#-*- coding: ISO-8859-1 -*-
# pysqlite2/test/factory.py: tests for the various factories in pysqlite
#
# Copyright (C) 2005-2007 Gerhard H�ng <[email protected]>
#
# 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
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.assertTrue(isinstance(self.con,
MyConnection),
"connection is not instance of 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(factory=MyCursor)
self.assertTrue(isinstance(cur,
MyCursor),
"cursor is not instance of MyCursor")
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.assertTrue(isinstance(row,
dict),
"row is not instance of 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.assertTrue(isinstance(row,
list),
"row is not instance of list")
def CheckSqliteRowIndex(self):
self.con.row_factory = sqlite.Row
row = self.con.execute("select 1 as a, 2 as b").fetchone()
self.assertTrue(isinstance(row,
sqlite.Row),
"row is not instance of sqlite.Row")
col1, col2 = row["a"], row["b"]
self.assertTrue(col1 == 1, "by name: wrong result for column 'a'")
self.assertTrue(col2 == 2, "by name: wrong result for column 'a'")
col1, col2 = row["A"], row["B"]
self.assertTrue(col1 == 1, "by name: wrong result for column 'A'")
self.assertTrue(col2 == 2, "by name: wrong result for column 'B'")
col1, col2 = row[0], row[1]
self.assertTrue(col1 == 1, "by index: wrong result for column 0")
self.assertTrue(col2 == 2, "by index: wrong result for column 1")
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)
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.assertTrue(row_1 == row_1)
self.assertTrue(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 tearDown(self):
self.con.close()
class TextFactoryTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
def CheckUnicode(self):
austria = unicode("�terreich", "latin1")
row = self.con.execute("select ?", (austria,)).fetchone()
self.assertTrue(type(row[0]) == unicode, "type of row[0] must be unicode")
def CheckString(self):
self.con.text_factory = str
austria = unicode("�terreich", "latin1")
row = self.con.execute("select ?", (austria,)).fetchone()
self.assertTrue(type(row[0]) == str, "type of row[0] must be str")
self.assertTrue(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("�terreich", "latin1")
row = self.con.execute("select ?", (austria.encode("latin1"),)).fetchone()
self.assertTrue(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("�terreich", "latin1")
germany = unicode("Deutchland")
a_row = self.con.execute("select ?", (austria,)).fetchone()
d_row = self.con.execute("select ?", (germany,)).fetchone()
self.assertTrue(type(a_row[0]) == unicode, "type of non-ASCII row must be unicode")
self.assertTrue(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 an 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'��)
row = self.con.execute("select value from test").fetchone()
self.assertIs(type(row[0]), unicode)
self.assertEqual(row[0], u"�00�
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()
|
