Mercurial > cpython-lru_cache-weakref

annotate Lib/sqlite3/test/types.py @ 39042:c02fa187e0f4 legacy-trunk

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Part of SF patch #1484695. This removes dead code. The chksum was already verified in .frombuf() on the lines above. If there was a problem an exception is raised, so there was no way this condition could have been true.
author Neal Norwitz <nnorwitz@gmail.com>
date Mon, 10 Jul 2006 00:23:17 +0000
parents 5dd736268ff4
children b9d4ced23506
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #-*- coding: ISO-8859-1 -*-
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2 # pysqlite2/test/types.py: tests for type conversion and detection
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3 #
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4 # Copyright (C) 2005 Gerhard Häring <gh@ghaering.de>
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5 #
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6 # This file is part of pysqlite.
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7 #
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8 # This software is provided 'as-is', without any express or implied
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9 # warranty. In no event will the authors be held liable for any damages
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10 # arising from the use of this software.
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11 #
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12 # Permission is granted to anyone to use this software for any purpose,
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13 # including commercial applications, and to alter it and redistribute it
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14 # freely, subject to the following restrictions:
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15 #
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16 # 1. The origin of this software must not be misrepresented; you must not
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17 # claim that you wrote the original software. If you use this software
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18 # in a product, an acknowledgment in the product documentation would be
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19 # appreciated but is not required.
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20 # 2. Altered source versions must be plainly marked as such, and must not be
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21 # misrepresented as being the original software.
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22 # 3. This notice may not be removed or altered from any source distribution.
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23
38978
5dd736268ff4 The sqlite3 module did cut off data from the SQLite database at the first null
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24 import bz2, datetime
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25 import unittest
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26 import sqlite3 as sqlite
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27
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28 class SqliteTypeTests(unittest.TestCase):
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29 def setUp(self):
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30 self.con = sqlite.connect(":memory:")
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31 self.cur = self.con.cursor()
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32 self.cur.execute("create table test(i integer, s varchar, f number, b blob)")
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33
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34 def tearDown(self):
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35 self.cur.close()
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36 self.con.close()
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37
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38 def CheckString(self):
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39 self.cur.execute("insert into test(s) values (?)", (u"Österreich",))
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40 self.cur.execute("select s from test")
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41 row = self.cur.fetchone()
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42 self.failUnlessEqual(row[0], u"Österreich")
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43
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44 def CheckSmallInt(self):
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45 self.cur.execute("insert into test(i) values (?)", (42,))
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46 self.cur.execute("select i from test")
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47 row = self.cur.fetchone()
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48 self.failUnlessEqual(row[0], 42)
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49
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50 def CheckLargeInt(self):
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51 num = 2**40
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52 self.cur.execute("insert into test(i) values (?)", (num,))
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53 self.cur.execute("select i from test")
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54 row = self.cur.fetchone()
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55 self.failUnlessEqual(row[0], num)
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56
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57 def CheckFloat(self):
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58 val = 3.14
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59 self.cur.execute("insert into test(f) values (?)", (val,))
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60 self.cur.execute("select f from test")
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61 row = self.cur.fetchone()
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62 self.failUnlessEqual(row[0], val)
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63
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64 def CheckBlob(self):
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65 val = buffer("Guglhupf")
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66 self.cur.execute("insert into test(b) values (?)", (val,))
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67 self.cur.execute("select b from test")
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68 row = self.cur.fetchone()
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69 self.failUnlessEqual(row[0], val)
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70
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71 def CheckUnicodeExecute(self):
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72 self.cur.execute(u"select 'Österreich'")
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73 row = self.cur.fetchone()
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74 self.failUnlessEqual(row[0], u"Österreich")
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75
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76 class DeclTypesTests(unittest.TestCase):
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77 class Foo:
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78 def __init__(self, _val):
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79 self.val = _val
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80
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81 def __cmp__(self, other):
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82 if not isinstance(other, DeclTypesTests.Foo):
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83 raise ValueError
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84 if self.val == other.val:
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85 return 0
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86 else:
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87 return 1
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88
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89 def __conform__(self, protocol):
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90 if protocol is sqlite.PrepareProtocol:
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91 return self.val
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92 else:
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93 return None
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94
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95 def __str__(self):
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96 return "<%s>" % self.val
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97
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98 def setUp(self):
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99 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
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100 self.cur = self.con.cursor()
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101 self.cur.execute("create table test(i int, s str, f float, b bool, u unicode, foo foo, bin blob)")
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102
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103 # override float, make them always return the same number
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104 sqlite.converters["FLOAT"] = lambda x: 47.2
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105
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106 # and implement two custom ones
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107 sqlite.converters["BOOL"] = lambda x: bool(int(x))
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108 sqlite.converters["FOO"] = DeclTypesTests.Foo
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109
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110 def tearDown(self):
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111 del sqlite.converters["FLOAT"]
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112 del sqlite.converters["BOOL"]
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113 del sqlite.converters["FOO"]
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114 self.cur.close()
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115 self.con.close()
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116
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117 def CheckString(self):
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118 # default
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119 self.cur.execute("insert into test(s) values (?)", ("foo",))
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120 self.cur.execute("select s from test")
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121 row = self.cur.fetchone()
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122 self.failUnlessEqual(row[0], "foo")
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123
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124 def CheckSmallInt(self):
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125 # default
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126 self.cur.execute("insert into test(i) values (?)", (42,))
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127 self.cur.execute("select i from test")
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128 row = self.cur.fetchone()
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129 self.failUnlessEqual(row[0], 42)
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130
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131 def CheckLargeInt(self):
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132 # default
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133 num = 2**40
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134 self.cur.execute("insert into test(i) values (?)", (num,))
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135 self.cur.execute("select i from test")
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136 row = self.cur.fetchone()
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137 self.failUnlessEqual(row[0], num)
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138
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139 def CheckFloat(self):
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140 # custom
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141 val = 3.14
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142 self.cur.execute("insert into test(f) values (?)", (val,))
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143 self.cur.execute("select f from test")
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144 row = self.cur.fetchone()
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145 self.failUnlessEqual(row[0], 47.2)
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146
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147 def CheckBool(self):
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148 # custom
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149 self.cur.execute("insert into test(b) values (?)", (False,))
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150 self.cur.execute("select b from test")
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151 row = self.cur.fetchone()
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152 self.failUnlessEqual(row[0], False)
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153
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154 self.cur.execute("delete from test")
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155 self.cur.execute("insert into test(b) values (?)", (True,))
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156 self.cur.execute("select b from test")
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157 row = self.cur.fetchone()
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158 self.failUnlessEqual(row[0], True)
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159
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160 def CheckUnicode(self):
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161 # default
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162 val = u"\xd6sterreich"
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163 self.cur.execute("insert into test(u) values (?)", (val,))
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164 self.cur.execute("select u from test")
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165 row = self.cur.fetchone()
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166 self.failUnlessEqual(row[0], val)
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167
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168 def CheckFoo(self):
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169 val = DeclTypesTests.Foo("bla")
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170 self.cur.execute("insert into test(foo) values (?)", (val,))
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171 self.cur.execute("select foo from test")
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172 row = self.cur.fetchone()
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173 self.failUnlessEqual(row[0], val)
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174
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175 def CheckUnsupportedSeq(self):
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176 class Bar: pass
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177 val = Bar()
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178 try:
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179 self.cur.execute("insert into test(f) values (?)", (val,))
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180 self.fail("should have raised an InterfaceError")
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181 except sqlite.InterfaceError:
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182 pass
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183 except:
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184 self.fail("should have raised an InterfaceError")
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185
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186 def CheckUnsupportedDict(self):
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187 class Bar: pass
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188 val = Bar()
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189 try:
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190 self.cur.execute("insert into test(f) values (:val)", {"val": val})
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191 self.fail("should have raised an InterfaceError")
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192 except sqlite.InterfaceError:
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193 pass
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194 except:
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195 self.fail("should have raised an InterfaceError")
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196
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197 def CheckBlob(self):
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198 # default
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199 val = buffer("Guglhupf")
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200 self.cur.execute("insert into test(bin) values (?)", (val,))
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201 self.cur.execute("select bin from test")
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202 row = self.cur.fetchone()
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203 self.failUnlessEqual(row[0], val)
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204
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205 class ColNamesTests(unittest.TestCase):
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206 def setUp(self):
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207 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES|sqlite.PARSE_DECLTYPES)
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208 self.cur = self.con.cursor()
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209 self.cur.execute("create table test(x foo)")
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210
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211 sqlite.converters["FOO"] = lambda x: "[%s]" % x
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212 sqlite.converters["BAR"] = lambda x: "<%s>" % x
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213 sqlite.converters["EXC"] = lambda x: 5/0
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214
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215 def tearDown(self):
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216 del sqlite.converters["FOO"]
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217 del sqlite.converters["BAR"]
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218 del sqlite.converters["EXC"]
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219 self.cur.close()
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220 self.con.close()
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221
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222 def CheckDeclType(self):
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223 self.cur.execute("insert into test(x) values (?)", ("xxx",))
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224 self.cur.execute("select x from test")
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225 val = self.cur.fetchone()[0]
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226 self.failUnlessEqual(val, "[xxx]")
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227
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228 def CheckNone(self):
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229 self.cur.execute("insert into test(x) values (?)", (None,))
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230 self.cur.execute("select x from test")
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231 val = self.cur.fetchone()[0]
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232 self.failUnlessEqual(val, None)
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233
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234 def CheckColName(self):
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235 self.cur.execute("insert into test(x) values (?)", ("xxx",))
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236 self.cur.execute('select x as "x [bar]" from test')
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237 val = self.cur.fetchone()[0]
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238 self.failUnlessEqual(val, "<xxx>")
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239
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240 # Check if the stripping of colnames works. Everything after the first
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241 # whitespace should be stripped.
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242 self.failUnlessEqual(self.cur.description[0][0], "x")
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243
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244 def CheckCursorDescriptionNoRow(self):
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245 """
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246 cursor.description should at least provide the column name(s), even if
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247 no row returned.
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248 """
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249 self.cur.execute("select * from test where 0 = 1")
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250 self.assert_(self.cur.description[0][0] == "x")
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251
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252 class ObjectAdaptationTests(unittest.TestCase):
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253 def cast(obj):
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254 return float(obj)
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255 cast = staticmethod(cast)
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256
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257 def setUp(self):
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258 self.con = sqlite.connect(":memory:")
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259 try:
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260 del sqlite.adapters[int]
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261 except:
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262 pass
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263 sqlite.register_adapter(int, ObjectAdaptationTests.cast)
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264 self.cur = self.con.cursor()
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265
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266 def tearDown(self):
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267 del sqlite.adapters[(int, sqlite.PrepareProtocol)]
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268 self.cur.close()
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269 self.con.close()
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270
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271 def CheckCasterIsUsed(self):
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272 self.cur.execute("select ?", (4,))
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273 val = self.cur.fetchone()[0]
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274 self.failUnlessEqual(type(val), float)
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275
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276 class BinaryConverterTests(unittest.TestCase):
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277 def convert(s):
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278 return bz2.decompress(s)
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279 convert = staticmethod(convert)
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280
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281 def setUp(self):
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282 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES)
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283 sqlite.register_converter("bin", BinaryConverterTests.convert)
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284
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285 def tearDown(self):
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286 self.con.close()
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287
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288 def CheckBinaryInputForConverter(self):
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289 testdata = "abcdefg" * 10
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290 result = self.con.execute('select ? as "x [bin]"', (buffer(bz2.compress(testdata)),)).fetchone()[0]
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291 self.failUnlessEqual(testdata, result)
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292
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293 class DateTimeTests(unittest.TestCase):
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294 def setUp(self):
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295 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
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296 self.cur = self.con.cursor()
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297 self.cur.execute("create table test(d date, ts timestamp)")
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298
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299 def tearDown(self):
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300 self.cur.close()
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301 self.con.close()
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302
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303 def CheckSqliteDate(self):
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304 d = sqlite.Date(2004, 2, 14)
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305 self.cur.execute("insert into test(d) values (?)", (d,))
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306 self.cur.execute("select d from test")
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307 d2 = self.cur.fetchone()[0]
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308 self.failUnlessEqual(d, d2)
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309
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310 def CheckSqliteTimestamp(self):
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311 ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0)
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312 self.cur.execute("insert into test(ts) values (?)", (ts,))
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313 self.cur.execute("select ts from test")
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314 ts2 = self.cur.fetchone()[0]
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315 self.failUnlessEqual(ts, ts2)
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316
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317 def CheckSqlTimestamp(self):
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318 # The date functions are only available in SQLite version 3.1 or later
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319 if sqlite.sqlite_version_info < (3, 1):
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320 return
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321
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322 # SQLite's current_timestamp uses UTC time, while datetime.datetime.now() uses local time.
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323 now = datetime.datetime.now()
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324 self.cur.execute("insert into test(ts) values (current_timestamp)")
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325 self.cur.execute("select ts from test")
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326 ts = self.cur.fetchone()[0]
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327 self.failUnlessEqual(type(ts), datetime.datetime)
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328 self.failUnlessEqual(ts.year, now.year)
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329
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330 def CheckDateTimeSubSeconds(self):
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331 ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0, 500000)
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332 self.cur.execute("insert into test(ts) values (?)", (ts,))
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333 self.cur.execute("select ts from test")
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334 ts2 = self.cur.fetchone()[0]
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335 self.failUnlessEqual(ts, ts2)
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336
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337 def suite():
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338 sqlite_type_suite = unittest.makeSuite(SqliteTypeTests, "Check")
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339 decltypes_type_suite = unittest.makeSuite(DeclTypesTests, "Check")
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340 colnames_type_suite = unittest.makeSuite(ColNamesTests, "Check")
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341 adaptation_suite = unittest.makeSuite(ObjectAdaptationTests, "Check")
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342 bin_suite = unittest.makeSuite(BinaryConverterTests, "Check")
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343 date_suite = unittest.makeSuite(DateTimeTests, "Check")
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344 return unittest.TestSuite((sqlite_type_suite, decltypes_type_suite, colnames_type_suite, adaptation_suite, bin_suite, date_suite))
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345
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346 def test():
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347 runner = unittest.TextTestRunner()
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348 runner.run(suite())
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349
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350 if __name__ == "__main__":
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351 test()