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Diffstat (limited to 'Lib/sqlite3/test/test_dbapi.py')
| -rw-r--r-- | Lib/sqlite3/test/test_dbapi.py | 1161 |
1 files changed, 0 insertions, 1161 deletions
diff --git a/Lib/sqlite3/test/test_dbapi.py b/Lib/sqlite3/test/test_dbapi.py deleted file mode 100644 index d825436..0000000 --- a/Lib/sqlite3/test/test_dbapi.py +++ /dev/null @@ -1,1161 +0,0 @@ -# pysqlite2/test/dbapi.py: tests for DB-API compliance -# -# Copyright (C) 2004-2010 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 contextlib -import sqlite3 as sqlite -import subprocess -import sys -import threading -import unittest - -from test.support import ( - SHORT_TIMEOUT, - bigmemtest, - check_disallow_instantiation, - threading_helper, -) -from test.support.os_helper import TESTFN, unlink, temp_dir - - -# Helper for tests using TESTFN -@contextlib.contextmanager -def managed_connect(*args, in_mem=False, **kwargs): - cx = sqlite.connect(*args, **kwargs) - try: - yield cx - finally: - cx.close() - if not in_mem: - unlink(TESTFN) - - -class ModuleTests(unittest.TestCase): - def test_api_level(self): - self.assertEqual(sqlite.apilevel, "2.0", - "apilevel is %s, should be 2.0" % sqlite.apilevel) - - def test_thread_safety(self): - self.assertEqual(sqlite.threadsafety, 1, - "threadsafety is %d, should be 1" % sqlite.threadsafety) - - def test_param_style(self): - self.assertEqual(sqlite.paramstyle, "qmark", - "paramstyle is '%s', should be 'qmark'" % - sqlite.paramstyle) - - def test_warning(self): - self.assertTrue(issubclass(sqlite.Warning, Exception), - "Warning is not a subclass of Exception") - - def test_error(self): - self.assertTrue(issubclass(sqlite.Error, Exception), - "Error is not a subclass of Exception") - - def test_interface_error(self): - self.assertTrue(issubclass(sqlite.InterfaceError, sqlite.Error), - "InterfaceError is not a subclass of Error") - - def test_database_error(self): - self.assertTrue(issubclass(sqlite.DatabaseError, sqlite.Error), - "DatabaseError is not a subclass of Error") - - def test_data_error(self): - self.assertTrue(issubclass(sqlite.DataError, sqlite.DatabaseError), - "DataError is not a subclass of DatabaseError") - - def test_operational_error(self): - self.assertTrue(issubclass(sqlite.OperationalError, sqlite.DatabaseError), - "OperationalError is not a subclass of DatabaseError") - - def test_integrity_error(self): - self.assertTrue(issubclass(sqlite.IntegrityError, sqlite.DatabaseError), - "IntegrityError is not a subclass of DatabaseError") - - def test_internal_error(self): - self.assertTrue(issubclass(sqlite.InternalError, sqlite.DatabaseError), - "InternalError is not a subclass of DatabaseError") - - def test_programming_error(self): - self.assertTrue(issubclass(sqlite.ProgrammingError, sqlite.DatabaseError), - "ProgrammingError is not a subclass of DatabaseError") - - def test_not_supported_error(self): - self.assertTrue(issubclass(sqlite.NotSupportedError, - sqlite.DatabaseError), - "NotSupportedError is not a subclass of DatabaseError") - - def test_module_constants(self): - consts = [ - "SQLITE_ABORT", - "SQLITE_ALTER_TABLE", - "SQLITE_ANALYZE", - "SQLITE_ATTACH", - "SQLITE_AUTH", - "SQLITE_BUSY", - "SQLITE_CANTOPEN", - "SQLITE_CONSTRAINT", - "SQLITE_CORRUPT", - "SQLITE_CREATE_INDEX", - "SQLITE_CREATE_TABLE", - "SQLITE_CREATE_TEMP_INDEX", - "SQLITE_CREATE_TEMP_TABLE", - "SQLITE_CREATE_TEMP_TRIGGER", - "SQLITE_CREATE_TEMP_VIEW", - "SQLITE_CREATE_TRIGGER", - "SQLITE_CREATE_VIEW", - "SQLITE_CREATE_VTABLE", - "SQLITE_DELETE", - "SQLITE_DENY", - "SQLITE_DETACH", - "SQLITE_DONE", - "SQLITE_DROP_INDEX", - "SQLITE_DROP_TABLE", - "SQLITE_DROP_TEMP_INDEX", - "SQLITE_DROP_TEMP_TABLE", - "SQLITE_DROP_TEMP_TRIGGER", - "SQLITE_DROP_TEMP_VIEW", - "SQLITE_DROP_TRIGGER", - "SQLITE_DROP_VIEW", - "SQLITE_DROP_VTABLE", - "SQLITE_EMPTY", - "SQLITE_ERROR", - "SQLITE_FORMAT", - "SQLITE_FULL", - "SQLITE_FUNCTION", - "SQLITE_IGNORE", - "SQLITE_INSERT", - "SQLITE_INTERNAL", - "SQLITE_INTERRUPT", - "SQLITE_IOERR", - "SQLITE_LOCKED", - "SQLITE_MISMATCH", - "SQLITE_MISUSE", - "SQLITE_NOLFS", - "SQLITE_NOMEM", - "SQLITE_NOTADB", - "SQLITE_NOTFOUND", - "SQLITE_OK", - "SQLITE_PERM", - "SQLITE_PRAGMA", - "SQLITE_PROTOCOL", - "SQLITE_READ", - "SQLITE_READONLY", - "SQLITE_REINDEX", - "SQLITE_ROW", - "SQLITE_SAVEPOINT", - "SQLITE_SCHEMA", - "SQLITE_SELECT", - "SQLITE_TOOBIG", - "SQLITE_TRANSACTION", - "SQLITE_UPDATE", - ] - if sqlite.sqlite_version_info >= (3, 7, 17): - consts += ["SQLITE_NOTICE", "SQLITE_WARNING"] - if sqlite.sqlite_version_info >= (3, 8, 3): - consts.append("SQLITE_RECURSIVE") - consts += ["PARSE_DECLTYPES", "PARSE_COLNAMES"] - for const in consts: - with self.subTest(const=const): - self.assertTrue(hasattr(sqlite, const)) - - def test_error_code_on_exception(self): - err_msg = "unable to open database file" - with temp_dir() as db: - with self.assertRaisesRegex(sqlite.Error, err_msg) as cm: - sqlite.connect(db) - e = cm.exception - self.assertEqual(e.sqlite_errorcode, sqlite.SQLITE_CANTOPEN) - self.assertEqual(e.sqlite_errorname, "SQLITE_CANTOPEN") - - # sqlite3_enable_shared_cache() is deprecated on macOS and calling it may raise - # OperationalError on some buildbots. - @unittest.skipIf(sys.platform == "darwin", "shared cache is deprecated on macOS") - def test_shared_cache_deprecated(self): - for enable in (True, False): - with self.assertWarns(DeprecationWarning) as cm: - sqlite.enable_shared_cache(enable) - self.assertIn("dbapi.py", cm.filename) - - def test_disallow_instantiation(self): - cx = sqlite.connect(":memory:") - check_disallow_instantiation(self, type(cx("select 1"))) - - def test_complete_statement(self): - self.assertFalse(sqlite.complete_statement("select t")) - self.assertTrue(sqlite.complete_statement("create table t(t);")) - - -class ConnectionTests(unittest.TestCase): - - def setUp(self): - self.cx = sqlite.connect(":memory:") - cu = self.cx.cursor() - cu.execute("create table test(id integer primary key, name text)") - cu.execute("insert into test(name) values (?)", ("foo",)) - - def tearDown(self): - self.cx.close() - - def test_commit(self): - self.cx.commit() - - def test_commit_after_no_changes(self): - """ - A commit should also work when no changes were made to the database. - """ - self.cx.commit() - self.cx.commit() - - def test_rollback(self): - self.cx.rollback() - - def test_rollback_after_no_changes(self): - """ - A rollback should also work when no changes were made to the database. - """ - self.cx.rollback() - self.cx.rollback() - - def test_cursor(self): - cu = self.cx.cursor() - - def test_failed_open(self): - YOU_CANNOT_OPEN_THIS = "/foo/bar/bla/23534/mydb.db" - with self.assertRaises(sqlite.OperationalError): - con = sqlite.connect(YOU_CANNOT_OPEN_THIS) - - def test_close(self): - self.cx.close() - - def test_use_after_close(self): - sql = "select 1" - cu = self.cx.cursor() - res = cu.execute(sql) - self.cx.close() - self.assertRaises(sqlite.ProgrammingError, res.fetchall) - self.assertRaises(sqlite.ProgrammingError, cu.execute, sql) - self.assertRaises(sqlite.ProgrammingError, cu.executemany, sql, []) - self.assertRaises(sqlite.ProgrammingError, cu.executescript, sql) - self.assertRaises(sqlite.ProgrammingError, self.cx.execute, sql) - self.assertRaises(sqlite.ProgrammingError, - self.cx.executemany, sql, []) - self.assertRaises(sqlite.ProgrammingError, self.cx.executescript, sql) - self.assertRaises(sqlite.ProgrammingError, - self.cx.create_function, "t", 1, lambda x: x) - self.assertRaises(sqlite.ProgrammingError, self.cx.cursor) - with self.assertRaises(sqlite.ProgrammingError): - with self.cx: - pass - - def test_exceptions(self): - # Optional DB-API extension. - self.assertEqual(self.cx.Warning, sqlite.Warning) - self.assertEqual(self.cx.Error, sqlite.Error) - self.assertEqual(self.cx.InterfaceError, sqlite.InterfaceError) - self.assertEqual(self.cx.DatabaseError, sqlite.DatabaseError) - self.assertEqual(self.cx.DataError, sqlite.DataError) - self.assertEqual(self.cx.OperationalError, sqlite.OperationalError) - self.assertEqual(self.cx.IntegrityError, sqlite.IntegrityError) - self.assertEqual(self.cx.InternalError, sqlite.InternalError) - self.assertEqual(self.cx.ProgrammingError, sqlite.ProgrammingError) - self.assertEqual(self.cx.NotSupportedError, sqlite.NotSupportedError) - - def test_in_transaction(self): - # Can't use db from setUp because we want to test initial state. - cx = sqlite.connect(":memory:") - cu = cx.cursor() - self.assertEqual(cx.in_transaction, False) - cu.execute("create table transactiontest(id integer primary key, name text)") - self.assertEqual(cx.in_transaction, False) - cu.execute("insert into transactiontest(name) values (?)", ("foo",)) - self.assertEqual(cx.in_transaction, True) - cu.execute("select name from transactiontest where name=?", ["foo"]) - row = cu.fetchone() - self.assertEqual(cx.in_transaction, True) - cx.commit() - self.assertEqual(cx.in_transaction, False) - cu.execute("select name from transactiontest where name=?", ["foo"]) - row = cu.fetchone() - self.assertEqual(cx.in_transaction, False) - - def test_in_transaction_ro(self): - with self.assertRaises(AttributeError): - self.cx.in_transaction = True - - def test_connection_exceptions(self): - exceptions = [ - "DataError", - "DatabaseError", - "Error", - "IntegrityError", - "InterfaceError", - "NotSupportedError", - "OperationalError", - "ProgrammingError", - "Warning", - ] - for exc in exceptions: - with self.subTest(exc=exc): - self.assertTrue(hasattr(self.cx, exc)) - self.assertIs(getattr(sqlite, exc), getattr(self.cx, exc)) - - def test_interrupt_on_closed_db(self): - cx = sqlite.connect(":memory:") - cx.close() - with self.assertRaises(sqlite.ProgrammingError): - cx.interrupt() - - def test_interrupt(self): - self.assertIsNone(self.cx.interrupt()) - - def test_drop_unused_refs(self): - for n in range(500): - cu = self.cx.execute(f"select {n}") - self.assertEqual(cu.fetchone()[0], n) - - -class UninitialisedConnectionTests(unittest.TestCase): - def setUp(self): - self.cx = sqlite.Connection.__new__(sqlite.Connection) - - def test_uninit_operations(self): - funcs = ( - lambda: self.cx.isolation_level, - lambda: self.cx.total_changes, - lambda: self.cx.in_transaction, - lambda: self.cx.iterdump(), - lambda: self.cx.cursor(), - lambda: self.cx.close(), - ) - for func in funcs: - with self.subTest(func=func): - self.assertRaisesRegex(sqlite.ProgrammingError, - "Base Connection.__init__ not called", - func) - - -class OpenTests(unittest.TestCase): - _sql = "create table test(id integer)" - - def test_open_with_path_like_object(self): - """ Checks that we can successfully connect to a database using an object that - is PathLike, i.e. has __fspath__(). """ - class Path: - def __fspath__(self): - return TESTFN - path = Path() - with managed_connect(path) as cx: - cx.execute(self._sql) - - def test_open_uri(self): - with managed_connect(TESTFN) as cx: - cx.execute(self._sql) - with managed_connect(f"file:{TESTFN}", uri=True) as cx: - cx.execute(self._sql) - with self.assertRaises(sqlite.OperationalError): - with managed_connect(f"file:{TESTFN}?mode=ro", uri=True) as cx: - cx.execute(self._sql) - - def test_database_keyword(self): - with sqlite.connect(database=":memory:") as cx: - self.assertEqual(type(cx), sqlite.Connection) - - -class CursorTests(unittest.TestCase): - 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, " - "income number, unique_test text unique)" - ) - self.cu.execute("insert into test(name) values (?)", ("foo",)) - - def tearDown(self): - self.cu.close() - self.cx.close() - - def test_execute_no_args(self): - self.cu.execute("delete from test") - - def test_execute_illegal_sql(self): - with self.assertRaises(sqlite.OperationalError): - self.cu.execute("select asdf") - - def test_execute_too_much_sql(self): - with self.assertRaises(sqlite.Warning): - self.cu.execute("select 5+4; select 4+5") - - def test_execute_too_much_sql2(self): - self.cu.execute("select 5+4; -- foo bar") - - def test_execute_too_much_sql3(self): - self.cu.execute(""" - select 5+4; - - /* - foo - */ - """) - - def test_execute_wrong_sql_arg(self): - with self.assertRaises(TypeError): - self.cu.execute(42) - - def test_execute_arg_int(self): - self.cu.execute("insert into test(id) values (?)", (42,)) - - def test_execute_arg_float(self): - self.cu.execute("insert into test(income) values (?)", (2500.32,)) - - def test_execute_arg_string(self): - self.cu.execute("insert into test(name) values (?)", ("Hugo",)) - - def test_execute_arg_string_with_zero_byte(self): - self.cu.execute("insert into test(name) values (?)", ("Hu\x00go",)) - - self.cu.execute("select name from test where id=?", (self.cu.lastrowid,)) - row = self.cu.fetchone() - self.assertEqual(row[0], "Hu\x00go") - - def test_execute_non_iterable(self): - with self.assertRaises(ValueError) as cm: - self.cu.execute("insert into test(id) values (?)", 42) - self.assertEqual(str(cm.exception), 'parameters are of unsupported type') - - def test_execute_wrong_no_of_args1(self): - # too many parameters - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("insert into test(id) values (?)", (17, "Egon")) - - def test_execute_wrong_no_of_args2(self): - # too little parameters - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("insert into test(id) values (?)") - - def test_execute_wrong_no_of_args3(self): - # no parameters, parameters are needed - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("insert into test(id) values (?)") - - def test_execute_param_list(self): - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("select name from test where name=?", ["foo"]) - row = self.cu.fetchone() - self.assertEqual(row[0], "foo") - - def test_execute_param_sequence(self): - class L: - def __len__(self): - return 1 - def __getitem__(self, x): - assert x == 0 - return "foo" - - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("select name from test where name=?", L()) - row = self.cu.fetchone() - self.assertEqual(row[0], "foo") - - def test_execute_param_sequence_bad_len(self): - # Issue41662: Error in __len__() was overridden with ProgrammingError. - class L: - def __len__(self): - 1/0 - def __getitem__(slf, x): - raise AssertionError - - self.cu.execute("insert into test(name) values ('foo')") - with self.assertRaises(ZeroDivisionError): - self.cu.execute("select name from test where name=?", L()) - - def test_execute_dict_mapping(self): - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("select name from test where name=:name", {"name": "foo"}) - row = self.cu.fetchone() - self.assertEqual(row[0], "foo") - - def test_execute_dict_mapping_mapping(self): - class D(dict): - def __missing__(self, key): - return "foo" - - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("select name from test where name=:name", D()) - row = self.cu.fetchone() - self.assertEqual(row[0], "foo") - - def test_execute_dict_mapping_too_little_args(self): - self.cu.execute("insert into test(name) values ('foo')") - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("select name from test where name=:name and id=:id", {"name": "foo"}) - - def test_execute_dict_mapping_no_args(self): - self.cu.execute("insert into test(name) values ('foo')") - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("select name from test where name=:name") - - def test_execute_dict_mapping_unnamed(self): - self.cu.execute("insert into test(name) values ('foo')") - with self.assertRaises(sqlite.ProgrammingError): - self.cu.execute("select name from test where name=?", {"name": "foo"}) - - def test_close(self): - self.cu.close() - - def test_rowcount_execute(self): - self.cu.execute("delete from test") - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("update test set name='bar'") - self.assertEqual(self.cu.rowcount, 2) - - def test_rowcount_select(self): - """ - pysqlite does not know the rowcount of SELECT statements, because we - don't fetch all rows after executing the select statement. The rowcount - has thus to be -1. - """ - self.cu.execute("select 5 union select 6") - self.assertEqual(self.cu.rowcount, -1) - - def test_rowcount_executemany(self): - self.cu.execute("delete from test") - self.cu.executemany("insert into test(name) values (?)", [(1,), (2,), (3,)]) - self.assertEqual(self.cu.rowcount, 3) - - def test_total_changes(self): - self.cu.execute("insert into test(name) values ('foo')") - self.cu.execute("insert into test(name) values ('foo')") - self.assertLess(2, self.cx.total_changes, msg='total changes reported wrong value') - - # Checks for executemany: - # Sequences are required by the DB-API, iterators - # enhancements in pysqlite. - - def test_execute_many_sequence(self): - self.cu.executemany("insert into test(income) values (?)", [(x,) for x in range(100, 110)]) - - def test_execute_many_iterator(self): - class MyIter: - def __init__(self): - self.value = 5 - - def __iter__(self): - return self - - def __next__(self): - if self.value == 10: - raise StopIteration - else: - self.value += 1 - return (self.value,) - - self.cu.executemany("insert into test(income) values (?)", MyIter()) - - def test_execute_many_generator(self): - def mygen(): - for i in range(5): - yield (i,) - - self.cu.executemany("insert into test(income) values (?)", mygen()) - - def test_execute_many_wrong_sql_arg(self): - with self.assertRaises(TypeError): - self.cu.executemany(42, [(3,)]) - - def test_execute_many_select(self): - with self.assertRaises(sqlite.ProgrammingError): - self.cu.executemany("select ?", [(3,)]) - - def test_execute_many_not_iterable(self): - with self.assertRaises(TypeError): - self.cu.executemany("insert into test(income) values (?)", 42) - - def test_fetch_iter(self): - # Optional DB-API extension. - self.cu.execute("delete from test") - self.cu.execute("insert into test(id) values (?)", (5,)) - self.cu.execute("insert into test(id) values (?)", (6,)) - self.cu.execute("select id from test order by id") - lst = [] - for row in self.cu: - lst.append(row[0]) - self.assertEqual(lst[0], 5) - self.assertEqual(lst[1], 6) - - def test_fetchone(self): - self.cu.execute("select name from test") - row = self.cu.fetchone() - self.assertEqual(row[0], "foo") - row = self.cu.fetchone() - self.assertEqual(row, None) - - def test_fetchone_no_statement(self): - cur = self.cx.cursor() - row = cur.fetchone() - self.assertEqual(row, None) - - def test_array_size(self): - # must default to 1 - self.assertEqual(self.cu.arraysize, 1) - - # now set to 2 - self.cu.arraysize = 2 - - # now make the query return 3 rows - self.cu.execute("delete from test") - self.cu.execute("insert into test(name) values ('A')") - self.cu.execute("insert into test(name) values ('B')") - self.cu.execute("insert into test(name) values ('C')") - self.cu.execute("select name from test") - res = self.cu.fetchmany() - - self.assertEqual(len(res), 2) - - def test_fetchmany(self): - self.cu.execute("select name from test") - res = self.cu.fetchmany(100) - self.assertEqual(len(res), 1) - res = self.cu.fetchmany(100) - self.assertEqual(res, []) - - def test_fetchmany_kw_arg(self): - """Checks if fetchmany works with keyword arguments""" - self.cu.execute("select name from test") - res = self.cu.fetchmany(size=100) - self.assertEqual(len(res), 1) - - def test_fetchall(self): - self.cu.execute("select name from test") - res = self.cu.fetchall() - self.assertEqual(len(res), 1) - res = self.cu.fetchall() - self.assertEqual(res, []) - - def test_setinputsizes(self): - self.cu.setinputsizes([3, 4, 5]) - - def test_setoutputsize(self): - self.cu.setoutputsize(5, 0) - - def test_setoutputsize_no_column(self): - self.cu.setoutputsize(42) - - def test_cursor_connection(self): - # Optional DB-API extension. - self.assertEqual(self.cu.connection, self.cx) - - def test_wrong_cursor_callable(self): - with self.assertRaises(TypeError): - def f(): pass - cur = self.cx.cursor(f) - - def test_cursor_wrong_class(self): - class Foo: pass - foo = Foo() - with self.assertRaises(TypeError): - cur = sqlite.Cursor(foo) - - def test_last_row_id_on_replace(self): - """ - INSERT OR REPLACE and REPLACE INTO should produce the same behavior. - """ - sql = '{} INTO test(id, unique_test) VALUES (?, ?)' - for statement in ('INSERT OR REPLACE', 'REPLACE'): - with self.subTest(statement=statement): - self.cu.execute(sql.format(statement), (1, 'foo')) - self.assertEqual(self.cu.lastrowid, 1) - - def test_last_row_id_on_ignore(self): - self.cu.execute( - "insert or ignore into test(unique_test) values (?)", - ('test',)) - self.assertEqual(self.cu.lastrowid, 2) - self.cu.execute( - "insert or ignore into test(unique_test) values (?)", - ('test',)) - self.assertEqual(self.cu.lastrowid, 2) - - def test_last_row_id_insert_o_r(self): - results = [] - for statement in ('FAIL', 'ABORT', 'ROLLBACK'): - sql = 'INSERT OR {} INTO test(unique_test) VALUES (?)' - with self.subTest(statement='INSERT OR {}'.format(statement)): - self.cu.execute(sql.format(statement), (statement,)) - results.append((statement, self.cu.lastrowid)) - with self.assertRaises(sqlite.IntegrityError): - self.cu.execute(sql.format(statement), (statement,)) - results.append((statement, self.cu.lastrowid)) - expected = [ - ('FAIL', 2), ('FAIL', 2), - ('ABORT', 3), ('ABORT', 3), - ('ROLLBACK', 4), ('ROLLBACK', 4), - ] - self.assertEqual(results, expected) - - def test_column_count(self): - # Check that column count is updated correctly for cached statements - select = "select * from test" - res = self.cu.execute(select) - old_count = len(res.description) - # Add a new column and execute the cached select query again - self.cu.execute("alter table test add newcol") - res = self.cu.execute(select) - new_count = len(res.description) - self.assertEqual(new_count - old_count, 1) - - def test_same_query_in_multiple_cursors(self): - cursors = [self.cx.execute("select 1") for _ in range(3)] - for cu in cursors: - self.assertEqual(cu.fetchall(), [(1,)]) - - -class ThreadTests(unittest.TestCase): - def setUp(self): - self.con = sqlite.connect(":memory:") - self.cur = self.con.cursor() - self.cur.execute("create table test(name text)") - - def tearDown(self): - self.cur.close() - self.con.close() - - @threading_helper.reap_threads - def _run_test(self, fn, *args, **kwds): - def run(err): - try: - fn(*args, **kwds) - err.append("did not raise ProgrammingError") - except sqlite.ProgrammingError: - pass - except: - err.append("raised wrong exception") - - err = [] - t = threading.Thread(target=run, kwargs={"err": err}) - t.start() - t.join() - if err: - self.fail("\n".join(err)) - - def test_check_connection_thread(self): - fns = [ - lambda: self.con.cursor(), - lambda: self.con.commit(), - lambda: self.con.rollback(), - lambda: self.con.close(), - lambda: self.con.set_trace_callback(None), - lambda: self.con.set_authorizer(None), - lambda: self.con.create_collation("foo", None), - ] - for fn in fns: - with self.subTest(fn=fn): - self._run_test(fn) - - def test_check_cursor_thread(self): - fns = [ - lambda: self.cur.execute("insert into test(name) values('a')"), - lambda: self.cur.close(), - lambda: self.cur.execute("select name from test"), - lambda: self.cur.fetchone(), - ] - for fn in fns: - with self.subTest(fn=fn): - self._run_test(fn) - - - @threading_helper.reap_threads - def test_dont_check_same_thread(self): - def run(con, err): - try: - con.execute("select 1") - except sqlite.Error: - err.append("multi-threading not allowed") - - con = sqlite.connect(":memory:", check_same_thread=False) - err = [] - t = threading.Thread(target=run, kwargs={"con": con, "err": err}) - t.start() - t.join() - self.assertEqual(len(err), 0, "\n".join(err)) - - -class ConstructorTests(unittest.TestCase): - def test_date(self): - d = sqlite.Date(2004, 10, 28) - - def test_time(self): - t = sqlite.Time(12, 39, 35) - - def test_timestamp(self): - ts = sqlite.Timestamp(2004, 10, 28, 12, 39, 35) - - def test_date_from_ticks(self): - d = sqlite.DateFromTicks(42) - - def test_time_from_ticks(self): - t = sqlite.TimeFromTicks(42) - - def test_timestamp_from_ticks(self): - ts = sqlite.TimestampFromTicks(42) - - def test_binary(self): - b = sqlite.Binary(b"\0'") - -class ExtensionTests(unittest.TestCase): - def test_script_string_sql(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.assertEqual(res, 5) - - def test_script_syntax_error(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - with self.assertRaises(sqlite.OperationalError): - cur.executescript("create table test(x); asdf; create table test2(x)") - - def test_script_error_normal(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - with self.assertRaises(sqlite.OperationalError): - cur.executescript("create table test(sadfsadfdsa); select foo from hurz;") - - def test_cursor_executescript_as_bytes(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - with self.assertRaises(TypeError): - cur.executescript(b"create table test(foo); insert into test(foo) values (5);") - - def test_cursor_executescript_with_null_characters(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - with self.assertRaises(ValueError): - cur.executescript(""" - create table a(i);\0 - insert into a(i) values (5); - """) - - def test_cursor_executescript_with_surrogates(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - with self.assertRaises(UnicodeEncodeError): - cur.executescript(""" - create table a(s); - insert into a(s) values ('\ud8ff'); - """) - - @unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform') - @bigmemtest(size=2**31, memuse=3, dry_run=False) - def test_cursor_executescript_too_large_script(self, maxsize): - con = sqlite.connect(":memory:") - cur = con.cursor() - for size in 2**31-1, 2**31: - with self.assertRaises(sqlite.DataError): - cur.executescript("create table a(s);".ljust(size)) - - def test_cursor_executescript_tx_control(self): - con = sqlite.connect(":memory:") - con.execute("begin") - self.assertTrue(con.in_transaction) - con.executescript("select 1") - self.assertFalse(con.in_transaction) - - def test_connection_execute(self): - con = sqlite.connect(":memory:") - result = con.execute("select 5").fetchone()[0] - self.assertEqual(result, 5, "Basic test of Connection.execute") - - def test_connection_executemany(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.assertEqual(result[0][0], 3, "Basic test of Connection.executemany") - self.assertEqual(result[1][0], 4, "Basic test of Connection.executemany") - - def test_connection_executescript(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.assertEqual(result, 5, "Basic test of Connection.executescript") - -class ClosedConTests(unittest.TestCase): - def test_closed_con_cursor(self): - con = sqlite.connect(":memory:") - con.close() - with self.assertRaises(sqlite.ProgrammingError): - cur = con.cursor() - - def test_closed_con_commit(self): - con = sqlite.connect(":memory:") - con.close() - with self.assertRaises(sqlite.ProgrammingError): - con.commit() - - def test_closed_con_rollback(self): - con = sqlite.connect(":memory:") - con.close() - with self.assertRaises(sqlite.ProgrammingError): - con.rollback() - - def test_closed_cur_execute(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - con.close() - with self.assertRaises(sqlite.ProgrammingError): - cur.execute("select 4") - - def test_closed_create_function(self): - con = sqlite.connect(":memory:") - con.close() - def f(x): return 17 - with self.assertRaises(sqlite.ProgrammingError): - con.create_function("foo", 1, f) - - def test_closed_create_aggregate(self): - con = sqlite.connect(":memory:") - con.close() - class Agg: - def __init__(self): - pass - def step(self, x): - pass - def finalize(self): - return 17 - with self.assertRaises(sqlite.ProgrammingError): - con.create_aggregate("foo", 1, Agg) - - def test_closed_set_authorizer(self): - con = sqlite.connect(":memory:") - con.close() - def authorizer(*args): - return sqlite.DENY - with self.assertRaises(sqlite.ProgrammingError): - con.set_authorizer(authorizer) - - def test_closed_set_progress_callback(self): - con = sqlite.connect(":memory:") - con.close() - def progress(): pass - with self.assertRaises(sqlite.ProgrammingError): - con.set_progress_handler(progress, 100) - - def test_closed_call(self): - con = sqlite.connect(":memory:") - con.close() - with self.assertRaises(sqlite.ProgrammingError): - con() - -class ClosedCurTests(unittest.TestCase): - def test_closed(self): - con = sqlite.connect(":memory:") - cur = con.cursor() - cur.close() - - for method_name in ("execute", "executemany", "executescript", "fetchall", "fetchmany", "fetchone"): - if method_name in ("execute", "executescript"): - params = ("select 4 union select 5",) - elif method_name == "executemany": - params = ("insert into foo(bar) values (?)", [(3,), (4,)]) - else: - params = [] - - with self.assertRaises(sqlite.ProgrammingError): - 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 test_on_conflict_rollback_with_explicit_transaction(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 test_on_conflict_abort_raises_with_explicit_transactions(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 test_on_conflict_rollback_without_transaction(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 test_on_conflict_abort_raises_without_transactions(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 test_on_conflict_fail(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 test_on_conflict_ignore(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 test_on_conflict_replace(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')]) - - -class MultiprocessTests(unittest.TestCase): - CONNECTION_TIMEOUT = SHORT_TIMEOUT / 1000. # Defaults to 30 ms - - def tearDown(self): - unlink(TESTFN) - - def test_ctx_mgr_rollback_if_commit_failed(self): - # bpo-27334: ctx manager does not rollback if commit fails - SCRIPT = f"""if 1: - import sqlite3 - def wait(): - print("started") - assert "database is locked" in input() - - cx = sqlite3.connect("{TESTFN}", timeout={self.CONNECTION_TIMEOUT}) - cx.create_function("wait", 0, wait) - with cx: - cx.execute("create table t(t)") - try: - # execute two transactions; both will try to lock the db - cx.executescript(''' - -- start a transaction and wait for parent - begin transaction; - select * from t; - select wait(); - rollback; - - -- start a new transaction; would fail if parent holds lock - begin transaction; - select * from t; - rollback; - ''') - finally: - cx.close() - """ - - # spawn child process - proc = subprocess.Popen( - [sys.executable, "-c", SCRIPT], - encoding="utf-8", - bufsize=0, - stdin=subprocess.PIPE, - stdout=subprocess.PIPE, - ) - self.addCleanup(proc.communicate) - - # wait for child process to start - self.assertEqual("started", proc.stdout.readline().strip()) - - cx = sqlite.connect(TESTFN, timeout=self.CONNECTION_TIMEOUT) - try: # context manager should correctly release the db lock - with cx: - cx.execute("insert into t values('test')") - except sqlite.OperationalError as exc: - proc.stdin.write(str(exc)) - else: - proc.stdin.write("no error") - finally: - cx.close() - - # terminate child process - self.assertIsNone(proc.returncode) - try: - proc.communicate(input="end", timeout=SHORT_TIMEOUT) - except subprocess.TimeoutExpired: - proc.kill() - proc.communicate() - raise - self.assertEqual(proc.returncode, 0) - - -if __name__ == "__main__": - unittest.main() |