mirror of
https://github.com/python/cpython.git
synced 2026-05-08 13:40:46 -04:00
Serhiy Storchaka
3e19409d64
Use unittest discover instead of manually enumerating all test modules and classes. Also add support for filtering them by pattern.
311 lines
12 KiB
Python
311 lines
12 KiB
Python
# pysqlite2/test/factory.py: tests for the various factories in pysqlite
|
|
#
|
|
# 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 unittest
|
|
import sqlite3 as sqlite
|
|
from collections.abc import Sequence
|
|
|
|
|
|
def dict_factory(cursor, row):
|
|
d = {}
|
|
for idx, col in enumerate(cursor.description):
|
|
d[col[0]] = row[idx]
|
|
return d
|
|
|
|
class MyCursor(sqlite.Cursor):
|
|
def __init__(self, *args, **kwargs):
|
|
sqlite.Cursor.__init__(self, *args, **kwargs)
|
|
self.row_factory = dict_factory
|
|
|
|
class ConnectionFactoryTests(unittest.TestCase):
|
|
def test_connection_factories(self):
|
|
class DefectFactory(sqlite.Connection):
|
|
def __init__(self, *args, **kwargs):
|
|
return None
|
|
class OkFactory(sqlite.Connection):
|
|
def __init__(self, *args, **kwargs):
|
|
sqlite.Connection.__init__(self, *args, **kwargs)
|
|
|
|
for factory in DefectFactory, OkFactory:
|
|
with self.subTest(factory=factory):
|
|
con = sqlite.connect(":memory:", factory=factory)
|
|
self.assertIsInstance(con, factory)
|
|
|
|
|
|
class CursorFactoryTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.con = sqlite.connect(":memory:")
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
def test_is_instance(self):
|
|
cur = self.con.cursor()
|
|
self.assertIsInstance(cur, sqlite.Cursor)
|
|
cur = self.con.cursor(MyCursor)
|
|
self.assertIsInstance(cur, MyCursor)
|
|
cur = self.con.cursor(factory=lambda con: MyCursor(con))
|
|
self.assertIsInstance(cur, MyCursor)
|
|
|
|
def test_invalid_factory(self):
|
|
# not a callable at all
|
|
self.assertRaises(TypeError, self.con.cursor, None)
|
|
# invalid callable with not exact one argument
|
|
self.assertRaises(TypeError, self.con.cursor, lambda: None)
|
|
# invalid callable returning non-cursor
|
|
self.assertRaises(TypeError, self.con.cursor, lambda con: None)
|
|
|
|
class RowFactoryTestsBackwardsCompat(unittest.TestCase):
|
|
def setUp(self):
|
|
self.con = sqlite.connect(":memory:")
|
|
|
|
def test_is_produced_by_factory(self):
|
|
cur = self.con.cursor(factory=MyCursor)
|
|
cur.execute("select 4+5 as foo")
|
|
row = cur.fetchone()
|
|
self.assertIsInstance(row, dict)
|
|
cur.close()
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
class RowFactoryTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.con = sqlite.connect(":memory:")
|
|
|
|
def test_custom_factory(self):
|
|
self.con.row_factory = lambda cur, row: list(row)
|
|
row = self.con.execute("select 1, 2").fetchone()
|
|
self.assertIsInstance(row, list)
|
|
|
|
def test_sqlite_row_index(self):
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as a_1, 2 as b").fetchone()
|
|
self.assertIsInstance(row, sqlite.Row)
|
|
|
|
self.assertEqual(row["a_1"], 1, "by name: wrong result for column 'a_1'")
|
|
self.assertEqual(row["b"], 2, "by name: wrong result for column 'b'")
|
|
|
|
self.assertEqual(row["A_1"], 1, "by name: wrong result for column 'A_1'")
|
|
self.assertEqual(row["B"], 2, "by name: wrong result for column 'B'")
|
|
|
|
self.assertEqual(row[0], 1, "by index: wrong result for column 0")
|
|
self.assertEqual(row[1], 2, "by index: wrong result for column 1")
|
|
self.assertEqual(row[-1], 2, "by index: wrong result for column -1")
|
|
self.assertEqual(row[-2], 1, "by index: wrong result for column -2")
|
|
|
|
with self.assertRaises(IndexError):
|
|
row['c']
|
|
with self.assertRaises(IndexError):
|
|
row['a_\x11']
|
|
with self.assertRaises(IndexError):
|
|
row['a\x7f1']
|
|
with self.assertRaises(IndexError):
|
|
row[2]
|
|
with self.assertRaises(IndexError):
|
|
row[-3]
|
|
with self.assertRaises(IndexError):
|
|
row[2**1000]
|
|
with self.assertRaises(IndexError):
|
|
row[complex()] # index must be int or string
|
|
|
|
def test_sqlite_row_index_unicode(self):
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as \xff").fetchone()
|
|
self.assertEqual(row["\xff"], 1)
|
|
with self.assertRaises(IndexError):
|
|
row['\u0178']
|
|
with self.assertRaises(IndexError):
|
|
row['\xdf']
|
|
|
|
def test_sqlite_row_slice(self):
|
|
# A sqlite.Row can be sliced like a list.
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1, 2, 3, 4").fetchone()
|
|
self.assertEqual(row[0:0], ())
|
|
self.assertEqual(row[0:1], (1,))
|
|
self.assertEqual(row[1:3], (2, 3))
|
|
self.assertEqual(row[3:1], ())
|
|
# Explicit bounds are optional.
|
|
self.assertEqual(row[1:], (2, 3, 4))
|
|
self.assertEqual(row[:3], (1, 2, 3))
|
|
# Slices can use negative indices.
|
|
self.assertEqual(row[-2:-1], (3,))
|
|
self.assertEqual(row[-2:], (3, 4))
|
|
# Slicing supports steps.
|
|
self.assertEqual(row[0:4:2], (1, 3))
|
|
self.assertEqual(row[3:0:-2], (4, 2))
|
|
|
|
def test_sqlite_row_iter(self):
|
|
"""Checks if the row object is iterable"""
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
for col in row:
|
|
pass
|
|
|
|
def test_sqlite_row_as_tuple(self):
|
|
"""Checks if the row object can be converted to a tuple"""
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
t = tuple(row)
|
|
self.assertEqual(t, (row['a'], row['b']))
|
|
|
|
def test_sqlite_row_as_dict(self):
|
|
"""Checks if the row object can be correctly converted to a dictionary"""
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
d = dict(row)
|
|
self.assertEqual(d["a"], row["a"])
|
|
self.assertEqual(d["b"], row["b"])
|
|
|
|
def test_sqlite_row_hash_cmp(self):
|
|
"""Checks if the row object compares and hashes correctly"""
|
|
self.con.row_factory = sqlite.Row
|
|
row_1 = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
row_2 = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
row_3 = self.con.execute("select 1 as a, 3 as b").fetchone()
|
|
row_4 = self.con.execute("select 1 as b, 2 as a").fetchone()
|
|
row_5 = self.con.execute("select 2 as b, 1 as a").fetchone()
|
|
|
|
self.assertTrue(row_1 == row_1)
|
|
self.assertTrue(row_1 == row_2)
|
|
self.assertFalse(row_1 == row_3)
|
|
self.assertFalse(row_1 == row_4)
|
|
self.assertFalse(row_1 == row_5)
|
|
self.assertFalse(row_1 == object())
|
|
|
|
self.assertFalse(row_1 != row_1)
|
|
self.assertFalse(row_1 != row_2)
|
|
self.assertTrue(row_1 != row_3)
|
|
self.assertTrue(row_1 != row_4)
|
|
self.assertTrue(row_1 != row_5)
|
|
self.assertTrue(row_1 != object())
|
|
|
|
with self.assertRaises(TypeError):
|
|
row_1 > row_2
|
|
with self.assertRaises(TypeError):
|
|
row_1 < row_2
|
|
with self.assertRaises(TypeError):
|
|
row_1 >= row_2
|
|
with self.assertRaises(TypeError):
|
|
row_1 <= row_2
|
|
|
|
self.assertEqual(hash(row_1), hash(row_2))
|
|
|
|
def test_sqlite_row_as_sequence(self):
|
|
""" Checks if the row object can act like a sequence """
|
|
self.con.row_factory = sqlite.Row
|
|
row = self.con.execute("select 1 as a, 2 as b").fetchone()
|
|
|
|
as_tuple = tuple(row)
|
|
self.assertEqual(list(reversed(row)), list(reversed(as_tuple)))
|
|
self.assertIsInstance(row, Sequence)
|
|
|
|
def test_fake_cursor_class(self):
|
|
# Issue #24257: Incorrect use of PyObject_IsInstance() caused
|
|
# segmentation fault.
|
|
# Issue #27861: Also applies for cursor factory.
|
|
class FakeCursor(str):
|
|
__class__ = sqlite.Cursor
|
|
self.con.row_factory = sqlite.Row
|
|
self.assertRaises(TypeError, self.con.cursor, FakeCursor)
|
|
self.assertRaises(TypeError, sqlite.Row, FakeCursor(), ())
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
class TextFactoryTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.con = sqlite.connect(":memory:")
|
|
|
|
def test_unicode(self):
|
|
austria = "Österreich"
|
|
row = self.con.execute("select ?", (austria,)).fetchone()
|
|
self.assertEqual(type(row[0]), str, "type of row[0] must be unicode")
|
|
|
|
def test_string(self):
|
|
self.con.text_factory = bytes
|
|
austria = "Österreich"
|
|
row = self.con.execute("select ?", (austria,)).fetchone()
|
|
self.assertEqual(type(row[0]), bytes, "type of row[0] must be bytes")
|
|
self.assertEqual(row[0], austria.encode("utf-8"), "column must equal original data in UTF-8")
|
|
|
|
def test_custom(self):
|
|
self.con.text_factory = lambda x: str(x, "utf-8", "ignore")
|
|
austria = "Österreich"
|
|
row = self.con.execute("select ?", (austria,)).fetchone()
|
|
self.assertEqual(type(row[0]), str, "type of row[0] must be unicode")
|
|
self.assertTrue(row[0].endswith("reich"), "column must contain original data")
|
|
|
|
def test_optimized_unicode(self):
|
|
# OptimizedUnicode is deprecated as of Python 3.10
|
|
with self.assertWarns(DeprecationWarning) as cm:
|
|
self.con.text_factory = sqlite.OptimizedUnicode
|
|
self.assertIn("factory.py", cm.filename)
|
|
austria = "Österreich"
|
|
germany = "Deutchland"
|
|
a_row = self.con.execute("select ?", (austria,)).fetchone()
|
|
d_row = self.con.execute("select ?", (germany,)).fetchone()
|
|
self.assertEqual(type(a_row[0]), str, "type of non-ASCII row must be str")
|
|
self.assertEqual(type(d_row[0]), str, "type of ASCII-only row must be str")
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
class TextFactoryTestsWithEmbeddedZeroBytes(unittest.TestCase):
|
|
def setUp(self):
|
|
self.con = sqlite.connect(":memory:")
|
|
self.con.execute("create table test (value text)")
|
|
self.con.execute("insert into test (value) values (?)", ("a\x00b",))
|
|
|
|
def test_string(self):
|
|
# text_factory defaults to str
|
|
row = self.con.execute("select value from test").fetchone()
|
|
self.assertIs(type(row[0]), str)
|
|
self.assertEqual(row[0], "a\x00b")
|
|
|
|
def test_bytes(self):
|
|
self.con.text_factory = bytes
|
|
row = self.con.execute("select value from test").fetchone()
|
|
self.assertIs(type(row[0]), bytes)
|
|
self.assertEqual(row[0], b"a\x00b")
|
|
|
|
def test_bytearray(self):
|
|
self.con.text_factory = bytearray
|
|
row = self.con.execute("select value from test").fetchone()
|
|
self.assertIs(type(row[0]), bytearray)
|
|
self.assertEqual(row[0], b"a\x00b")
|
|
|
|
def test_custom(self):
|
|
# A custom factory should receive a bytes argument
|
|
self.con.text_factory = lambda x: x
|
|
row = self.con.execute("select value from test").fetchone()
|
|
self.assertIs(type(row[0]), bytes)
|
|
self.assertEqual(row[0], b"a\x00b")
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|