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772 lines
26 KiB
Python
772 lines
26 KiB
Python
#-*- coding: ISO-8859-1 -*-
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# pysqlite2/test/dbapi.py: tests for DB-API compliance
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#
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# Copyright (C) 2004-2007 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 unittest
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import sys
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import threading
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import sqlite3 as sqlite
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class ModuleTests(unittest.TestCase):
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def CheckAPILevel(self):
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self.assertEqual(sqlite.apilevel, "2.0",
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"apilevel is %s, should be 2.0" % sqlite.apilevel)
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def CheckThreadSafety(self):
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self.assertEqual(sqlite.threadsafety, 1,
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"threadsafety is %d, should be 1" % sqlite.threadsafety)
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def CheckParamStyle(self):
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self.assertEqual(sqlite.paramstyle, "qmark",
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"paramstyle is '%s', should be 'qmark'" %
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sqlite.paramstyle)
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def CheckWarning(self):
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self.assert_(issubclass(sqlite.Warning, StandardError),
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"Warning is not a subclass of StandardError")
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def CheckError(self):
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self.failUnless(issubclass(sqlite.Error, StandardError),
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"Error is not a subclass of StandardError")
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def CheckInterfaceError(self):
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self.failUnless(issubclass(sqlite.InterfaceError, sqlite.Error),
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"InterfaceError is not a subclass of Error")
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def CheckDatabaseError(self):
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self.failUnless(issubclass(sqlite.DatabaseError, sqlite.Error),
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"DatabaseError is not a subclass of Error")
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def CheckDataError(self):
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self.failUnless(issubclass(sqlite.DataError, sqlite.DatabaseError),
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"DataError is not a subclass of DatabaseError")
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def CheckOperationalError(self):
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self.failUnless(issubclass(sqlite.OperationalError, sqlite.DatabaseError),
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"OperationalError is not a subclass of DatabaseError")
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def CheckIntegrityError(self):
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self.failUnless(issubclass(sqlite.IntegrityError, sqlite.DatabaseError),
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"IntegrityError is not a subclass of DatabaseError")
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def CheckInternalError(self):
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self.failUnless(issubclass(sqlite.InternalError, sqlite.DatabaseError),
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"InternalError is not a subclass of DatabaseError")
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def CheckProgrammingError(self):
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self.failUnless(issubclass(sqlite.ProgrammingError, sqlite.DatabaseError),
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"ProgrammingError is not a subclass of DatabaseError")
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def CheckNotSupportedError(self):
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self.failUnless(issubclass(sqlite.NotSupportedError,
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sqlite.DatabaseError),
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"NotSupportedError is not a subclass of DatabaseError")
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class ConnectionTests(unittest.TestCase):
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def setUp(self):
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self.cx = sqlite.connect(":memory:")
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cu = self.cx.cursor()
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cu.execute("create table test(id integer primary key, name text)")
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cu.execute("insert into test(name) values (?)", ("foo",))
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def tearDown(self):
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self.cx.close()
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def CheckCommit(self):
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self.cx.commit()
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def CheckCommitAfterNoChanges(self):
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"""
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A commit should also work when no changes were made to the database.
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"""
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self.cx.commit()
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self.cx.commit()
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def CheckRollback(self):
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self.cx.rollback()
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def CheckRollbackAfterNoChanges(self):
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"""
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A rollback should also work when no changes were made to the database.
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"""
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self.cx.rollback()
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self.cx.rollback()
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def CheckCursor(self):
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cu = self.cx.cursor()
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def CheckFailedOpen(self):
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YOU_CANNOT_OPEN_THIS = "/foo/bar/bla/23534/mydb.db"
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try:
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con = sqlite.connect(YOU_CANNOT_OPEN_THIS)
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except sqlite.OperationalError:
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return
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self.fail("should have raised an OperationalError")
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def CheckClose(self):
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self.cx.close()
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def CheckExceptions(self):
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# Optional DB-API extension.
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self.failUnlessEqual(self.cx.Warning, sqlite.Warning)
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self.failUnlessEqual(self.cx.Error, sqlite.Error)
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self.failUnlessEqual(self.cx.InterfaceError, sqlite.InterfaceError)
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self.failUnlessEqual(self.cx.DatabaseError, sqlite.DatabaseError)
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self.failUnlessEqual(self.cx.DataError, sqlite.DataError)
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self.failUnlessEqual(self.cx.OperationalError, sqlite.OperationalError)
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self.failUnlessEqual(self.cx.IntegrityError, sqlite.IntegrityError)
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self.failUnlessEqual(self.cx.InternalError, sqlite.InternalError)
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self.failUnlessEqual(self.cx.ProgrammingError, sqlite.ProgrammingError)
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self.failUnlessEqual(self.cx.NotSupportedError, sqlite.NotSupportedError)
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class CursorTests(unittest.TestCase):
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def setUp(self):
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self.cx = sqlite.connect(":memory:")
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self.cu = self.cx.cursor()
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self.cu.execute("create table test(id integer primary key, name text, income number)")
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self.cu.execute("insert into test(name) values (?)", ("foo",))
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def tearDown(self):
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self.cu.close()
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self.cx.close()
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def CheckExecuteNoArgs(self):
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self.cu.execute("delete from test")
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def CheckExecuteIllegalSql(self):
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try:
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self.cu.execute("select asdf")
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self.fail("should have raised an OperationalError")
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except sqlite.OperationalError:
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return
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except:
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self.fail("raised wrong exception")
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def CheckExecuteTooMuchSql(self):
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try:
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self.cu.execute("select 5+4; select 4+5")
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self.fail("should have raised a Warning")
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except sqlite.Warning:
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return
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except:
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self.fail("raised wrong exception")
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def CheckExecuteTooMuchSql2(self):
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self.cu.execute("select 5+4; -- foo bar")
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def CheckExecuteTooMuchSql3(self):
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self.cu.execute("""
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select 5+4;
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/*
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foo
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*/
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""")
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def CheckExecuteWrongSqlArg(self):
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try:
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self.cu.execute(42)
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self.fail("should have raised a ValueError")
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except ValueError:
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return
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except:
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self.fail("raised wrong exception.")
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def CheckExecuteArgInt(self):
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self.cu.execute("insert into test(id) values (?)", (42,))
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def CheckExecuteArgFloat(self):
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self.cu.execute("insert into test(income) values (?)", (2500.32,))
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def CheckExecuteArgString(self):
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self.cu.execute("insert into test(name) values (?)", ("Hugo",))
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def CheckExecuteWrongNoOfArgs1(self):
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# too many parameters
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try:
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self.cu.execute("insert into test(id) values (?)", (17, "Egon"))
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckExecuteWrongNoOfArgs2(self):
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# too little parameters
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try:
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self.cu.execute("insert into test(id) values (?)")
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckExecuteWrongNoOfArgs3(self):
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# no parameters, parameters are needed
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try:
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self.cu.execute("insert into test(id) values (?)")
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckExecuteParamList(self):
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("select name from test where name=?", ["foo"])
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row = self.cu.fetchone()
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self.failUnlessEqual(row[0], "foo")
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def CheckExecuteParamSequence(self):
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class L(object):
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def __len__(self):
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return 1
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def __getitem__(self, x):
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assert x == 0
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return "foo"
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("select name from test where name=?", L())
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row = self.cu.fetchone()
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self.failUnlessEqual(row[0], "foo")
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def CheckExecuteDictMapping(self):
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("select name from test where name=:name", {"name": "foo"})
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row = self.cu.fetchone()
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self.failUnlessEqual(row[0], "foo")
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def CheckExecuteDictMapping_Mapping(self):
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# Test only works with Python 2.5 or later
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if sys.version_info < (2, 5, 0):
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return
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class D(dict):
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def __missing__(self, key):
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return "foo"
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("select name from test where name=:name", D())
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row = self.cu.fetchone()
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self.failUnlessEqual(row[0], "foo")
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def CheckExecuteDictMappingTooLittleArgs(self):
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self.cu.execute("insert into test(name) values ('foo')")
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try:
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self.cu.execute("select name from test where name=:name and id=:id", {"name": "foo"})
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckExecuteDictMappingNoArgs(self):
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self.cu.execute("insert into test(name) values ('foo')")
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try:
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self.cu.execute("select name from test where name=:name")
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckExecuteDictMappingUnnamed(self):
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self.cu.execute("insert into test(name) values ('foo')")
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try:
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self.cu.execute("select name from test where name=?", {"name": "foo"})
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self.fail("should have raised ProgrammingError")
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except sqlite.ProgrammingError:
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pass
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def CheckClose(self):
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self.cu.close()
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def CheckRowcountExecute(self):
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self.cu.execute("delete from test")
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("update test set name='bar'")
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self.failUnlessEqual(self.cu.rowcount, 2)
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def CheckRowcountExecutemany(self):
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self.cu.execute("delete from test")
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self.cu.executemany("insert into test(name) values (?)", [(1,), (2,), (3,)])
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self.failUnlessEqual(self.cu.rowcount, 3)
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def CheckTotalChanges(self):
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self.cu.execute("insert into test(name) values ('foo')")
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self.cu.execute("insert into test(name) values ('foo')")
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if self.cx.total_changes < 2:
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self.fail("total changes reported wrong value")
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# Checks for executemany:
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# Sequences are required by the DB-API, iterators
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# enhancements in pysqlite.
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def CheckExecuteManySequence(self):
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self.cu.executemany("insert into test(income) values (?)", [(x,) for x in range(100, 110)])
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def CheckExecuteManyIterator(self):
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class MyIter:
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def __init__(self):
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self.value = 5
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def next(self):
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if self.value == 10:
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raise StopIteration
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else:
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self.value += 1
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return (self.value,)
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self.cu.executemany("insert into test(income) values (?)", MyIter())
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def CheckExecuteManyGenerator(self):
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def mygen():
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for i in range(5):
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yield (i,)
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self.cu.executemany("insert into test(income) values (?)", mygen())
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def CheckExecuteManyWrongSqlArg(self):
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try:
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self.cu.executemany(42, [(3,)])
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self.fail("should have raised a ValueError")
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except ValueError:
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return
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except:
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self.fail("raised wrong exception.")
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def CheckExecuteManySelect(self):
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try:
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self.cu.executemany("select ?", [(3,)])
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self.fail("should have raised a ProgrammingError")
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except sqlite.ProgrammingError:
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return
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except:
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self.fail("raised wrong exception.")
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def CheckExecuteManyNotIterable(self):
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try:
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self.cu.executemany("insert into test(income) values (?)", 42)
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self.fail("should have raised a TypeError")
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except TypeError:
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return
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except Exception, e:
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print "raised", e.__class__
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self.fail("raised wrong exception.")
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def CheckFetchIter(self):
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# Optional DB-API extension.
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self.cu.execute("delete from test")
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self.cu.execute("insert into test(id) values (?)", (5,))
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self.cu.execute("insert into test(id) values (?)", (6,))
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self.cu.execute("select id from test order by id")
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lst = []
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for row in self.cu:
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lst.append(row[0])
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self.failUnlessEqual(lst[0], 5)
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self.failUnlessEqual(lst[1], 6)
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def CheckFetchone(self):
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self.cu.execute("select name from test")
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row = self.cu.fetchone()
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self.failUnlessEqual(row[0], "foo")
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row = self.cu.fetchone()
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self.failUnlessEqual(row, None)
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def CheckFetchoneNoStatement(self):
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cur = self.cx.cursor()
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row = cur.fetchone()
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self.failUnlessEqual(row, None)
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def CheckArraySize(self):
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# must default ot 1
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self.failUnlessEqual(self.cu.arraysize, 1)
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# now set to 2
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self.cu.arraysize = 2
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# now make the query return 3 rows
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self.cu.execute("delete from test")
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self.cu.execute("insert into test(name) values ('A')")
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self.cu.execute("insert into test(name) values ('B')")
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self.cu.execute("insert into test(name) values ('C')")
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self.cu.execute("select name from test")
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res = self.cu.fetchmany()
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self.failUnlessEqual(len(res), 2)
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def CheckFetchmany(self):
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self.cu.execute("select name from test")
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res = self.cu.fetchmany(100)
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self.failUnlessEqual(len(res), 1)
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res = self.cu.fetchmany(100)
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self.failUnlessEqual(res, [])
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def CheckFetchmanyKwArg(self):
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"""Checks if fetchmany works with keyword arguments"""
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self.cu.execute("select name from test")
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res = self.cu.fetchmany(size=100)
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self.failUnlessEqual(len(res), 1)
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def CheckFetchall(self):
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self.cu.execute("select name from test")
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res = self.cu.fetchall()
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self.failUnlessEqual(len(res), 1)
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res = self.cu.fetchall()
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self.failUnlessEqual(res, [])
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def CheckSetinputsizes(self):
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self.cu.setinputsizes([3, 4, 5])
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def CheckSetoutputsize(self):
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self.cu.setoutputsize(5, 0)
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def CheckSetoutputsizeNoColumn(self):
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self.cu.setoutputsize(42)
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def CheckCursorConnection(self):
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# Optional DB-API extension.
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self.failUnlessEqual(self.cu.connection, self.cx)
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def CheckWrongCursorCallable(self):
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try:
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def f(): pass
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cur = self.cx.cursor(f)
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self.fail("should have raised a TypeError")
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except TypeError:
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return
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self.fail("should have raised a ValueError")
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def CheckCursorWrongClass(self):
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class Foo: pass
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foo = Foo()
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try:
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cur = sqlite.Cursor(foo)
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self.fail("should have raised a ValueError")
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except TypeError:
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pass
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class ThreadTests(unittest.TestCase):
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def setUp(self):
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self.con = sqlite.connect(":memory:")
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self.cur = self.con.cursor()
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self.cur.execute("create table test(id integer primary key, name text, bin binary, ratio number, ts timestamp)")
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def tearDown(self):
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self.cur.close()
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self.con.close()
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def CheckConCursor(self):
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def run(con, errors):
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try:
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cur = con.cursor()
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errors.append("did not raise ProgrammingError")
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return
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except sqlite.ProgrammingError:
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return
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except:
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errors.append("raised wrong exception")
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errors = []
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t = threading.Thread(target=run, kwargs={"con": self.con, "errors": errors})
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t.start()
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t.join()
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if len(errors) > 0:
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self.fail("\n".join(errors))
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def CheckConCommit(self):
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def run(con, errors):
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try:
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con.commit()
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errors.append("did not raise ProgrammingError")
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return
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except sqlite.ProgrammingError:
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return
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except:
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errors.append("raised wrong exception")
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errors = []
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t = threading.Thread(target=run, kwargs={"con": self.con, "errors": errors})
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t.start()
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t.join()
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if len(errors) > 0:
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self.fail("\n".join(errors))
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def CheckConRollback(self):
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def run(con, errors):
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try:
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con.rollback()
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errors.append("did not raise ProgrammingError")
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return
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except sqlite.ProgrammingError:
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return
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except:
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errors.append("raised wrong exception")
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errors = []
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t = threading.Thread(target=run, kwargs={"con": self.con, "errors": errors})
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t.start()
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t.join()
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if len(errors) > 0:
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self.fail("\n".join(errors))
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def CheckConClose(self):
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def run(con, errors):
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try:
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con.close()
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errors.append("did not raise ProgrammingError")
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|
return
|
|
except sqlite.ProgrammingError:
|
|
return
|
|
except:
|
|
errors.append("raised wrong exception")
|
|
|
|
errors = []
|
|
t = threading.Thread(target=run, kwargs={"con": self.con, "errors": errors})
|
|
t.start()
|
|
t.join()
|
|
if len(errors) > 0:
|
|
self.fail("\n".join(errors))
|
|
|
|
def CheckCurImplicitBegin(self):
|
|
def run(cur, errors):
|
|
try:
|
|
cur.execute("insert into test(name) values ('a')")
|
|
errors.append("did not raise ProgrammingError")
|
|
return
|
|
except sqlite.ProgrammingError:
|
|
return
|
|
except:
|
|
errors.append("raised wrong exception")
|
|
|
|
errors = []
|
|
t = threading.Thread(target=run, kwargs={"cur": self.cur, "errors": errors})
|
|
t.start()
|
|
t.join()
|
|
if len(errors) > 0:
|
|
self.fail("\n".join(errors))
|
|
|
|
def CheckCurClose(self):
|
|
def run(cur, errors):
|
|
try:
|
|
cur.close()
|
|
errors.append("did not raise ProgrammingError")
|
|
return
|
|
except sqlite.ProgrammingError:
|
|
return
|
|
except:
|
|
errors.append("raised wrong exception")
|
|
|
|
errors = []
|
|
t = threading.Thread(target=run, kwargs={"cur": self.cur, "errors": errors})
|
|
t.start()
|
|
t.join()
|
|
if len(errors) > 0:
|
|
self.fail("\n".join(errors))
|
|
|
|
def CheckCurExecute(self):
|
|
def run(cur, errors):
|
|
try:
|
|
cur.execute("select name from test")
|
|
errors.append("did not raise ProgrammingError")
|
|
return
|
|
except sqlite.ProgrammingError:
|
|
return
|
|
except:
|
|
errors.append("raised wrong exception")
|
|
|
|
errors = []
|
|
self.cur.execute("insert into test(name) values ('a')")
|
|
t = threading.Thread(target=run, kwargs={"cur": self.cur, "errors": errors})
|
|
t.start()
|
|
t.join()
|
|
if len(errors) > 0:
|
|
self.fail("\n".join(errors))
|
|
|
|
def CheckCurIterNext(self):
|
|
def run(cur, errors):
|
|
try:
|
|
row = cur.fetchone()
|
|
errors.append("did not raise ProgrammingError")
|
|
return
|
|
except sqlite.ProgrammingError:
|
|
return
|
|
except:
|
|
errors.append("raised wrong exception")
|
|
|
|
errors = []
|
|
self.cur.execute("insert into test(name) values ('a')")
|
|
self.cur.execute("select name from test")
|
|
t = threading.Thread(target=run, kwargs={"cur": self.cur, "errors": errors})
|
|
t.start()
|
|
t.join()
|
|
if len(errors) > 0:
|
|
self.fail("\n".join(errors))
|
|
|
|
class ConstructorTests(unittest.TestCase):
|
|
def CheckDate(self):
|
|
d = sqlite.Date(2004, 10, 28)
|
|
|
|
def CheckTime(self):
|
|
t = sqlite.Time(12, 39, 35)
|
|
|
|
def CheckTimestamp(self):
|
|
ts = sqlite.Timestamp(2004, 10, 28, 12, 39, 35)
|
|
|
|
def CheckDateFromTicks(self):
|
|
d = sqlite.DateFromTicks(42)
|
|
|
|
def CheckTimeFromTicks(self):
|
|
t = sqlite.TimeFromTicks(42)
|
|
|
|
def CheckTimestampFromTicks(self):
|
|
ts = sqlite.TimestampFromTicks(42)
|
|
|
|
def CheckBinary(self):
|
|
b = sqlite.Binary(chr(0) + "'")
|
|
|
|
class ExtensionTests(unittest.TestCase):
|
|
def CheckScriptStringSql(self):
|
|
con = sqlite.connect(":memory:")
|
|
cur = con.cursor()
|
|
cur.executescript("""
|
|
-- bla bla
|
|
/* a stupid comment */
|
|
create table a(i);
|
|
insert into a(i) values (5);
|
|
""")
|
|
cur.execute("select i from a")
|
|
res = cur.fetchone()[0]
|
|
self.failUnlessEqual(res, 5)
|
|
|
|
def CheckScriptStringUnicode(self):
|
|
con = sqlite.connect(":memory:")
|
|
cur = con.cursor()
|
|
cur.executescript(u"""
|
|
create table a(i);
|
|
insert into a(i) values (5);
|
|
select i from a;
|
|
delete from a;
|
|
insert into a(i) values (6);
|
|
""")
|
|
cur.execute("select i from a")
|
|
res = cur.fetchone()[0]
|
|
self.failUnlessEqual(res, 6)
|
|
|
|
def CheckScriptErrorIncomplete(self):
|
|
con = sqlite.connect(":memory:")
|
|
cur = con.cursor()
|
|
raised = False
|
|
try:
|
|
cur.executescript("create table test(sadfsadfdsa")
|
|
except sqlite.ProgrammingError:
|
|
raised = True
|
|
self.failUnlessEqual(raised, True, "should have raised an exception")
|
|
|
|
def CheckScriptErrorNormal(self):
|
|
con = sqlite.connect(":memory:")
|
|
cur = con.cursor()
|
|
raised = False
|
|
try:
|
|
cur.executescript("create table test(sadfsadfdsa); select foo from hurz;")
|
|
except sqlite.OperationalError:
|
|
raised = True
|
|
self.failUnlessEqual(raised, True, "should have raised an exception")
|
|
|
|
def CheckConnectionExecute(self):
|
|
con = sqlite.connect(":memory:")
|
|
result = con.execute("select 5").fetchone()[0]
|
|
self.failUnlessEqual(result, 5, "Basic test of Connection.execute")
|
|
|
|
def CheckConnectionExecutemany(self):
|
|
con = sqlite.connect(":memory:")
|
|
con.execute("create table test(foo)")
|
|
con.executemany("insert into test(foo) values (?)", [(3,), (4,)])
|
|
result = con.execute("select foo from test order by foo").fetchall()
|
|
self.failUnlessEqual(result[0][0], 3, "Basic test of Connection.executemany")
|
|
self.failUnlessEqual(result[1][0], 4, "Basic test of Connection.executemany")
|
|
|
|
def CheckConnectionExecutescript(self):
|
|
con = sqlite.connect(":memory:")
|
|
con.executescript("create table test(foo); insert into test(foo) values (5);")
|
|
result = con.execute("select foo from test").fetchone()[0]
|
|
self.failUnlessEqual(result, 5, "Basic test of Connection.executescript")
|
|
|
|
class ClosedTests(unittest.TestCase):
|
|
def setUp(self):
|
|
pass
|
|
|
|
def tearDown(self):
|
|
pass
|
|
|
|
def CheckClosedConCursor(self):
|
|
con = sqlite.connect(":memory:")
|
|
con.close()
|
|
try:
|
|
cur = con.cursor()
|
|
self.fail("Should have raised a ProgrammingError")
|
|
except sqlite.ProgrammingError:
|
|
pass
|
|
except:
|
|
self.fail("Should have raised a ProgrammingError")
|
|
|
|
def CheckClosedConCommit(self):
|
|
con = sqlite.connect(":memory:")
|
|
con.close()
|
|
try:
|
|
con.commit()
|
|
self.fail("Should have raised a ProgrammingError")
|
|
except sqlite.ProgrammingError:
|
|
pass
|
|
except:
|
|
self.fail("Should have raised a ProgrammingError")
|
|
|
|
def CheckClosedConRollback(self):
|
|
con = sqlite.connect(":memory:")
|
|
con.close()
|
|
try:
|
|
con.rollback()
|
|
self.fail("Should have raised a ProgrammingError")
|
|
except sqlite.ProgrammingError:
|
|
pass
|
|
except:
|
|
self.fail("Should have raised a ProgrammingError")
|
|
|
|
def CheckClosedCurExecute(self):
|
|
con = sqlite.connect(":memory:")
|
|
cur = con.cursor()
|
|
con.close()
|
|
try:
|
|
cur.execute("select 4")
|
|
self.fail("Should have raised a ProgrammingError")
|
|
except sqlite.ProgrammingError:
|
|
pass
|
|
except:
|
|
self.fail("Should have raised a ProgrammingError")
|
|
|
|
def suite():
|
|
module_suite = unittest.makeSuite(ModuleTests, "Check")
|
|
connection_suite = unittest.makeSuite(ConnectionTests, "Check")
|
|
cursor_suite = unittest.makeSuite(CursorTests, "Check")
|
|
thread_suite = unittest.makeSuite(ThreadTests, "Check")
|
|
constructor_suite = unittest.makeSuite(ConstructorTests, "Check")
|
|
ext_suite = unittest.makeSuite(ExtensionTests, "Check")
|
|
closed_suite = unittest.makeSuite(ClosedTests, "Check")
|
|
return unittest.TestSuite((module_suite, connection_suite, cursor_suite, thread_suite, constructor_suite, ext_suite, closed_suite))
|
|
|
|
def test():
|
|
runner = unittest.TextTestRunner()
|
|
runner.run(suite())
|
|
|
|
if __name__ == "__main__":
|
|
test()
|