diff options
| -rw-r--r-- | Lib/sqlite3/test/dbapi.py | 101 |
1 files changed, 100 insertions, 1 deletions
diff --git a/Lib/sqlite3/test/dbapi.py b/Lib/sqlite3/test/dbapi.py index 51c4d53..cb85814 100644 --- a/Lib/sqlite3/test/dbapi.py +++ b/Lib/sqlite3/test/dbapi.py @@ -820,6 +820,100 @@ class ClosedCurTests(unittest.TestCase): method = getattr(cur, method_name) method(*params) + +class SqliteOnConflictTests(unittest.TestCase): + """ + Tests for SQLite's "insert on conflict" feature. + + See https://www.sqlite.org/lang_conflict.html for details. + """ + + def setUp(self): + self.cx = sqlite.connect(":memory:") + self.cu = self.cx.cursor() + self.cu.execute(""" + CREATE TABLE test( + id INTEGER PRIMARY KEY, name TEXT, unique_name TEXT UNIQUE + ); + """) + + def tearDown(self): + self.cu.close() + self.cx.close() + + def CheckOnConflictRollbackWithExplicitTransaction(self): + self.cx.isolation_level = None # autocommit mode + self.cu = self.cx.cursor() + # Start an explicit transaction. + self.cu.execute("BEGIN") + self.cu.execute("INSERT INTO test(name) VALUES ('abort_test')") + self.cu.execute("INSERT OR ROLLBACK INTO test(unique_name) VALUES ('foo')") + with self.assertRaises(sqlite.IntegrityError): + self.cu.execute("INSERT OR ROLLBACK INTO test(unique_name) VALUES ('foo')") + # Use connection to commit. + self.cx.commit() + self.cu.execute("SELECT name, unique_name from test") + # Transaction should have rolled back and nothing should be in table. + self.assertEqual(self.cu.fetchall(), []) + + def CheckOnConflictAbortRaisesWithExplicitTransactions(self): + # Abort cancels the current sql statement but doesn't change anything + # about the current transaction. + self.cx.isolation_level = None # autocommit mode + self.cu = self.cx.cursor() + # Start an explicit transaction. + self.cu.execute("BEGIN") + self.cu.execute("INSERT INTO test(name) VALUES ('abort_test')") + self.cu.execute("INSERT OR ABORT INTO test(unique_name) VALUES ('foo')") + with self.assertRaises(sqlite.IntegrityError): + self.cu.execute("INSERT OR ABORT INTO test(unique_name) VALUES ('foo')") + self.cx.commit() + self.cu.execute("SELECT name, unique_name FROM test") + # Expect the first two inserts to work, third to do nothing. + self.assertEqual(self.cu.fetchall(), [('abort_test', None), (None, 'foo',)]) + + def CheckOnConflictRollbackWithoutTransaction(self): + # Start of implicit transaction + self.cu.execute("INSERT INTO test(name) VALUES ('abort_test')") + self.cu.execute("INSERT OR ROLLBACK INTO test(unique_name) VALUES ('foo')") + with self.assertRaises(sqlite.IntegrityError): + self.cu.execute("INSERT OR ROLLBACK INTO test(unique_name) VALUES ('foo')") + self.cu.execute("SELECT name, unique_name FROM test") + # Implicit transaction is rolled back on error. + self.assertEqual(self.cu.fetchall(), []) + + def CheckOnConflictAbortRaisesWithoutTransactions(self): + # Abort cancels the current sql statement but doesn't change anything + # about the current transaction. + self.cu.execute("INSERT INTO test(name) VALUES ('abort_test')") + self.cu.execute("INSERT OR ABORT INTO test(unique_name) VALUES ('foo')") + with self.assertRaises(sqlite.IntegrityError): + self.cu.execute("INSERT OR ABORT INTO test(unique_name) VALUES ('foo')") + # Make sure all other values were inserted. + self.cu.execute("SELECT name, unique_name FROM test") + self.assertEqual(self.cu.fetchall(), [('abort_test', None), (None, 'foo',)]) + + def CheckOnConflictFail(self): + self.cu.execute("INSERT OR FAIL INTO test(unique_name) VALUES ('foo')") + with self.assertRaises(sqlite.IntegrityError): + self.cu.execute("INSERT OR FAIL INTO test(unique_name) VALUES ('foo')") + self.assertEqual(self.cu.fetchall(), []) + + def CheckOnConflictIgnore(self): + self.cu.execute("INSERT OR IGNORE INTO test(unique_name) VALUES ('foo')") + # Nothing should happen. + self.cu.execute("INSERT OR IGNORE INTO test(unique_name) VALUES ('foo')") + self.cu.execute("SELECT unique_name FROM test") + self.assertEqual(self.cu.fetchall(), [('foo',)]) + + def CheckOnConflictReplace(self): + self.cu.execute("INSERT OR REPLACE INTO test(name, unique_name) VALUES ('Data!', 'foo')") + # There shouldn't be an IntegrityError exception. + self.cu.execute("INSERT OR REPLACE INTO test(name, unique_name) VALUES ('Very different data!', 'foo')") + self.cu.execute("SELECT name, unique_name FROM test") + self.assertEqual(self.cu.fetchall(), [('Very different data!', 'foo')]) + + def suite(): module_suite = unittest.makeSuite(ModuleTests, "Check") connection_suite = unittest.makeSuite(ConnectionTests, "Check") @@ -829,7 +923,12 @@ def suite(): ext_suite = unittest.makeSuite(ExtensionTests, "Check") closed_con_suite = unittest.makeSuite(ClosedConTests, "Check") closed_cur_suite = unittest.makeSuite(ClosedCurTests, "Check") - return unittest.TestSuite((module_suite, connection_suite, cursor_suite, thread_suite, constructor_suite, ext_suite, closed_con_suite, closed_cur_suite)) + on_conflict_suite = unittest.makeSuite(SqliteOnConflictTests, "Check") + return unittest.TestSuite(( + module_suite, connection_suite, cursor_suite, thread_suite, + constructor_suite, ext_suite, closed_con_suite, closed_cur_suite, + on_conflict_suite, + )) def test(): runner = unittest.TextTestRunner() |