Mercurial > cpython-lru_cache-weakref

annotate Lib/sqlite3/test/types.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 ff040880d1be
children 04d3ae52ff73
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 # pysqlite2/test/types.py: tests for type conversion and detection
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3 #
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4 # Copyright (C) 2005-2007 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
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24 import datetime
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25 import unittest
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26 import sqlite3 as sqlite
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27 try:
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28 import zlib
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29 except ImportError:
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30 zlib = None
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31
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32
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33 class SqliteTypeTests(unittest.TestCase):
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34 def setUp(self):
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35 self.con = sqlite.connect(":memory:")
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36 self.cur = self.con.cursor()
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37 self.cur.execute("create table test(i integer, s varchar, f number, b blob)")
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38
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39 def tearDown(self):
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40 self.cur.close()
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41 self.con.close()
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42
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43 def CheckString(self):
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44 self.cur.execute("insert into test(s) values (?)", (u"Österreich",))
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45 self.cur.execute("select s from test")
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46 row = self.cur.fetchone()
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47 self.assertEqual(row[0], u"Österreich")
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48
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49 def CheckSmallInt(self):
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50 self.cur.execute("insert into test(i) values (?)", (42,))
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51 self.cur.execute("select i from test")
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52 row = self.cur.fetchone()
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53 self.assertEqual(row[0], 42)
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54
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55 def CheckLargeInt(self):
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56 num = 2**40
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57 self.cur.execute("insert into test(i) values (?)", (num,))
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58 self.cur.execute("select i from test")
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59 row = self.cur.fetchone()
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60 self.assertEqual(row[0], num)
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61
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62 def CheckFloat(self):
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63 val = 3.14
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64 self.cur.execute("insert into test(f) values (?)", (val,))
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65 self.cur.execute("select f from test")
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66 row = self.cur.fetchone()
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67 self.assertEqual(row[0], val)
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68
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69 def CheckBlob(self):
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70 val = buffer("Guglhupf")
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71 self.cur.execute("insert into test(b) values (?)", (val,))
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72 self.cur.execute("select b from test")
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73 row = self.cur.fetchone()
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74 self.assertEqual(row[0], val)
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75
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76 def CheckUnicodeExecute(self):
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77 self.cur.execute(u"select 'Österreich'")
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78 row = self.cur.fetchone()
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79 self.assertEqual(row[0], u"Österreich")
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80
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81 class DeclTypesTests(unittest.TestCase):
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82 class Foo:
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83 def __init__(self, _val):
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84 self.val = _val
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85
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86 def __cmp__(self, other):
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87 if not isinstance(other, DeclTypesTests.Foo):
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88 raise ValueError
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89 if self.val == other.val:
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90 return 0
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91 else:
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92 return 1
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93
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94 def __conform__(self, protocol):
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95 if protocol is sqlite.PrepareProtocol:
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96 return self.val
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97 else:
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98 return None
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99
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100 def __str__(self):
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101 return "<%s>" % self.val
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102
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103 def setUp(self):
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104 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
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105 self.cur = self.con.cursor()
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106 self.cur.execute("create table test(i int, s str, f float, b bool, u unicode, foo foo, bin blob, n1 number, n2 number(5))")
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107
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108 # override float, make them always return the same number
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109 sqlite.converters["FLOAT"] = lambda x: 47.2
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110
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111 # and implement two custom ones
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112 sqlite.converters["BOOL"] = lambda x: bool(int(x))
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113 sqlite.converters["FOO"] = DeclTypesTests.Foo
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114 sqlite.converters["WRONG"] = lambda x: "WRONG"
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115 sqlite.converters["NUMBER"] = float
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116
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117 def tearDown(self):
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118 del sqlite.converters["FLOAT"]
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119 del sqlite.converters["BOOL"]
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120 del sqlite.converters["FOO"]
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121 del sqlite.converters["NUMBER"]
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122 self.cur.close()
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123 self.con.close()
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124
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125 def CheckString(self):
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126 # default
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127 self.cur.execute("insert into test(s) values (?)", ("foo",))
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128 self.cur.execute('select s as "s [WRONG]" from test')
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129 row = self.cur.fetchone()
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130 self.assertEqual(row[0], "foo")
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131
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132 def CheckSmallInt(self):
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133 # default
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134 self.cur.execute("insert into test(i) values (?)", (42,))
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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.assertEqual(row[0], 42)
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138
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139 def CheckLargeInt(self):
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140 # default
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141 num = 2**40
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142 self.cur.execute("insert into test(i) values (?)", (num,))
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143 self.cur.execute("select i from test")
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144 row = self.cur.fetchone()
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145 self.assertEqual(row[0], num)
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146
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147 def CheckFloat(self):
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148 # custom
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149 val = 3.14
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150 self.cur.execute("insert into test(f) values (?)", (val,))
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151 self.cur.execute("select f from test")
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152 row = self.cur.fetchone()
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153 self.assertEqual(row[0], 47.2)
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154
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155 def CheckBool(self):
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156 # custom
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157 self.cur.execute("insert into test(b) values (?)", (False,))
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158 self.cur.execute("select b from test")
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159 row = self.cur.fetchone()
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160 self.assertEqual(row[0], False)
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161
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162 self.cur.execute("delete from test")
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163 self.cur.execute("insert into test(b) values (?)", (True,))
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164 self.cur.execute("select b from test")
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165 row = self.cur.fetchone()
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166 self.assertEqual(row[0], True)
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167
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168 def CheckUnicode(self):
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169 # default
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170 val = u"\xd6sterreich"
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171 self.cur.execute("insert into test(u) values (?)", (val,))
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172 self.cur.execute("select u from test")
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173 row = self.cur.fetchone()
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174 self.assertEqual(row[0], val)
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175
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176 def CheckFoo(self):
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177 val = DeclTypesTests.Foo("bla")
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178 self.cur.execute("insert into test(foo) values (?)", (val,))
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179 self.cur.execute("select foo from test")
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180 row = self.cur.fetchone()
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181 self.assertEqual(row[0], val)
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182
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183 def CheckUnsupportedSeq(self):
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184 class Bar: pass
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185 val = Bar()
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186 try:
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187 self.cur.execute("insert into test(f) values (?)", (val,))
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188 self.fail("should have raised an InterfaceError")
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189 except sqlite.InterfaceError:
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190 pass
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191 except:
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192 self.fail("should have raised an InterfaceError")
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193
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194 def CheckUnsupportedDict(self):
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195 class Bar: pass
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196 val = Bar()
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197 try:
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198 self.cur.execute("insert into test(f) values (:val)", {"val": val})
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199 self.fail("should have raised an InterfaceError")
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200 except sqlite.InterfaceError:
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201 pass
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202 except:
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203 self.fail("should have raised an InterfaceError")
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204
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205 def CheckBlob(self):
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206 # default
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207 val = buffer("Guglhupf")
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208 self.cur.execute("insert into test(bin) values (?)", (val,))
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209 self.cur.execute("select bin from test")
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210 row = self.cur.fetchone()
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211 self.assertEqual(row[0], val)
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212
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213 def CheckNumber1(self):
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214 self.cur.execute("insert into test(n1) values (5)")
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215 value = self.cur.execute("select n1 from test").fetchone()[0]
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216 # if the converter is not used, it's an int instead of a float
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217 self.assertEqual(type(value), float)
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218
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219 def CheckNumber2(self):
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220 """Checks wether converter names are cut off at '(' characters"""
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221 self.cur.execute("insert into test(n2) values (5)")
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222 value = self.cur.execute("select n2 from test").fetchone()[0]
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223 # if the converter is not used, it's an int instead of a float
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224 self.assertEqual(type(value), float)
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225
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226 class ColNamesTests(unittest.TestCase):
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227 def setUp(self):
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228 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES)
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229 self.cur = self.con.cursor()
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230 self.cur.execute("create table test(x foo)")
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231
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232 sqlite.converters["FOO"] = lambda x: "[%s]" % x
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233 sqlite.converters["BAR"] = lambda x: "<%s>" % x
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234 sqlite.converters["EXC"] = lambda x: 5 // 0
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235 sqlite.converters["B1B1"] = lambda x: "MARKER"
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236
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237 def tearDown(self):
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238 del sqlite.converters["FOO"]
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239 del sqlite.converters["BAR"]
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240 del sqlite.converters["EXC"]
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241 del sqlite.converters["B1B1"]
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242 self.cur.close()
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243 self.con.close()
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244
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245 def CheckDeclTypeNotUsed(self):
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246 """
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247 Assures that the declared type is not used when PARSE_DECLTYPES
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248 is not set.
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249 """
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250 self.cur.execute("insert into test(x) values (?)", ("xxx",))
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251 self.cur.execute("select x from test")
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252 val = self.cur.fetchone()[0]
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253 self.assertEqual(val, "xxx")
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254
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255 def CheckNone(self):
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256 self.cur.execute("insert into test(x) values (?)", (None,))
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257 self.cur.execute("select x from test")
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258 val = self.cur.fetchone()[0]
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259 self.assertEqual(val, None)
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260
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261 def CheckColName(self):
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262 self.cur.execute("insert into test(x) values (?)", ("xxx",))
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263 self.cur.execute('select x as "x [bar]" from test')
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264 val = self.cur.fetchone()[0]
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265 self.assertEqual(val, "<xxx>")
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266
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267 # Check if the stripping of colnames works. Everything after the first
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268 # whitespace should be stripped.
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269 self.assertEqual(self.cur.description[0][0], "x")
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270
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271 def CheckCaseInConverterName(self):
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272 self.cur.execute("""select 'other' as "x [b1b1]\"""")
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273 val = self.cur.fetchone()[0]
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274 self.assertEqual(val, "MARKER")
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275
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276 def CheckCursorDescriptionNoRow(self):
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277 """
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278 cursor.description should at least provide the column name(s), even if
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279 no row returned.
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280 """
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281 self.cur.execute("select * from test where 0 = 1")
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282 self.assert_(self.cur.description[0][0] == "x")
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283
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284 class ObjectAdaptationTests(unittest.TestCase):
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285 def cast(obj):
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286 return float(obj)
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287 cast = staticmethod(cast)
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288
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289 def setUp(self):
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290 self.con = sqlite.connect(":memory:")
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291 try:
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292 del sqlite.adapters[int]
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293 except:
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294 pass
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295 sqlite.register_adapter(int, ObjectAdaptationTests.cast)
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296 self.cur = self.con.cursor()
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297
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298 def tearDown(self):
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299 del sqlite.adapters[(int, sqlite.PrepareProtocol)]
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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 CheckCasterIsUsed(self):
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304 self.cur.execute("select ?", (4,))
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305 val = self.cur.fetchone()[0]
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306 self.assertEqual(type(val), float)
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307
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308 @unittest.skipUnless(zlib, "requires zlib")
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309 class BinaryConverterTests(unittest.TestCase):
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310 def convert(s):
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311 return zlib.decompress(s)
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312 convert = staticmethod(convert)
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313
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314 def setUp(self):
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315 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES)
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316 sqlite.register_converter("bin", BinaryConverterTests.convert)
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317
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318 def tearDown(self):
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319 self.con.close()
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320
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321 def CheckBinaryInputForConverter(self):
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322 testdata = "abcdefg" * 10
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323 result = self.con.execute('select ? as "x [bin]"', (buffer(zlib.compress(testdata)),)).fetchone()[0]
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324 self.assertEqual(testdata, result)
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325
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326 class DateTimeTests(unittest.TestCase):
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327 def setUp(self):
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328 self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
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329 self.cur = self.con.cursor()
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330 self.cur.execute("create table test(d date, ts timestamp)")
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331
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332 def tearDown(self):
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333 self.cur.close()
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334 self.con.close()
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335
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336 def CheckSqliteDate(self):
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337 d = sqlite.Date(2004, 2, 14)
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338 self.cur.execute("insert into test(d) values (?)", (d,))
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339 self.cur.execute("select d from test")
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340 d2 = self.cur.fetchone()[0]
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341 self.assertEqual(d, d2)
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342
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343 def CheckSqliteTimestamp(self):
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344 ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0)
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345 self.cur.execute("insert into test(ts) values (?)", (ts,))
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346 self.cur.execute("select ts from test")
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347 ts2 = self.cur.fetchone()[0]
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348 self.assertEqual(ts, ts2)
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349
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350 def CheckSqlTimestamp(self):
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351 # The date functions are only available in SQLite version 3.1 or later
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352 if sqlite.sqlite_version_info < (3, 1):
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353 return
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354
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355 # SQLite's current_timestamp uses UTC time, while datetime.datetime.now() uses local time.
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356 now = datetime.datetime.now()
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357 self.cur.execute("insert into test(ts) values (current_timestamp)")
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358 self.cur.execute("select ts from test")
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359 ts = self.cur.fetchone()[0]
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360 self.assertEqual(type(ts), datetime.datetime)
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361 self.assertEqual(ts.year, now.year)
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362
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363 def CheckDateTimeSubSeconds(self):
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364 ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0, 500000)
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365 self.cur.execute("insert into test(ts) values (?)", (ts,))
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366 self.cur.execute("select ts from test")
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367 ts2 = self.cur.fetchone()[0]
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368 self.assertEqual(ts, ts2)
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369
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370 def CheckDateTimeSubSecondsFloatingPoint(self):
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371 ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0, 510241)
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372 self.cur.execute("insert into test(ts) values (?)", (ts,))
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373 self.cur.execute("select ts from test")
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374 ts2 = self.cur.fetchone()[0]
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375 self.assertEqual(ts, ts2)
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376
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377 def suite():
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378 sqlite_type_suite = unittest.makeSuite(SqliteTypeTests, "Check")
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379 decltypes_type_suite = unittest.makeSuite(DeclTypesTests, "Check")
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380 colnames_type_suite = unittest.makeSuite(ColNamesTests, "Check")
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381 adaptation_suite = unittest.makeSuite(ObjectAdaptationTests, "Check")
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382 bin_suite = unittest.makeSuite(BinaryConverterTests, "Check")
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383 date_suite = unittest.makeSuite(DateTimeTests, "Check")
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384 return unittest.TestSuite((sqlite_type_suite, decltypes_type_suite, colnames_type_suite, adaptation_suite, bin_suite, date_suite))
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385
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386 def test():
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387 runner = unittest.TextTestRunner()
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388 runner.run(suite())
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389
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390 if __name__ == "__main__":
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391 test()