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+#-*- 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()