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authorErlend Egeberg Aasland <erlend.aasland@innova.no>2021-10-30 00:08:19 +0200
committerGitHub <noreply@github.com>2021-10-29 15:08:19 -0700
commit62bf263a775f4444d8b5d5841cc09be3bd53e933 (patch)
treed92d1e79ebb70b5b5f92ab034aa45fecd2a368e4 /Lib/sqlite3/test/test_transactions.py
parentc2d0ba722a7b3839685af968cf0c304a24cdf525 (diff)
downloadcpython-git-62bf263a775f4444d8b5d5841cc09be3bd53e933.tar.gz
bpo-10572: Move `sqlite3` tests to `Lib/test` (GH-29304)
Automerge-Triggered-By: GH:brettcannon
Diffstat (limited to 'Lib/sqlite3/test/test_transactions.py')
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diff --git a/Lib/sqlite3/test/test_transactions.py b/Lib/sqlite3/test/test_transactions.py
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@@ -1,200 +0,0 @@
-# pysqlite2/test/transactions.py: tests transactions
-#
-# 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 os, unittest
-import sqlite3 as sqlite
-
-def get_db_path():
- return "sqlite_testdb"
-
-class TransactionTests(unittest.TestCase):
- def setUp(self):
- try:
- os.remove(get_db_path())
- except OSError:
- pass
-
- self.con1 = sqlite.connect(get_db_path(), timeout=0.1)
- self.cur1 = self.con1.cursor()
-
- self.con2 = sqlite.connect(get_db_path(), timeout=0.1)
- self.cur2 = self.con2.cursor()
-
- def tearDown(self):
- self.cur1.close()
- self.con1.close()
-
- self.cur2.close()
- self.con2.close()
-
- try:
- os.unlink(get_db_path())
- except OSError:
- pass
-
- def test_dml_does_not_auto_commit_before(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.cur1.execute("create table test2(j)")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 0)
-
- def test_insert_starts_transaction(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 0)
-
- def test_update_starts_transaction(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.con1.commit()
- self.cur1.execute("update test set i=6")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchone()[0]
- self.assertEqual(res, 5)
-
- def test_delete_starts_transaction(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.con1.commit()
- self.cur1.execute("delete from test")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 1)
-
- def test_replace_starts_transaction(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.con1.commit()
- self.cur1.execute("replace into test(i) values (6)")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 1)
- self.assertEqual(res[0][0], 5)
-
- def test_toggle_auto_commit(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- self.con1.isolation_level = None
- self.assertEqual(self.con1.isolation_level, None)
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 1)
-
- self.con1.isolation_level = "DEFERRED"
- self.assertEqual(self.con1.isolation_level , "DEFERRED")
- self.cur1.execute("insert into test(i) values (5)")
- self.cur2.execute("select i from test")
- res = self.cur2.fetchall()
- self.assertEqual(len(res), 1)
-
- def test_raise_timeout(self):
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- with self.assertRaises(sqlite.OperationalError):
- self.cur2.execute("insert into test(i) values (5)")
-
- def test_locking(self):
- """
- This tests the improved concurrency with pysqlite 2.3.4. You needed
- to roll back con2 before you could commit con1.
- """
- self.cur1.execute("create table test(i)")
- self.cur1.execute("insert into test(i) values (5)")
- with self.assertRaises(sqlite.OperationalError):
- self.cur2.execute("insert into test(i) values (5)")
- # NO self.con2.rollback() HERE!!!
- self.con1.commit()
-
- def test_rollback_cursor_consistency(self):
- """
- Checks if cursors on the connection are set into a "reset" state
- when a rollback is done on the connection.
- """
- con = sqlite.connect(":memory:")
- cur = con.cursor()
- cur.execute("create table test(x)")
- cur.execute("insert into test(x) values (5)")
- cur.execute("select 1 union select 2 union select 3")
-
- con.rollback()
- with self.assertRaises(sqlite.InterfaceError):
- cur.fetchall()
-
-class SpecialCommandTests(unittest.TestCase):
- def setUp(self):
- self.con = sqlite.connect(":memory:")
- self.cur = self.con.cursor()
-
- def test_drop_table(self):
- self.cur.execute("create table test(i)")
- self.cur.execute("insert into test(i) values (5)")
- self.cur.execute("drop table test")
-
- def test_pragma(self):
- self.cur.execute("create table test(i)")
- self.cur.execute("insert into test(i) values (5)")
- self.cur.execute("pragma count_changes=1")
-
- def tearDown(self):
- self.cur.close()
- self.con.close()
-
-class TransactionalDDL(unittest.TestCase):
- def setUp(self):
- self.con = sqlite.connect(":memory:")
-
- def test_ddl_does_not_autostart_transaction(self):
- # For backwards compatibility reasons, DDL statements should not
- # implicitly start a transaction.
- self.con.execute("create table test(i)")
- self.con.rollback()
- result = self.con.execute("select * from test").fetchall()
- self.assertEqual(result, [])
-
- def test_immediate_transactional_ddl(self):
- # You can achieve transactional DDL by issuing a BEGIN
- # statement manually.
- self.con.execute("begin immediate")
- self.con.execute("create table test(i)")
- self.con.rollback()
- with self.assertRaises(sqlite.OperationalError):
- self.con.execute("select * from test")
-
- def test_transactional_ddl(self):
- # You can achieve transactional DDL by issuing a BEGIN
- # statement manually.
- self.con.execute("begin")
- self.con.execute("create table test(i)")
- self.con.rollback()
- with self.assertRaises(sqlite.OperationalError):
- self.con.execute("select * from test")
-
- def tearDown(self):
- self.con.close()
-
-
-if __name__ == "__main__":
- unittest.main()