#-*- coding: iso-8859-1 -*-
# 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 subprocess
import threading
import unittest
import sqlite3 as sqlite
import sys
from test.support import SHORT_TIMEOUT, TESTFN, unlink
class ModuleTests(unittest.TestCase):
def CheckAPILevel(self):
self.assertEqual(sqlite.apilevel, "2.0",
"apilevel is %s, should be 2.0" % sqlite.apilevel)
def CheckThreadSafety(self):
self.assertEqual(sqlite.threadsafety, 1,
"threadsafety is %d, should be 1" % sqlite.threadsafety)
def CheckParamStyle(self):
self.assertEqual(sqlite.paramstyle, "qmark",
"paramstyle is '%s', should be 'qmark'" %
sqlite.paramstyle)
def CheckWarning(self):
self.assertTrue(issubclass(sqlite.Warning, Exception),
"Warning is not a subclass of Exception")
def CheckError(self):
self.assertTrue(issubclass(sqlite.Error, Exception),
"Error is not a subclass of Exception")
def CheckInterfaceError(self):
self.assertTrue(issubclass(sqlite.InterfaceError, sqlite.Error),
"InterfaceError is not a subclass of Error")
def CheckDatabaseError(self):
self.assertTrue(issubclass(sqlite.DatabaseError, sqlite.Error),
"DatabaseError is not a subclass of Error")
def CheckDataError(self):
self.assertTrue(issubclass(sqlite.DataError, sqlite.DatabaseError),
"DataError is not a subclass of DatabaseError")
def CheckOperationalError(self):
self.assertTrue(issubclass(sqlite.OperationalError, sqlite.DatabaseError),
"OperationalError is not a subclass of DatabaseError")
def CheckIntegrityError(self):
self.assertTrue(issubclass(sqlite.IntegrityError, sqlite.DatabaseError),
"IntegrityError is not a subclass of DatabaseError")
def CheckInternalError(self):
self.assertTrue(issubclass(sqlite.InternalError, sqlite.DatabaseError),
"InternalError is not a subclass of DatabaseError")
def CheckProgrammingError(self):
self.assertTrue(issubclass(sqlite.ProgrammingError, sqlite.DatabaseError),
"ProgrammingError is not a subclass of DatabaseError")
def CheckNotSupportedError(self):
self.assertTrue(issubclass(sqlite.NotSupportedError,
sqlite.DatabaseError),
"NotSupportedError is not a subclass of DatabaseError")
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 CheckCommit(self):
self.cx.commit()
def CheckCommitAfterNoChanges(self):
"""
A commit should also work when no changes were made to the database.
"""
self.cx.commit()
self.cx.commit()
def CheckRollback(self):
self.cx.rollback()
def CheckRollbackAfterNoChanges(self):
"""
A rollback should also work when no changes were made to the database.
"""
self.cx.rollback()
self.cx.rollback()
def CheckCursor(self):
cu = self.cx.cursor()
def CheckFailedOpen(self):
YOU_CANNOT_OPEN_THIS = "/foo/bar/bla/23534/mydb.db"
with self.assertRaises(sqlite.OperationalError):
con = sqlite.connect(YOU_CANNOT_OPEN_THIS)
def CheckClose(self):
self.cx.close()
def CheckExceptions(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 CheckInTransaction(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 CheckInTransactionRO(self):
with self.assertRaises(AttributeError):
self.cx.in_transaction = True
def CheckOpenWithPathLikeObject(self):
""" Checks that we can successfully connect to a database using an object that
is PathLike, i.e. has __fspath__(). """
self.addCleanup(unlink, TESTFN)
class Path:
def __fspath__(self):
return TESTFN
path = Path()
with sqlite.connect(path) as cx:
cx.execute('create table test(id integer)')
def CheckOpenUri(self):
if sqlite.sqlite_version_info < (3, 7, 7):
with self.assertRaises(sqlite.NotSupportedError):
sqlite.connect(':memory:', uri=True)
return
self.addCleanup(unlink, TESTFN)
with sqlite.connect(TESTFN) as cx:
cx.execute('create table test(id integer)')
with sqlite.connect('file:' + TESTFN, uri=True) as cx:
cx.execute('insert into test(id) values(0)')
with sqlite.connect('file:' + TESTFN + '?mode=ro', uri=True) as cx:
with self.assertRaises(sqlite.OperationalError):
cx.execute('insert into test(id) values(1)')
@unittest.skipIf(sqlite.sqlite_version_info >= (3, 3, 1),
'needs sqlite versions older than 3.3.1')
def CheckSameThreadErrorOnOldVersion(self):
with self.assertRaises(sqlite.NotSupportedError) as cm:
sqlite.connect(':memory:', check_same_thread=False)
self.assertEqual(str(cm.exception), 'shared connections not available')
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 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 CheckExecuteNoArgs(self):
self.cu.execute("delete from test")
def CheckExecuteIllegalSql(self):
with self.assertRaises(sqlite.OperationalError):
self.cu.execute("select asdf")
def CheckExecuteTooMuchSql(self):
with self.assertRaises(sqlite.Warning):
self.cu.execute("select 5+4; select 4+5")
def CheckExecuteTooMuchSql2(self):
self.cu.execute("select 5+4; -- foo bar")
def CheckExecuteTooMuchSql3(self):
self.cu.execute("""
select 5+4;
/*
foo
*/
""")
def CheckExecuteWrongSqlArg(self):
with self.assertRaises(TypeError):
self.cu.execute(42)
def CheckExecuteArgInt(self):
self.cu.execute("insert into test(id) values (?)", (42,))
def CheckExecuteArgFloat(self):
self.cu.execute("insert into test(income) values (?)", (2500.32,))
def CheckExecuteArgString(self):
self.cu.execute("insert into test(name) values (?)", ("Hugo",))
def CheckExecuteArgStringWithZeroByte(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 CheckExecuteNonIterable(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 CheckExecuteWrongNoOfArgs1(self):
# too many parameters
with self.assertRaises(sqlite.ProgrammingError):
self.cu.execute("insert into test(id) values (?)", (17, "Egon"))
def CheckExecuteWrongNoOfArgs2(self):
# too little parameters
with self.assertRaises(sqlite.ProgrammingError):
self.cu.execute("insert into test(id) values (?)")
def CheckExecuteWrongNoOfArgs3(self):
# no parameters, parameters are needed
with self.assertRaises(sqlite.ProgrammingError):
self.cu.execute("insert into test(id) values (?)")
def CheckExecuteParamList(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 CheckExecuteParamSequence(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 CheckExecuteParamSequenceBadLen(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 CheckExecuteDictMapping(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 CheckExecuteDictMapping_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 CheckExecuteDictMappingTooLittleArgs(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 CheckExecuteDictMappingNoArgs(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 CheckExecuteDictMappingUnnamed(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 CheckClose(self):
self.cu.close()
def CheckRowcountExecute(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 CheckRowcountSelect(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 CheckRowcountExecutemany(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 CheckTotalChanges(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 CheckExecuteManySequence(self):
self.cu.executemany("insert into test(income) values (?)", [(x,) for x in range(100, 110)])
def CheckExecuteManyIterator(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 CheckExecuteManyGenerator(self):
def mygen():
for i in range(5):
yield (i,)
self.cu.executemany("insert into test(income) values (?)", mygen())
def CheckExecuteManyWrongSqlArg(self):
with self.assertRaises(TypeError):
self.cu.executemany(42, [(3,)])
def CheckExecuteManySelect(self):
with self.assertRaises(sqlite.ProgrammingError):
self.cu.executemany("select ?", [(3,)])
def CheckExecuteManyNotIterable(self):
with self.assertRaises(TypeError):
self.cu.executemany("insert into test(income) values (?)", 42)
def CheckFetchIter(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 CheckFetchone(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 CheckFetchoneNoStatement(self):
cur = self.cx.cursor()
row = cur.fetchone()
self.assertEqual(row, None)
def CheckArraySize(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 CheckFetchmany(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 CheckFetchmanyKwArg(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 CheckFetchall(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 CheckSetinputsizes(self):
self.cu.setinputsizes([3, 4, 5])
def CheckSetoutputsize(self):
self.cu.setoutputsize(5, 0)
def CheckSetoutputsizeNoColumn(self):
self.cu.setoutputsize(42)
def CheckCursorConnection(self):
# Optional DB-API extension.
self.assertEqual(self.cu.connection, self.cx)
def CheckWrongCursorCallable(self):
with self.assertRaises(TypeError):
def f(): pass
cur = self.cx.cursor(f)
def CheckCursorWrongClass(self):
class Foo: pass
foo = Foo()
with self.assertRaises(TypeError):
cur = sqlite.Cursor(foo)
def CheckLastRowIDOnReplace(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 CheckLastRowIDOnIgnore(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 CheckLastRowIDInsertOR(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)
class ThreadTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
self.cur = self.con.cursor()
self.cur.execute("create table test(id integer primary key, name text, bin binary, ratio number, ts timestamp)")
def tearDown(self):
self.cur.close()
self.con.close()
def CheckConCursor(self):
def run(con, errors):
try:
cur = con.cursor()
errors.append("did not raise ProgrammingError")
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 CheckConCommit(self):
def run(con, errors):
try:
con.commit()
errors.append("did not raise ProgrammingError")
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 CheckConRollback(self):
def run(con, errors):
try:
con.rollback()
errors.append("did not raise ProgrammingError")
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 CheckConClose(self):
def run(con, errors):
try:
con.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={"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(b"\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.assertEqual(res, 5)
def CheckScriptSyntaxError(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 CheckScriptErrorNormal(self):
con = sqlite.connect(":memory:")
cur = con.cursor()
with self.assertRaises(sqlite.OperationalError):
cur.executescript("create table test(sadfsadfdsa); select foo from hurz;")
def CheckCursorExecutescriptAsBytes(self):
con = sqlite.connect(":memory:")
cur = con.cursor()
with self.assertRaises(ValueError) as cm:
cur.executescript(b"create table test(foo); insert into test(foo) values (5);")
self.assertEqual(str(cm.exception), 'script argument must be unicode.')
def CheckConnectionExecute(self):
con = sqlite.connect(":memory:")
result = con.execute("select 5").fetchone()[0]
self.assertEqual(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.assertEqual(result[0][0], 3, "Basic test of Connection.executemany")
self.assertEqual(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.assertEqual(result, 5, "Basic test of Connection.executescript")
class ClosedConTests(unittest.TestCase):
def CheckClosedConCursor(self):
con = sqlite.connect(":memory:")
con.close()
with self.assertRaises(sqlite.ProgrammingError):
cur = con.cursor()
def CheckClosedConCommit(self):
con = sqlite.connect(":memory:")
con.close()
with self.assertRaises(sqlite.ProgrammingError):
con.commit()
def CheckClosedConRollback(self):
con = sqlite.connect(":memory:")
con.close()
with self.assertRaises(sqlite.ProgrammingError):
con.rollback()
def CheckClosedCurExecute(self):
con = sqlite.connect(":memory:")
cur = con.cursor()
con.close()
with self.assertRaises(sqlite.ProgrammingError):
cur.execute("select 4")
def CheckClosedCreateFunction(self):
con = sqlite.connect(":memory:")
con.close()
def f(x): return 17
with self.assertRaises(sqlite.ProgrammingError):
con.create_function("foo", 1, f)
def CheckClosedCreateAggregate(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 CheckClosedSetAuthorizer(self):
con = sqlite.connect(":memory:")
con.close()
def authorizer(*args):
return sqlite.DENY
with self.assertRaises(sqlite.ProgrammingError):
con.set_authorizer(authorizer)
def CheckClosedSetProgressCallback(self):
con = sqlite.connect(":memory:")
con.close()
def progress(): pass
with self.assertRaises(sqlite.ProgrammingError):
con.set_progress_handler(progress, 100)
def CheckClosedCall(self):
con = sqlite.connect(":memory:")
con.close()
with self.assertRaises(sqlite.ProgrammingError):
con()
class ClosedCurTests(unittest.TestCase):
def CheckClosed(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 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')])
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)
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_con_suite = unittest.makeSuite(ClosedConTests, "Check")
closed_cur_suite = unittest.makeSuite(ClosedCurTests, "Check")
on_conflict_suite = unittest.makeSuite(SqliteOnConflictTests, "Check")
uninit_con_suite = unittest.makeSuite(UninitialisedConnectionTests)
multiproc_con_suite = unittest.makeSuite(MultiprocessTests)
return unittest.TestSuite((
module_suite, connection_suite, cursor_suite, thread_suite,
constructor_suite, ext_suite, closed_con_suite, closed_cur_suite,
on_conflict_suite, uninit_con_suite, multiproc_con_suite,
))
def test():
runner = unittest.TextTestRunner()
runner.run(suite())
if __name__ == "__main__":
test()