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Diffstat (limited to 'lib/python2.7/sqlite3/test/factory.py')
-rw-r--r-- | lib/python2.7/sqlite3/test/factory.py | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/lib/python2.7/sqlite3/test/factory.py b/lib/python2.7/sqlite3/test/factory.py new file mode 100644 index 0000000..b9e9cd7 --- /dev/null +++ b/lib/python2.7/sqlite3/test/factory.py @@ -0,0 +1,285 @@ +#-*- coding: ISO-8859-1 -*- +# pysqlite2/test/factory.py: tests for the various factories in pysqlite +# +# Copyright (C) 2005-2007 Gerhard Häring <gh@ghaering.de> +# +# This file is part of pysqlite. +# +# This software is provided 'as-is', without any express or implied +# warranty. In no event will the authors be held liable for any damages +# arising from the use of this software. +# +# Permission is granted to anyone to use this software for any purpose, +# including commercial applications, and to alter it and redistribute it +# freely, subject to the following restrictions: +# +# 1. The origin of this software must not be misrepresented; you must not +# claim that you wrote the original software. If you use this software +# in a product, an acknowledgment in the product documentation would be +# appreciated but is not required. +# 2. Altered source versions must be plainly marked as such, and must not be +# misrepresented as being the original software. +# 3. This notice may not be removed or altered from any source distribution. + +import unittest +import sqlite3 as sqlite +from collections import Sequence + +class MyConnection(sqlite.Connection): + def __init__(self, *args, **kwargs): + sqlite.Connection.__init__(self, *args, **kwargs) + +def dict_factory(cursor, row): + d = {} + for idx, col in enumerate(cursor.description): + d[col[0]] = row[idx] + return d + +class MyCursor(sqlite.Cursor): + def __init__(self, *args, **kwargs): + sqlite.Cursor.__init__(self, *args, **kwargs) + self.row_factory = dict_factory + +class ConnectionFactoryTests(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:", factory=MyConnection) + + def tearDown(self): + self.con.close() + + def CheckIsInstance(self): + self.assertIsInstance(self.con, MyConnection) + +class CursorFactoryTests(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:") + + def tearDown(self): + self.con.close() + + def CheckIsInstance(self): + cur = self.con.cursor() + self.assertIsInstance(cur, sqlite.Cursor) + cur = self.con.cursor(MyCursor) + self.assertIsInstance(cur, MyCursor) + cur = self.con.cursor(factory=lambda con: MyCursor(con)) + self.assertIsInstance(cur, MyCursor) + + def CheckInvalidFactory(self): + # not a callable at all + self.assertRaises(TypeError, self.con.cursor, None) + # invalid callable with not exact one argument + self.assertRaises(TypeError, self.con.cursor, lambda: None) + # invalid callable returning non-cursor + self.assertRaises(TypeError, self.con.cursor, lambda con: None) + +class RowFactoryTestsBackwardsCompat(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:") + + def CheckIsProducedByFactory(self): + cur = self.con.cursor(factory=MyCursor) + cur.execute("select 4+5 as foo") + row = cur.fetchone() + self.assertIsInstance(row, dict) + cur.close() + + def tearDown(self): + self.con.close() + +class RowFactoryTests(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:") + + def CheckCustomFactory(self): + self.con.row_factory = lambda cur, row: list(row) + row = self.con.execute("select 1, 2").fetchone() + self.assertIsInstance(row, list) + + def CheckSqliteRowIndex(self): + self.con.row_factory = sqlite.Row + row = self.con.execute("select 1 as a, 2 as b").fetchone() + self.assertIsInstance(row, sqlite.Row) + + col1, col2 = row["a"], row["b"] + self.assertEqual(col1, 1, "by name: wrong result for column 'a'") + self.assertEqual(col2, 2, "by name: wrong result for column 'a'") + + col1, col2 = row["A"], row["B"] + self.assertEqual(col1, 1, "by name: wrong result for column 'A'") + self.assertEqual(col2, 2, "by name: wrong result for column 'B'") + + self.assertEqual(row[0], 1, "by index: wrong result for column 0") + self.assertEqual(row[0L], 1, "by index: wrong result for column 0") + self.assertEqual(row[1], 2, "by index: wrong result for column 1") + self.assertEqual(row[1L], 2, "by index: wrong result for column 1") + self.assertEqual(row[-1], 2, "by index: wrong result for column -1") + self.assertEqual(row[-1L], 2, "by index: wrong result for column -1") + self.assertEqual(row[-2], 1, "by index: wrong result for column -2") + self.assertEqual(row[-2L], 1, "by index: wrong result for column -2") + + with self.assertRaises(IndexError): + row['c'] + with self.assertRaises(IndexError): + row[2] + with self.assertRaises(IndexError): + row[2L] + with self.assertRaises(IndexError): + row[-3] + with self.assertRaises(IndexError): + row[-3L] + with self.assertRaises(IndexError): + row[2**1000] + + def CheckSqliteRowIter(self): + """Checks if the row object is iterable""" + self.con.row_factory = sqlite.Row + row = self.con.execute("select 1 as a, 2 as b").fetchone() + for col in row: + pass + + def CheckSqliteRowAsTuple(self): + """Checks if the row object can be converted to a tuple""" + self.con.row_factory = sqlite.Row + row = self.con.execute("select 1 as a, 2 as b").fetchone() + t = tuple(row) + self.assertEqual(t, (row['a'], row['b'])) + + def CheckSqliteRowAsDict(self): + """Checks if the row object can be correctly converted to a dictionary""" + self.con.row_factory = sqlite.Row + row = self.con.execute("select 1 as a, 2 as b").fetchone() + d = dict(row) + self.assertEqual(d["a"], row["a"]) + self.assertEqual(d["b"], row["b"]) + + def CheckSqliteRowHashCmp(self): + """Checks if the row object compares and hashes correctly""" + self.con.row_factory = sqlite.Row + row_1 = self.con.execute("select 1 as a, 2 as b").fetchone() + row_2 = self.con.execute("select 1 as a, 2 as b").fetchone() + row_3 = self.con.execute("select 1 as a, 3 as b").fetchone() + + self.assertEqual(row_1, row_1) + self.assertEqual(row_1, row_2) + self.assertTrue(row_2 != row_3) + + self.assertFalse(row_1 != row_1) + self.assertFalse(row_1 != row_2) + self.assertFalse(row_2 == row_3) + + self.assertEqual(row_1, row_2) + self.assertEqual(hash(row_1), hash(row_2)) + self.assertNotEqual(row_1, row_3) + self.assertNotEqual(hash(row_1), hash(row_3)) + + def CheckSqliteRowAsSequence(self): + """ Checks if the row object can act like a sequence """ + self.con.row_factory = sqlite.Row + row = self.con.execute("select 1 as a, 2 as b").fetchone() + + as_tuple = tuple(row) + self.assertEqual(list(reversed(row)), list(reversed(as_tuple))) + self.assertIsInstance(row, Sequence) + + def CheckFakeCursorClass(self): + # Issue #24257: Incorrect use of PyObject_IsInstance() caused + # segmentation fault. + # Issue #27861: Also applies for cursor factory. + class FakeCursor(str): + __class__ = sqlite.Cursor + self.con.row_factory = sqlite.Row + self.assertRaises(TypeError, self.con.cursor, FakeCursor) + self.assertRaises(TypeError, sqlite.Row, FakeCursor(), ()) + + def tearDown(self): + self.con.close() + +class TextFactoryTests(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:") + + def CheckUnicode(self): + austria = unicode("Österreich", "latin1") + row = self.con.execute("select ?", (austria,)).fetchone() + self.assertEqual(type(row[0]), unicode, "type of row[0] must be unicode") + + def CheckString(self): + self.con.text_factory = str + austria = unicode("Österreich", "latin1") + row = self.con.execute("select ?", (austria,)).fetchone() + self.assertEqual(type(row[0]), str, "type of row[0] must be str") + self.assertEqual(row[0], austria.encode("utf-8"), "column must equal original data in UTF-8") + + def CheckCustom(self): + self.con.text_factory = lambda x: unicode(x, "utf-8", "ignore") + austria = unicode("Österreich", "latin1") + row = self.con.execute("select ?", (austria.encode("latin1"),)).fetchone() + self.assertEqual(type(row[0]), unicode, "type of row[0] must be unicode") + self.assertTrue(row[0].endswith(u"reich"), "column must contain original data") + + def CheckOptimizedUnicode(self): + self.con.text_factory = sqlite.OptimizedUnicode + austria = unicode("Österreich", "latin1") + germany = unicode("Deutchland") + a_row = self.con.execute("select ?", (austria,)).fetchone() + d_row = self.con.execute("select ?", (germany,)).fetchone() + self.assertEqual(type(a_row[0]), unicode, "type of non-ASCII row must be unicode") + self.assertEqual(type(d_row[0]), str, "type of ASCII-only row must be str") + + def tearDown(self): + self.con.close() + +class TextFactoryTestsWithEmbeddedZeroBytes(unittest.TestCase): + def setUp(self): + self.con = sqlite.connect(":memory:") + self.con.execute("create table test (value text)") + self.con.execute("insert into test (value) values (?)", ("a\x00b",)) + + def CheckString(self): + # text_factory defaults to unicode + row = self.con.execute("select value from test").fetchone() + self.assertIs(type(row[0]), unicode) + self.assertEqual(row[0], "a\x00b") + + def CheckCustom(self): + # A custom factory should receive a str argument + self.con.text_factory = lambda x: x + row = self.con.execute("select value from test").fetchone() + self.assertIs(type(row[0]), str) + self.assertEqual(row[0], "a\x00b") + + def CheckOptimizedUnicodeAsString(self): + # ASCII -> str argument + self.con.text_factory = sqlite.OptimizedUnicode + row = self.con.execute("select value from test").fetchone() + self.assertIs(type(row[0]), str) + self.assertEqual(row[0], "a\x00b") + + def CheckOptimizedUnicodeAsUnicode(self): + # Non-ASCII -> unicode argument + self.con.text_factory = sqlite.OptimizedUnicode + self.con.execute("delete from test") + self.con.execute("insert into test (value) values (?)", (u'ä\0ö',)) + row = self.con.execute("select value from test").fetchone() + self.assertIs(type(row[0]), unicode) + self.assertEqual(row[0], u"ä\x00ö") + + def tearDown(self): + self.con.close() + +def suite(): + connection_suite = unittest.makeSuite(ConnectionFactoryTests, "Check") + cursor_suite = unittest.makeSuite(CursorFactoryTests, "Check") + row_suite_compat = unittest.makeSuite(RowFactoryTestsBackwardsCompat, "Check") + row_suite = unittest.makeSuite(RowFactoryTests, "Check") + text_suite = unittest.makeSuite(TextFactoryTests, "Check") + text_zero_bytes_suite = unittest.makeSuite(TextFactoryTestsWithEmbeddedZeroBytes, "Check") + return unittest.TestSuite((connection_suite, cursor_suite, row_suite_compat, row_suite, text_suite, text_zero_bytes_suite)) + +def test(): + runner = unittest.TextTestRunner() + runner.run(suite()) + +if __name__ == "__main__": + test() |