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c21e0566b2
until Gerhard has time to fully debug the issue. This affects versions before 3.2.1 (possibly only versions earlier than 3.1.3). Based on discussion on python-checkins.
117 lines
4.2 KiB
Python
117 lines
4.2 KiB
Python
#-*- coding: ISO-8859-1 -*-
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# pysqlite2/test/hooks.py: tests for various SQLite-specific hooks
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#
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# Copyright (C) 2006 Gerhard Häring <gh@ghaering.de>
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#
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# This file is part of pysqlite.
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#
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# This software is provided 'as-is', without any express or implied
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# warranty. In no event will the authors be held liable for any damages
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# arising from the use of this software.
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#
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# Permission is granted to anyone to use this software for any purpose,
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# including commercial applications, and to alter it and redistribute it
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# freely, subject to the following restrictions:
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#
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# 1. The origin of this software must not be misrepresented; you must not
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# claim that you wrote the original software. If you use this software
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# in a product, an acknowledgment in the product documentation would be
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# appreciated but is not required.
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# 2. Altered source versions must be plainly marked as such, and must not be
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# misrepresented as being the original software.
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# 3. This notice may not be removed or altered from any source distribution.
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import os, unittest
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import sqlite3 as sqlite
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class CollationTests(unittest.TestCase):
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def setUp(self):
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pass
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def tearDown(self):
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pass
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def CheckCreateCollationNotCallable(self):
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con = sqlite.connect(":memory:")
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try:
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con.create_collation("X", 42)
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self.fail("should have raised a TypeError")
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except TypeError, e:
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self.failUnlessEqual(e.args[0], "parameter must be callable")
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def CheckCreateCollationNotAscii(self):
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con = sqlite.connect(":memory:")
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try:
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con.create_collation("collä", cmp)
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self.fail("should have raised a ProgrammingError")
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except sqlite.ProgrammingError, e:
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pass
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def CheckCollationIsUsed(self):
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if sqlite.version_info < (3, 2, 1): # old SQLite versions crash on this test
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return
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def mycoll(x, y):
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# reverse order
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return -cmp(x, y)
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con = sqlite.connect(":memory:")
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con.create_collation("mycoll", mycoll)
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sql = """
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select x from (
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select 'a' as x
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union
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select 'b' as x
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union
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select 'c' as x
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) order by x collate mycoll
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"""
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result = con.execute(sql).fetchall()
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if result[0][0] != "c" or result[1][0] != "b" or result[2][0] != "a":
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self.fail("the expected order was not returned")
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con.create_collation("mycoll", None)
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try:
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result = con.execute(sql).fetchall()
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self.fail("should have raised an OperationalError")
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except sqlite.OperationalError, e:
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self.failUnlessEqual(e.args[0].lower(), "no such collation sequence: mycoll")
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def CheckCollationRegisterTwice(self):
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"""
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Register two different collation functions under the same name.
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Verify that the last one is actually used.
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"""
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con = sqlite.connect(":memory:")
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con.create_collation("mycoll", cmp)
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con.create_collation("mycoll", lambda x, y: -cmp(x, y))
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result = con.execute("""
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select x from (select 'a' as x union select 'b' as x) order by x collate mycoll
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""").fetchall()
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if result[0][0] != 'b' or result[1][0] != 'a':
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self.fail("wrong collation function is used")
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def CheckDeregisterCollation(self):
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"""
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Register a collation, then deregister it. Make sure an error is raised if we try
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to use it.
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"""
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con = sqlite.connect(":memory:")
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con.create_collation("mycoll", cmp)
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con.create_collation("mycoll", None)
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try:
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con.execute("select 'a' as x union select 'b' as x order by x collate mycoll")
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self.fail("should have raised an OperationalError")
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except sqlite.OperationalError, e:
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if not e.args[0].startswith("no such collation sequence"):
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self.fail("wrong OperationalError raised")
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def suite():
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collation_suite = unittest.makeSuite(CollationTests, "Check")
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return unittest.TestSuite((collation_suite,))
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def test():
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runner = unittest.TextTestRunner()
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runner.run(suite())
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if __name__ == "__main__":
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test()
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