Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_csv.py @ 58765:2ba7677bfa95 legacy-trunk

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testCopysign was defined twice in test_math; combine the definitions
author Mark Dickinson <dickinsm@gmail.com>
date Sat, 06 Feb 2010 23:11:25 +0000
parents 17891566a478
children 53f83f202a6d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # -*- coding: iso-8859-1 -*-
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2 # Copyright (C) 2001,2002 Python Software Foundation
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3 # csv package unit tests
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4
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5 import sys
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6 import os
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7 import unittest
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8 from StringIO import StringIO
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9 import tempfile
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10 import csv
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11 import gc
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12 from test import test_support
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13
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14 class Test_Csv(unittest.TestCase):
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15 """
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16 Test the underlying C csv parser in ways that are not appropriate
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17 from the high level interface. Further tests of this nature are done
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18 in TestDialectRegistry.
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19 """
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20 def _test_arg_valid(self, ctor, arg):
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21 self.assertRaises(TypeError, ctor)
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22 self.assertRaises(TypeError, ctor, None)
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23 self.assertRaises(TypeError, ctor, arg, bad_attr = 0)
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24 self.assertRaises(TypeError, ctor, arg, delimiter = 0)
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25 self.assertRaises(TypeError, ctor, arg, delimiter = 'XX')
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26 self.assertRaises(csv.Error, ctor, arg, 'foo')
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27 self.assertRaises(TypeError, ctor, arg, delimiter=None)
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28 self.assertRaises(TypeError, ctor, arg, delimiter=1)
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29 self.assertRaises(TypeError, ctor, arg, quotechar=1)
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30 self.assertRaises(TypeError, ctor, arg, lineterminator=None)
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31 self.assertRaises(TypeError, ctor, arg, lineterminator=1)
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32 self.assertRaises(TypeError, ctor, arg, quoting=None)
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33 self.assertRaises(TypeError, ctor, arg,
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34 quoting=csv.QUOTE_ALL, quotechar='')
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35 self.assertRaises(TypeError, ctor, arg,
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36 quoting=csv.QUOTE_ALL, quotechar=None)
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37
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38 def test_reader_arg_valid(self):
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39 self._test_arg_valid(csv.reader, [])
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40
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41 def test_writer_arg_valid(self):
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42 self._test_arg_valid(csv.writer, StringIO())
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43
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44 def _test_default_attrs(self, ctor, *args):
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45 obj = ctor(*args)
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46 # Check defaults
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47 self.assertEqual(obj.dialect.delimiter, ',')
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48 self.assertEqual(obj.dialect.doublequote, True)
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49 self.assertEqual(obj.dialect.escapechar, None)
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50 self.assertEqual(obj.dialect.lineterminator, "\r\n")
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51 self.assertEqual(obj.dialect.quotechar, '"')
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52 self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL)
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53 self.assertEqual(obj.dialect.skipinitialspace, False)
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54 self.assertEqual(obj.dialect.strict, False)
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55 # Try deleting or changing attributes (they are read-only)
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56 self.assertRaises(TypeError, delattr, obj.dialect, 'delimiter')
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57 self.assertRaises(TypeError, setattr, obj.dialect, 'delimiter', ':')
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58 self.assertRaises(AttributeError, delattr, obj.dialect, 'quoting')
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59 self.assertRaises(AttributeError, setattr, obj.dialect,
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60 'quoting', None)
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61
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62 def test_reader_attrs(self):
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63 self._test_default_attrs(csv.reader, [])
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64
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65 def test_writer_attrs(self):
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66 self._test_default_attrs(csv.writer, StringIO())
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67
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68 def _test_kw_attrs(self, ctor, *args):
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69 # Now try with alternate options
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70 kwargs = dict(delimiter=':', doublequote=False, escapechar='\\',
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71 lineterminator='\r', quotechar='*',
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72 quoting=csv.QUOTE_NONE, skipinitialspace=True,
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73 strict=True)
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74 obj = ctor(*args, **kwargs)
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75 self.assertEqual(obj.dialect.delimiter, ':')
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76 self.assertEqual(obj.dialect.doublequote, False)
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77 self.assertEqual(obj.dialect.escapechar, '\\')
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78 self.assertEqual(obj.dialect.lineterminator, "\r")
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79 self.assertEqual(obj.dialect.quotechar, '*')
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80 self.assertEqual(obj.dialect.quoting, csv.QUOTE_NONE)
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81 self.assertEqual(obj.dialect.skipinitialspace, True)
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82 self.assertEqual(obj.dialect.strict, True)
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83
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84 def test_reader_kw_attrs(self):
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85 self._test_kw_attrs(csv.reader, [])
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86
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87 def test_writer_kw_attrs(self):
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88 self._test_kw_attrs(csv.writer, StringIO())
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89
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90 def _test_dialect_attrs(self, ctor, *args):
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91 # Now try with dialect-derived options
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92 class dialect:
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93 delimiter='-'
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94 doublequote=False
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95 escapechar='^'
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96 lineterminator='$'
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97 quotechar='#'
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98 quoting=csv.QUOTE_ALL
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99 skipinitialspace=True
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100 strict=False
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101 args = args + (dialect,)
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102 obj = ctor(*args)
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103 self.assertEqual(obj.dialect.delimiter, '-')
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104 self.assertEqual(obj.dialect.doublequote, False)
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105 self.assertEqual(obj.dialect.escapechar, '^')
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106 self.assertEqual(obj.dialect.lineterminator, "$")
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107 self.assertEqual(obj.dialect.quotechar, '#')
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108 self.assertEqual(obj.dialect.quoting, csv.QUOTE_ALL)
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109 self.assertEqual(obj.dialect.skipinitialspace, True)
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110 self.assertEqual(obj.dialect.strict, False)
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111
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112 def test_reader_dialect_attrs(self):
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113 self._test_dialect_attrs(csv.reader, [])
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114
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115 def test_writer_dialect_attrs(self):
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116 self._test_dialect_attrs(csv.writer, StringIO())
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117
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118
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119 def _write_test(self, fields, expect, **kwargs):
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120 fd, name = tempfile.mkstemp()
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121 fileobj = os.fdopen(fd, "w+b")
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122 try:
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123 writer = csv.writer(fileobj, **kwargs)
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124 writer.writerow(fields)
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125 fileobj.seek(0)
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126 self.assertEqual(fileobj.read(),
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127 expect + writer.dialect.lineterminator)
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128 finally:
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129 fileobj.close()
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130 os.unlink(name)
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131
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132 def test_write_arg_valid(self):
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133 self.assertRaises(csv.Error, self._write_test, None, '')
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134 self._write_test((), '')
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135 self._write_test([None], '""')
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136 self.assertRaises(csv.Error, self._write_test,
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137 [None], None, quoting = csv.QUOTE_NONE)
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138 # Check that exceptions are passed up the chain
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139 class BadList:
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140 def __len__(self):
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141 return 10;
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142 def __getitem__(self, i):
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143 if i > 2:
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144 raise IOError
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145 self.assertRaises(IOError, self._write_test, BadList(), '')
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146 class BadItem:
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147 def __str__(self):
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148 raise IOError
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149 self.assertRaises(IOError, self._write_test, [BadItem()], '')
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150
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151 def test_write_bigfield(self):
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152 # This exercises the buffer realloc functionality
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153 bigstring = 'X' * 50000
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154 self._write_test([bigstring,bigstring], '%s,%s' % \
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155 (bigstring, bigstring))
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156
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157 def test_write_quoting(self):
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158 self._write_test(['a',1,'p,q'], 'a,1,"p,q"')
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159 self.assertRaises(csv.Error,
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160 self._write_test,
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161 ['a',1,'p,q'], 'a,1,p,q',
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162 quoting = csv.QUOTE_NONE)
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163 self._write_test(['a',1,'p,q'], 'a,1,"p,q"',
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164 quoting = csv.QUOTE_MINIMAL)
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165 self._write_test(['a',1,'p,q'], '"a",1,"p,q"',
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166 quoting = csv.QUOTE_NONNUMERIC)
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167 self._write_test(['a',1,'p,q'], '"a","1","p,q"',
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168 quoting = csv.QUOTE_ALL)
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169 self._write_test(['a\nb',1], '"a\nb","1"',
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170 quoting = csv.QUOTE_ALL)
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171
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172 def test_write_escape(self):
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173 self._write_test(['a',1,'p,q'], 'a,1,"p,q"',
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174 escapechar='\\')
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175 self.assertRaises(csv.Error,
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176 self._write_test,
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177 ['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
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178 escapechar=None, doublequote=False)
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179 self._write_test(['a',1,'p,"q"'], 'a,1,"p,\\"q\\""',
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180 escapechar='\\', doublequote = False)
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181 self._write_test(['"'], '""""',
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182 escapechar='\\', quoting = csv.QUOTE_MINIMAL)
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183 self._write_test(['"'], '\\"',
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184 escapechar='\\', quoting = csv.QUOTE_MINIMAL,
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185 doublequote = False)
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186 self._write_test(['"'], '\\"',
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187 escapechar='\\', quoting = csv.QUOTE_NONE)
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188 self._write_test(['a',1,'p,q'], 'a,1,p\\,q',
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189 escapechar='\\', quoting = csv.QUOTE_NONE)
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190
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191 def test_writerows(self):
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192 class BrokenFile:
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193 def write(self, buf):
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194 raise IOError
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195 writer = csv.writer(BrokenFile())
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196 self.assertRaises(IOError, writer.writerows, [['a']])
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197 fd, name = tempfile.mkstemp()
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198 fileobj = os.fdopen(fd, "w+b")
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199 try:
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200 writer = csv.writer(fileobj)
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201 self.assertRaises(TypeError, writer.writerows, None)
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202 writer.writerows([['a','b'],['c','d']])
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203 fileobj.seek(0)
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204 self.assertEqual(fileobj.read(), "a,b\r\nc,d\r\n")
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205 finally:
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206 fileobj.close()
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207 os.unlink(name)
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208
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209 def _read_test(self, input, expect, **kwargs):
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210 reader = csv.reader(input, **kwargs)
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211 result = list(reader)
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212 self.assertEqual(result, expect)
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213
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214 def test_read_oddinputs(self):
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215 self._read_test([], [])
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216 self._read_test([''], [[]])
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217 self.assertRaises(csv.Error, self._read_test,
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218 ['"ab"c'], None, strict = 1)
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219 # cannot handle null bytes for the moment
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220 self.assertRaises(csv.Error, self._read_test,
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221 ['ab\0c'], None, strict = 1)
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222 self._read_test(['"ab"c'], [['abc']], doublequote = 0)
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223
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224 def test_read_eol(self):
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225 self._read_test(['a,b'], [['a','b']])
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226 self._read_test(['a,b\n'], [['a','b']])
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227 self._read_test(['a,b\r\n'], [['a','b']])
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228 self._read_test(['a,b\r'], [['a','b']])
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229 self.assertRaises(csv.Error, self._read_test, ['a,b\rc,d'], [])
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230 self.assertRaises(csv.Error, self._read_test, ['a,b\nc,d'], [])
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231 self.assertRaises(csv.Error, self._read_test, ['a,b\r\nc,d'], [])
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232
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233 def test_read_escape(self):
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234 self._read_test(['a,\\b,c'], [['a', 'b', 'c']], escapechar='\\')
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235 self._read_test(['a,b\\,c'], [['a', 'b,c']], escapechar='\\')
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236 self._read_test(['a,"b\\,c"'], [['a', 'b,c']], escapechar='\\')
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237 self._read_test(['a,"b,\\c"'], [['a', 'b,c']], escapechar='\\')
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238 self._read_test(['a,"b,c\\""'], [['a', 'b,c"']], escapechar='\\')
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239 self._read_test(['a,"b,c"\\'], [['a', 'b,c\\']], escapechar='\\')
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240
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241 def test_read_quoting(self):
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242 self._read_test(['1,",3,",5'], [['1', ',3,', '5']])
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243 self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
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244 quotechar=None, escapechar='\\')
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245 self._read_test(['1,",3,",5'], [['1', '"', '3', '"', '5']],
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246 quoting=csv.QUOTE_NONE, escapechar='\\')
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247 # will this fail where locale uses comma for decimals?
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248 self._read_test([',3,"5",7.3, 9'], [['', 3, '5', 7.3, 9]],
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249 quoting=csv.QUOTE_NONNUMERIC)
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250 self._read_test(['"a\nb", 7'], [['a\nb', ' 7']])
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diff changeset
251 self.assertRaises(ValueError, self._read_test,
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diff changeset
252 ['abc,3'], [[]],
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253 quoting=csv.QUOTE_NONNUMERIC)
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diff changeset
254
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255 def test_read_bigfield(self):
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256 # This exercises the buffer realloc functionality and field size
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257 # limits.
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258 limit = csv.field_size_limit()
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259 try:
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260 size = 50000
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261 bigstring = 'X' * size
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diff changeset
262 bigline = '%s,%s' % (bigstring, bigstring)
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263 self._read_test([bigline], [[bigstring, bigstring]])
34406
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diff changeset
264 csv.field_size_limit(size)
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265 self._read_test([bigline], [[bigstring, bigstring]])
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diff changeset
266 self.assertEqual(csv.field_size_limit(), size)
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267 csv.field_size_limit(size-1)
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268 self.assertRaises(csv.Error, self._read_test, [bigline], [])
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diff changeset
269 self.assertRaises(TypeError, csv.field_size_limit, None)
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270 self.assertRaises(TypeError, csv.field_size_limit, 1, None)
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271 finally:
34406
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272 csv.field_size_limit(limit)
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273
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274 def test_read_linenum(self):
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275 for r in (csv.reader(['line,1', 'line,2', 'line,3']),
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276 csv.DictReader(['line,1', 'line,2', 'line,3'],
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277 fieldnames=['a', 'b', 'c'])):
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278 self.assertEqual(r.line_num, 0)
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279 r.next()
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280 self.assertEqual(r.line_num, 1)
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281 r.next()
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282 self.assertEqual(r.line_num, 2)
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283 r.next()
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284 self.assertEqual(r.line_num, 3)
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285 self.assertRaises(StopIteration, r.next)
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286 self.assertEqual(r.line_num, 3)
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287
52686
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diff changeset
288 def test_roundtrip_quoteed_newlines(self):
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diff changeset
289 fd, name = tempfile.mkstemp()
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diff changeset
290 fileobj = os.fdopen(fd, "w+b")
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diff changeset
291 try:
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292 writer = csv.writer(fileobj)
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diff changeset
293 self.assertRaises(TypeError, writer.writerows, None)
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diff changeset
294 rows = [['a\nb','b'],['c','x\r\nd']]
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diff changeset
295 writer.writerows(rows)
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diff changeset
296 fileobj.seek(0)
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diff changeset
297 for i, row in enumerate(csv.reader(fileobj)):
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diff changeset
298 self.assertEqual(row, rows[i])
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diff changeset
299 finally:
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diff changeset
300 fileobj.close()
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diff changeset
301 os.unlink(name)
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diff changeset
302
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303 class TestDialectRegistry(unittest.TestCase):
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304 def test_registry_badargs(self):
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parents:
diff changeset
305 self.assertRaises(TypeError, csv.list_dialects, None)
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diff changeset
306 self.assertRaises(TypeError, csv.get_dialect)
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diff changeset
307 self.assertRaises(csv.Error, csv.get_dialect, None)
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308 self.assertRaises(csv.Error, csv.get_dialect, "nonesuch")
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309 self.assertRaises(TypeError, csv.unregister_dialect)
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diff changeset
310 self.assertRaises(csv.Error, csv.unregister_dialect, None)
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311 self.assertRaises(csv.Error, csv.unregister_dialect, "nonesuch")
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312 self.assertRaises(TypeError, csv.register_dialect, None)
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diff changeset
313 self.assertRaises(TypeError, csv.register_dialect, None, None)
34404
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diff changeset
314 self.assertRaises(TypeError, csv.register_dialect, "nonesuch", 0, 0)
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diff changeset
315 self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
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diff changeset
316 badargument=None)
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diff changeset
317 self.assertRaises(TypeError, csv.register_dialect, "nonesuch",
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diff changeset
318 quoting=None)
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diff changeset
319 self.assertRaises(TypeError, csv.register_dialect, [])
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320
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parents:
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321 def test_registry(self):
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parents:
diff changeset
322 class myexceltsv(csv.excel):
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323 delimiter = "\t"
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diff changeset
324 name = "myexceltsv"
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diff changeset
325 expected_dialects = csv.list_dialects() + [name]
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diff changeset
326 expected_dialects.sort()
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diff changeset
327 csv.register_dialect(name, myexceltsv)
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parents:
diff changeset
328 try:
55002
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Benjamin Peterson <benjamin@python.org>
parents: 52686
diff changeset
329 self.assertTrue(csv.get_dialect(name).delimiter, '\t')
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diff changeset
330 got_dialects = csv.list_dialects()
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diff changeset
331 got_dialects.sort()
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parents:
diff changeset
332 self.assertEqual(expected_dialects, got_dialects)
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diff changeset
333 finally:
cc35ed2b26a8 new CSV file processing module - see PEP 305
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parents:
diff changeset
334 csv.unregister_dialect(name)
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parents:
diff changeset
335
34391
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
336 def test_register_kwargs(self):
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Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
337 name = 'fedcba'
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parents: 34380
diff changeset
338 csv.register_dialect(name, delimiter=';')
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
339 try:
55002
6768b2350c57 convert usage of fail* to assert*
Benjamin Peterson <benjamin@python.org>
parents: 52686
diff changeset
340 self.assertTrue(csv.get_dialect(name).delimiter, '\t')
6768b2350c57 convert usage of fail* to assert*
Benjamin Peterson <benjamin@python.org>
parents: 52686
diff changeset
341 self.assertTrue(list(csv.reader('X;Y;Z', name)), ['X', 'Y', 'Z'])
34391
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Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
342 finally:
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
parents: 34380
diff changeset
343 csv.unregister_dialect(name)
0a1608a5eb05 Allow dialect-describing keywords to be supplied to register_dialect,
Andrew McNamara <andrewm@object-craft.com.au>
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diff changeset
344
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diff changeset
345 def test_incomplete_dialect(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
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parents:
diff changeset
346 class myexceltsv(csv.Dialect):
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diff changeset
347 delimiter = "\t"
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diff changeset
348 self.assertRaises(csv.Error, myexceltsv)
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diff changeset
349
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diff changeset
350 def test_space_dialect(self):
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parents:
diff changeset
351 class space(csv.excel):
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parents:
diff changeset
352 delimiter = " "
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diff changeset
353 quoting = csv.QUOTE_NONE
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diff changeset
354 escapechar = "\\"
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parents:
diff changeset
355
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diff changeset
356 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
357 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
358 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
359 fileobj.write("abc def\nc1ccccc1 benzene\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
360 fileobj.seek(0)
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diff changeset
361 rdr = csv.reader(fileobj, dialect=space())
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
362 self.assertEqual(rdr.next(), ["abc", "def"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
363 self.assertEqual(rdr.next(), ["c1ccccc1", "benzene"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
364 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
365 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
366 os.unlink(name)
32538
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diff changeset
367
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diff changeset
368 def test_dialect_apply(self):
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diff changeset
369 class testA(csv.excel):
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diff changeset
370 delimiter = "\t"
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diff changeset
371 class testB(csv.excel):
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diff changeset
372 delimiter = ":"
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diff changeset
373 class testC(csv.excel):
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diff changeset
374 delimiter = "|"
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diff changeset
375
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diff changeset
376 csv.register_dialect('testC', testC)
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parents:
diff changeset
377 try:
32258
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diff changeset
378 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
379 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
380 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
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diff changeset
381 writer = csv.writer(fileobj)
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parents: 30632
diff changeset
382 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
383 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
384 self.assertEqual(fileobj.read(), "1,2,3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
385 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
386 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
387 os.unlink(name)
32538
4fab4a5cce2f Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 32258
diff changeset
388
32258
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Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
389 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
390 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
391 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
392 writer = csv.writer(fileobj, testA)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
393 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
394 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
395 self.assertEqual(fileobj.read(), "1\t2\t3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
396 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
397 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
398 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
399
32258
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Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
400 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
401 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
402 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
403 writer = csv.writer(fileobj, dialect=testB())
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
404 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
405 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
406 self.assertEqual(fileobj.read(), "1:2:3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
407 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
408 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
409 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
410
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
411 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
412 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
413 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
414 writer = csv.writer(fileobj, dialect='testC')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
415 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
416 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
417 self.assertEqual(fileobj.read(), "1|2|3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
418 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
419 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
420 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
421
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
422 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
423 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
424 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
425 writer = csv.writer(fileobj, dialect=testA, delimiter=';')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
426 writer.writerow([1,2,3])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
427 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
428 self.assertEqual(fileobj.read(), "1;2;3\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
429 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
430 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
431 os.unlink(name)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
432
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
433 finally:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
434 csv.unregister_dialect('testC')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
435
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
436 def test_bad_dialect(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
437 # Unknown parameter
34340
be4929e5179b Improved the implementation of the internal "dialect" type. The new
Andrew McNamara <andrewm@object-craft.com.au>
parents: 32538
diff changeset
438 self.assertRaises(TypeError, csv.reader, [], bad_attr = 0)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
439 # Bad values
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
440 self.assertRaises(TypeError, csv.reader, [], delimiter = None)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
441 self.assertRaises(TypeError, csv.reader, [], quoting = -1)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
442 self.assertRaises(TypeError, csv.reader, [], quoting = 100)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
443
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
444 class TestCsvBase(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
445 def readerAssertEqual(self, input, expected_result):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
446 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
447 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
448 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
449 fileobj.write(input)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
450 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
451 reader = csv.reader(fileobj, dialect = self.dialect)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
452 fields = list(reader)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
453 self.assertEqual(fields, expected_result)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
454 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
455 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
456 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
457
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
458 def writerAssertEqual(self, input, expected_result):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
459 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
460 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
461 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
462 writer = csv.writer(fileobj, dialect = self.dialect)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
463 writer.writerows(input)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
464 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
465 self.assertEqual(fileobj.read(), expected_result)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
466 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
467 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
468 os.unlink(name)
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
469
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
470 class TestDialectExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
471 dialect = 'excel'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
472
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
473 def test_single(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
474 self.readerAssertEqual('abc', [['abc']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
475
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
476 def test_simple(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
477 self.readerAssertEqual('1,2,3,4,5', [['1','2','3','4','5']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
478
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
479 def test_blankline(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
480 self.readerAssertEqual('', [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
481
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
482 def test_empty_fields(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
483 self.readerAssertEqual(',', [['', '']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
484
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
485 def test_singlequoted(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
486 self.readerAssertEqual('""', [['']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
487
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
488 def test_singlequoted_left_empty(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
489 self.readerAssertEqual('"",', [['','']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
490
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
491 def test_singlequoted_right_empty(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
492 self.readerAssertEqual(',""', [['','']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
493
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
494 def test_single_quoted_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
495 self.readerAssertEqual('""""', [['"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
496
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
497 def test_quoted_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
498 self.readerAssertEqual('""""""', [['""']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
499
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
500 def test_inline_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
501 self.readerAssertEqual('a""b', [['a""b']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
502
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
503 def test_inline_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
504 self.readerAssertEqual('a"b"c', [['a"b"c']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
505
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
506 def test_quotes_and_more(self):
41120
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
507 # Excel would never write a field containing '"a"b', but when
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
508 # reading one, it will return 'ab'.
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
509 self.readerAssertEqual('"a"b', [['ab']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
510
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
511 def test_lone_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
512 self.readerAssertEqual('a"b', [['a"b']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
513
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
514 def test_quote_and_quote(self):
41120
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
515 # Excel would never write a field containing '"a" "b"', but when
47ede65e2efd Sane humans would call these invalid tests, but Andrew McNamara pointed out
Skip Montanaro <skip@pobox.com>
parents: 38464
diff changeset
516 # reading one, it will return 'a "b"'.
28339
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Skip Montanaro <skip@pobox.com>
parents:
diff changeset
517 self.readerAssertEqual('"a" "b"', [['a "b"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
518
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
519 def test_space_and_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
520 self.readerAssertEqual(' "a"', [[' "a"']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
521
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
522 def test_quoted(self):
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
523 self.readerAssertEqual('1,2,3,"I think, therefore I am",5,6',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
524 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
525 'I think, therefore I am',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
526 '5', '6']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
527
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
528 def test_quoted_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
529 self.readerAssertEqual('1,2,3,"""I see,"" said the blind man","as he picked up his hammer and saw"',
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
530 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
531 '"I see," said the blind man',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
532 'as he picked up his hammer and saw']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
533
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
534 def test_quoted_nl(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
535 input = '''\
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
536 1,2,3,"""I see,""
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
537 said the blind man","as he picked up his
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
538 hammer and saw"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
539 9,8,7,6'''
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
540 self.readerAssertEqual(input,
28774
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
541 [['1', '2', '3',
c9bee11eaa8b Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 28570
diff changeset
542 '"I see,"\nsaid the blind man',
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
543 'as he picked up his\nhammer and saw'],
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
544 ['9','8','7','6']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
545
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
546 def test_dubious_quote(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
547 self.readerAssertEqual('12,12,1",', [['12', '12', '1"', '']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
548
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
549 def test_null(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
550 self.writerAssertEqual([], '')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
551
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
552 def test_single(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
553 self.writerAssertEqual([['abc']], 'abc\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
554
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
555 def test_simple(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
556 self.writerAssertEqual([[1, 2, 'abc', 3, 4]], '1,2,abc,3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
557
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
558 def test_quotes(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
559 self.writerAssertEqual([[1, 2, 'a"bc"', 3, 4]], '1,2,"a""bc""",3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
560
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
561 def test_quote_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
562 self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
563
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
564 def test_newlines(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
565 self.writerAssertEqual([[1, 2, 'a\nbc', 3, 4]], '1,2,"a\nbc",3,4\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
566
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
567 class EscapedExcel(csv.excel):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
568 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
569 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
570
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
571 class TestEscapedExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
572 dialect = EscapedExcel()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
573
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
574 def test_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
575 self.writerAssertEqual([['abc,def']], 'abc\\,def\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
576
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
577 def test_read_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
578 self.readerAssertEqual('abc\\,def\r\n', [['abc,def']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
579
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
580 class QuotedEscapedExcel(csv.excel):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
581 quoting = csv.QUOTE_NONNUMERIC
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
582 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
583
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
584 class TestQuotedEscapedExcel(TestCsvBase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
585 dialect = QuotedEscapedExcel()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
586
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
587 def test_write_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
588 self.writerAssertEqual([['abc,def']], '"abc,def"\r\n')
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
589
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
590 def test_read_escape_fieldsep(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
591 self.readerAssertEqual('"abc\\,def"\r\n', [['abc,def']])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
592
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
593 class TestDictFields(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
594 ### "long" means the row is longer than the number of fieldnames
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
595 ### "short" means there are fewer elements in the row than fieldnames
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
596 def test_write_simple_dict(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
597 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
598 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
599 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
600 writer = csv.DictWriter(fileobj, fieldnames = ["f1", "f2", "f3"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
601 writer.writerow({"f1": 10, "f3": "abc"})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
602 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
603 self.assertEqual(fileobj.read(), "10,,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
604 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
605 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
606 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
607
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
608 def test_write_no_fields(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
609 fileobj = StringIO()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
610 self.assertRaises(TypeError, csv.DictWriter, fileobj)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
611
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
612 def test_read_dict_fields(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
613 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
614 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
615 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
616 fileobj.write("1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
617 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
618 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
619 fieldnames=["f1", "f2", "f3"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
620 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
621 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
622 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
623 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
624
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
625 def test_read_dict_no_fieldnames(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
626 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
627 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
628 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
629 fileobj.write("f1,f2,f3\r\n1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
630 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
631 reader = csv.DictReader(fileobj)
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
632 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
633 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
634 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
635 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
636 os.unlink(name)
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
637
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
638 # Two test cases to make sure existing ways of implicitly setting
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
639 # fieldnames continue to work. Both arise from discussion in issue3436.
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
640 def test_read_dict_fieldnames_from_file(self):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
641 fd, name = tempfile.mkstemp()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
642 f = os.fdopen(fd, "w+b")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
643 try:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
644 f.write("f1,f2,f3\r\n1,2,abc\r\n")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
645 f.seek(0)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
646 reader = csv.DictReader(f, fieldnames=csv.reader(f).next())
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
647 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
648 self.assertEqual(reader.next(), {"f1": '1', "f2": '2', "f3": 'abc'})
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
649 finally:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
650 f.close()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
651 os.unlink(name)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
652
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
653 def test_read_dict_fieldnames_chain(self):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
654 import itertools
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
655 fd, name = tempfile.mkstemp()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
656 f = os.fdopen(fd, "w+b")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
657 try:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
658 f.write("f1,f2,f3\r\n1,2,abc\r\n")
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
659 f.seek(0)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
660 reader = csv.DictReader(f)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
661 first = next(reader)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
662 for row in itertools.chain([first], reader):
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
663 self.assertEqual(reader.fieldnames, ["f1", "f2", "f3"])
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
664 self.assertEqual(row, {"f1": '1', "f2": '2', "f3": 'abc'})
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
665 finally:
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
666 f.close()
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
667 os.unlink(name)
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
668
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
669 def test_read_long(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
670 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
671 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
672 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
673 fileobj.write("1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
674 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
675 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
676 fieldnames=["f1", "f2"])
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
677 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
678 None: ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
679 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
680 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
681 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
682
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
683 def test_read_long_with_rest(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
684 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
685 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
686 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
687 fileobj.write("1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
688 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
689 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
690 fieldnames=["f1", "f2"], restkey="_rest")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
691 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
692 "_rest": ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
693 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
694 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
695 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
696
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
697 def test_read_long_with_rest_no_fieldnames(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
698 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
699 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
700 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
701 fileobj.write("f1,f2\r\n1,2,abc,4,5,6\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
702 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
703 reader = csv.DictReader(fileobj, restkey="_rest")
48198
47967690b585 accept issue 3436
Skip Montanaro <skip@pobox.com>
parents: 45981
diff changeset
704 self.assertEqual(reader.fieldnames, ["f1", "f2"])
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
705 self.assertEqual(reader.next(), {"f1": '1', "f2": '2',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
706 "_rest": ["abc", "4", "5", "6"]})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
707 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
708 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
709 os.unlink(name)
30632
f9dfdcb897bb Make the fieldnames argument optional in the DictReader. If self.fieldnames
Skip Montanaro <skip@pobox.com>
parents: 30356
diff changeset
710
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
711 def test_read_short(self):
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
712 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
713 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
714 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
715 fileobj.write("1,2,abc,4,5,6\r\n1,2,abc\r\n")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
716 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
717 reader = csv.DictReader(fileobj,
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
718 fieldnames="1 2 3 4 5 6".split(),
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
719 restval="DEFAULT")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
720 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
721 "4": '4', "5": '5', "6": '6'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
722 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
723 "4": 'DEFAULT', "5": 'DEFAULT',
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
724 "6": 'DEFAULT'})
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
725 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
726 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
727 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
728
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
729 def test_read_multi(self):
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
730 sample = [
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
731 '2147483648,43.0e12,17,abc,def\r\n',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
732 '147483648,43.0e2,17,abc,def\r\n',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
733 '47483648,43.0,170,abc,def\r\n'
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
734 ]
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
735
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
736 reader = csv.DictReader(sample,
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
737 fieldnames="i1 float i2 s1 s2".split())
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
738 self.assertEqual(reader.next(), {"i1": '2147483648',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
739 "float": '43.0e12',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
740 "i2": '17',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
741 "s1": 'abc',
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
742 "s2": 'def'})
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
743
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
744 def test_read_with_blanks(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
745 reader = csv.DictReader(["1,2,abc,4,5,6\r\n","\r\n",
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
746 "1,2,abc,4,5,6\r\n"],
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
747 fieldnames="1 2 3 4 5 6".split())
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
748 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
749 "4": '4', "5": '5', "6": '6'})
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
750 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
751 "4": '4', "5": '5', "6": '6'})
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
752
30356
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
753 def test_read_semi_sep(self):
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
754 reader = csv.DictReader(["1;2;abc;4;5;6\r\n"],
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
755 fieldnames="1 2 3 4 5 6".split(),
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
756 delimiter=';')
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
757 self.assertEqual(reader.next(), {"1": '1', "2": '2', "3": 'abc',
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
758 "4": '4', "5": '5', "6": '6'})
7504812fdb7e **kwds arg was missing from __init__ for Dict{Reader,Writer} classes.
Skip Montanaro <skip@pobox.com>
parents: 29410
diff changeset
759
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
760 class TestArrayWrites(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
761 def test_int_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
762 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
763 contents = [(20-i) for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
764 a = array.array('i', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
765
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
766 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
767 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
768 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
769 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
770 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
771 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
772 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
773 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
774 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
775 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
776 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
777
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
778 def test_double_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
779 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
780 contents = [(20-i)*0.1 for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
781 a = array.array('d', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
782 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
783 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
784 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
785 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
786 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
787 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
788 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
789 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
790 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
791 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
792 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
793
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
794 def test_float_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
795 import array
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
796 contents = [(20-i)*0.1 for i in range(20)]
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
797 a = array.array('f', contents)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
798 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
799 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
800 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
801 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
802 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
803 expected = ",".join([str(i) for i in a])+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
804 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
805 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
806 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
807 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
808 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
809
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
810 def test_char_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
811 import array, string
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
812 a = array.array('c', string.letters)
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
813 fd, name = tempfile.mkstemp()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
814 fileobj = os.fdopen(fd, "w+b")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
815 try:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
816 writer = csv.writer(fileobj, dialect="excel")
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
817 writer.writerow(a)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
818 expected = ",".join(a)+"\r\n"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
819 fileobj.seek(0)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
820 self.assertEqual(fileobj.read(), expected)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
821 finally:
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
822 fileobj.close()
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
823 os.unlink(name)
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
824
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
825 class TestDialectValidity(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
826 def test_quoting(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
827 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
828 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
829 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
830 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
831 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
832 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
833 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
834 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
835
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
836 mydialect.quoting = None
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
837 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
838
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
839 mydialect.doublequote = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
840 mydialect.quoting = csv.QUOTE_ALL
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
841 mydialect.quotechar = '"'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
842 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
843
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
844 mydialect.quotechar = "''"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
845 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
846
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
847 mydialect.quotechar = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
848 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
849
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
850 def test_delimiter(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
851 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
852 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
853 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
854 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
855 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
856 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
857 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
858 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
859
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
860 mydialect.delimiter = ":::"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
861 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
862
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
863 mydialect.delimiter = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
864 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
865
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
866 def test_lineterminator(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
867 class mydialect(csv.Dialect):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
868 delimiter = ";"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
869 escapechar = '\\'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
870 doublequote = False
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
871 skipinitialspace = True
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
872 lineterminator = '\r\n'
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
873 quoting = csv.QUOTE_NONE
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
874 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
875
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
876 mydialect.lineterminator = ":::"
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
877 d = mydialect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
878
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
879 mydialect.lineterminator = 4
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
880 self.assertRaises(csv.Error, mydialect)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
881
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
882
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
883 class TestSniffer(unittest.TestCase):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
884 sample1 = """\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
885 Harry's, Arlington Heights, IL, 2/1/03, Kimi Hayes
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
886 Shark City, Glendale Heights, IL, 12/28/02, Prezence
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
887 Tommy's Place, Blue Island, IL, 12/28/02, Blue Sunday/White Crow
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
888 Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
889 """
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
890 sample2 = """\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
891 'Harry''s':'Arlington Heights':'IL':'2/1/03':'Kimi Hayes'
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
892 'Shark City':'Glendale Heights':'IL':'12/28/02':'Prezence'
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
893 'Tommy''s Place':'Blue Island':'IL':'12/28/02':'Blue Sunday/White Crow'
56253
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
894 'Stonecutters ''Seafood'' and Chop House':'Lemont':'IL':'12/19/02':'Week Back'
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
895 """
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
896 header = '''\
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
897 "venue","city","state","date","performers"
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
898 '''
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
899 sample3 = '''\
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
900 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
901 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
902 05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
903 '''
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
904
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
905 sample4 = '''\
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
906 2147483648;43.0e12;17;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
907 147483648;43.0e2;17;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
908 47483648;43.0;170;abc;def
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
909 '''
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
910
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
911 sample5 = "aaa\tbbb\r\nAAA\t\r\nBBB\t\r\n"
36157
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
912 sample6 = "a|b|c\r\nd|e|f\r\n"
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
913 sample7 = "'a'|'b'|'c'\r\n'd'|e|f\r\n"
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
914
28827
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
915 def test_has_header(self):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
916 sniffer = csv.Sniffer()
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
917 self.assertEqual(sniffer.has_header(self.sample1), False)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
918 self.assertEqual(sniffer.has_header(self.header+self.sample1), True)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
919
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
920 def test_sniff(self):
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
921 sniffer = csv.Sniffer()
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
922 dialect = sniffer.sniff(self.sample1)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
923 self.assertEqual(dialect.delimiter, ",")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
924 self.assertEqual(dialect.quotechar, '"')
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
925 self.assertEqual(dialect.skipinitialspace, True)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
926
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
927 dialect = sniffer.sniff(self.sample2)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
928 self.assertEqual(dialect.delimiter, ":")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
929 self.assertEqual(dialect.quotechar, "'")
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
930 self.assertEqual(dialect.skipinitialspace, False)
dc4e47e6f002 some sniffer tests
Skip Montanaro <skip@pobox.com>
parents: 28774
diff changeset
931
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
932 def test_delimiters(self):
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
933 sniffer = csv.Sniffer()
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
934 dialect = sniffer.sniff(self.sample3)
38464
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
935 # given that all three lines in sample3 are equal,
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
936 # I think that any character could have been 'guessed' as the
e989ee5d404a ("Forward-port" of r46506)
Armin Rigo <arigo@tunes.org>
parents: 36157
diff changeset
937 # delimiter, depending on dictionary order
58460
17891566a478 use assert[Not]In where appropriate
Ezio Melotti <ezio.melotti@gmail.com>
parents: 56253
diff changeset
938 self.assertIn(dialect.delimiter, self.sample3)
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
939 dialect = sniffer.sniff(self.sample3, delimiters="?,")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
940 self.assertEqual(dialect.delimiter, "?")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
941 dialect = sniffer.sniff(self.sample3, delimiters="/,")
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
942 self.assertEqual(dialect.delimiter, "/")
29410
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
943 dialect = sniffer.sniff(self.sample4)
f2df9c9f0fcb add a couple test cases which involve longs and floats in 'e' format.
Skip Montanaro <skip@pobox.com>
parents: 29169
diff changeset
944 self.assertEqual(dialect.delimiter, ";")
36146
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
945 dialect = sniffer.sniff(self.sample5)
22dbf5818b0b Fix for problem with Sniffer class. If your delimiter is whitespace and the
Skip Montanaro <skip@pobox.com>
parents: 34921
diff changeset
946 self.assertEqual(dialect.delimiter, "\t")
36157
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
947 dialect = sniffer.sniff(self.sample6)
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
948 self.assertEqual(dialect.delimiter, "|")
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
949 dialect = sniffer.sniff(self.sample7)
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
950 self.assertEqual(dialect.delimiter, "|")
96eb2a5cfbef Fix a delimiter detection problem in sniffer. Sniffing "a|b|c\r\n" was
Skip Montanaro <skip@pobox.com>
parents: 36146
diff changeset
951 self.assertEqual(dialect.quotechar, "'")
29169
434ef174f478 * Correct Sniffer doc to correspond to the implementation.
Skip Montanaro <skip@pobox.com>
parents: 28991
diff changeset
952
56253
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
953 def test_doublequote(self):
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
954 sniffer = csv.Sniffer()
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
955 dialect = sniffer.sniff(self.header)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
956 self.assertFalse(dialect.doublequote)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
957 dialect = sniffer.sniff(self.sample2)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
958 self.assertTrue(dialect.doublequote)
c76674c2d74d Patch from Thomas Barr so that csv.Sniffer will set doublequote property.
Skip Montanaro <skip@pobox.com>
parents: 55002
diff changeset
959
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
960 if not hasattr(sys, "gettotalrefcount"):
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
961 if test_support.verbose: print "*** skipping leakage tests ***"
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
962 else:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
963 class NUL:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
964 def write(s, *args):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
965 pass
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
966 writelines = write
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
967
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
968 class TestLeaks(unittest.TestCase):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
969 def test_create_read(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
970 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
971 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
972 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
973 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
974 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
975 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
976 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
977 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
978 csv.reader(["a,b,c\r\n"])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
979 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
980 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
981 # if csv.reader() leaks, last delta should be 3 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
982 self.assertEqual(delta < 3, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
983
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
984 def test_create_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
985 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
986 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
987 s = NUL()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
988 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
989 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
990 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
991 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
992 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
993 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
994 csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
995 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
996 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
997 # if csv.writer() leaks, last delta should be 3 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
998 self.assertEqual(delta < 3, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
999
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1000 def test_read(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1001 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1002 rows = ["a,b,c\r\n"]*5
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1003 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1004 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1005 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1006 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1007 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1008 rdr = csv.reader(rows)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1009 for row in rdr:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1010 pass
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1011 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1012 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1013 # if reader leaks during read, delta should be 5 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1014 self.assertEqual(delta < 5, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1015
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1016 def test_write(self):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1017 delta = 0
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1018 rows = [[1,2,3]]*5
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1019 s = NUL()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1020 lastrc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1021 for i in xrange(20):
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1022 gc.collect()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1023 self.assertEqual(gc.garbage, [])
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1024 rc = sys.gettotalrefcount()
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1025 writer = csv.writer(s)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1026 for row in rows:
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1027 writer.writerow(row)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1028 delta = rc-lastrc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1029 lastrc = rc
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1030 # if writer leaks during write, last delta should be 5 or more
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1031 self.assertEqual(delta < 5, True)
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1032
28991
ce6c3cc422ab add not-yet-supported Unicode test just so it doesn't get lost.
Skip Montanaro <skip@pobox.com>
parents: 28917
diff changeset
1033 # commented out for now - csv module doesn't yet support Unicode
32258
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1034 ## class TestUnicode(unittest.TestCase):
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1035 ## def test_unicode_read(self):
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1036 ## import codecs
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1037 ## f = codecs.EncodedFile(StringIO("Martin von Löwis,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1038 ## "Marc André Lemburg,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1039 ## "Guido van Rossum,"
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1040 ## "François Pinard\r\n"),
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1041 ## data_encoding='iso-8859-1')
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1042 ## reader = csv.reader(f)
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1043 ## self.assertEqual(list(reader), [[u"Martin von Löwis",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1044 ## u"Marc André Lemburg",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1045 ## u"Guido van Rossum",
3dfe81ac0e7c Rewrote to use temporary files instead of StringIO objects in most places.
Skip Montanaro <skip@pobox.com>
parents: 30632
diff changeset
1046 ## u"François Pinardn"]])
28991
ce6c3cc422ab add not-yet-supported Unicode test just so it doesn't get lost.
Skip Montanaro <skip@pobox.com>
parents: 28917
diff changeset
1047
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1048 def test_main():
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1049 mod = sys.modules[__name__]
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1050 test_support.run_unittest(
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1051 *[getattr(mod, name) for name in dir(mod) if name.startswith('Test')]
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1052 )
28339
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1053
cc35ed2b26a8 new CSV file processing module - see PEP 305
Skip Montanaro <skip@pobox.com>
parents:
diff changeset
1054 if __name__ == '__main__':
28917
1741af48fd9f Combine the functionality of test_support.run_unittest()
Walter Dörwald <walter@livinglogic.de>
parents: 28827
diff changeset
1055 test_main()