mirror of https://github.com/python/cpython
418 lines
17 KiB
Python
418 lines
17 KiB
Python
import datetime
|
|
import warnings
|
|
import weakref
|
|
import unittest
|
|
from test.support import gc_collect
|
|
from itertools import product
|
|
|
|
|
|
class Test_Assertions(unittest.TestCase):
|
|
def test_AlmostEqual(self):
|
|
self.assertAlmostEqual(1.00000001, 1.0)
|
|
self.assertNotAlmostEqual(1.0000001, 1.0)
|
|
self.assertRaises(self.failureException,
|
|
self.assertAlmostEqual, 1.0000001, 1.0)
|
|
self.assertRaises(self.failureException,
|
|
self.assertNotAlmostEqual, 1.00000001, 1.0)
|
|
|
|
self.assertAlmostEqual(1.1, 1.0, places=0)
|
|
self.assertRaises(self.failureException,
|
|
self.assertAlmostEqual, 1.1, 1.0, places=1)
|
|
|
|
self.assertAlmostEqual(0, .1+.1j, places=0)
|
|
self.assertNotAlmostEqual(0, .1+.1j, places=1)
|
|
self.assertRaises(self.failureException,
|
|
self.assertAlmostEqual, 0, .1+.1j, places=1)
|
|
self.assertRaises(self.failureException,
|
|
self.assertNotAlmostEqual, 0, .1+.1j, places=0)
|
|
|
|
self.assertAlmostEqual(float('inf'), float('inf'))
|
|
self.assertRaises(self.failureException, self.assertNotAlmostEqual,
|
|
float('inf'), float('inf'))
|
|
|
|
def test_AmostEqualWithDelta(self):
|
|
self.assertAlmostEqual(1.1, 1.0, delta=0.5)
|
|
self.assertAlmostEqual(1.0, 1.1, delta=0.5)
|
|
self.assertNotAlmostEqual(1.1, 1.0, delta=0.05)
|
|
self.assertNotAlmostEqual(1.0, 1.1, delta=0.05)
|
|
|
|
self.assertAlmostEqual(1.0, 1.0, delta=0.5)
|
|
self.assertRaises(self.failureException, self.assertNotAlmostEqual,
|
|
1.0, 1.0, delta=0.5)
|
|
|
|
self.assertRaises(self.failureException, self.assertAlmostEqual,
|
|
1.1, 1.0, delta=0.05)
|
|
self.assertRaises(self.failureException, self.assertNotAlmostEqual,
|
|
1.1, 1.0, delta=0.5)
|
|
|
|
self.assertRaises(TypeError, self.assertAlmostEqual,
|
|
1.1, 1.0, places=2, delta=2)
|
|
self.assertRaises(TypeError, self.assertNotAlmostEqual,
|
|
1.1, 1.0, places=2, delta=2)
|
|
|
|
first = datetime.datetime.now()
|
|
second = first + datetime.timedelta(seconds=10)
|
|
self.assertAlmostEqual(first, second,
|
|
delta=datetime.timedelta(seconds=20))
|
|
self.assertNotAlmostEqual(first, second,
|
|
delta=datetime.timedelta(seconds=5))
|
|
|
|
def test_assertRaises(self):
|
|
def _raise(e):
|
|
raise e
|
|
self.assertRaises(KeyError, _raise, KeyError)
|
|
self.assertRaises(KeyError, _raise, KeyError("key"))
|
|
try:
|
|
self.assertRaises(KeyError, lambda: None)
|
|
except self.failureException as e:
|
|
self.assertIn("KeyError not raised", str(e))
|
|
else:
|
|
self.fail("assertRaises() didn't fail")
|
|
try:
|
|
self.assertRaises(KeyError, _raise, ValueError)
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.fail("assertRaises() didn't let exception pass through")
|
|
with self.assertRaises(KeyError) as cm:
|
|
try:
|
|
raise KeyError
|
|
except Exception as e:
|
|
exc = e
|
|
raise
|
|
self.assertIs(cm.exception, exc)
|
|
|
|
with self.assertRaises(KeyError):
|
|
raise KeyError("key")
|
|
try:
|
|
with self.assertRaises(KeyError):
|
|
pass
|
|
except self.failureException as e:
|
|
self.assertIn("KeyError not raised", str(e))
|
|
else:
|
|
self.fail("assertRaises() didn't fail")
|
|
try:
|
|
with self.assertRaises(KeyError):
|
|
raise ValueError
|
|
except ValueError:
|
|
pass
|
|
else:
|
|
self.fail("assertRaises() didn't let exception pass through")
|
|
|
|
def test_assertRaises_frames_survival(self):
|
|
# Issue #9815: assertRaises should avoid keeping local variables
|
|
# in a traceback alive.
|
|
class A:
|
|
pass
|
|
wr = None
|
|
|
|
class Foo(unittest.TestCase):
|
|
|
|
def foo(self):
|
|
nonlocal wr
|
|
a = A()
|
|
wr = weakref.ref(a)
|
|
try:
|
|
raise OSError
|
|
except OSError:
|
|
raise ValueError
|
|
|
|
def test_functional(self):
|
|
self.assertRaises(ValueError, self.foo)
|
|
|
|
def test_with(self):
|
|
with self.assertRaises(ValueError):
|
|
self.foo()
|
|
|
|
Foo("test_functional").run()
|
|
gc_collect() # For PyPy or other GCs.
|
|
self.assertIsNone(wr())
|
|
Foo("test_with").run()
|
|
gc_collect() # For PyPy or other GCs.
|
|
self.assertIsNone(wr())
|
|
|
|
def testAssertNotRegex(self):
|
|
self.assertNotRegex('Ala ma kota', r'r+')
|
|
try:
|
|
self.assertNotRegex('Ala ma kota', r'k.t', 'Message')
|
|
except self.failureException as e:
|
|
self.assertIn('Message', e.args[0])
|
|
else:
|
|
self.fail('assertNotRegex should have failed.')
|
|
|
|
|
|
class TestLongMessage(unittest.TestCase):
|
|
"""Test that the individual asserts honour longMessage.
|
|
This actually tests all the message behaviour for
|
|
asserts that use longMessage."""
|
|
|
|
def setUp(self):
|
|
class TestableTestFalse(unittest.TestCase):
|
|
longMessage = False
|
|
failureException = self.failureException
|
|
|
|
def testTest(self):
|
|
pass
|
|
|
|
class TestableTestTrue(unittest.TestCase):
|
|
longMessage = True
|
|
failureException = self.failureException
|
|
|
|
def testTest(self):
|
|
pass
|
|
|
|
self.testableTrue = TestableTestTrue('testTest')
|
|
self.testableFalse = TestableTestFalse('testTest')
|
|
|
|
def testDefault(self):
|
|
self.assertTrue(unittest.TestCase.longMessage)
|
|
|
|
def test_formatMsg(self):
|
|
self.assertEqual(self.testableFalse._formatMessage(None, "foo"), "foo")
|
|
self.assertEqual(self.testableFalse._formatMessage("foo", "bar"), "foo")
|
|
|
|
self.assertEqual(self.testableTrue._formatMessage(None, "foo"), "foo")
|
|
self.assertEqual(self.testableTrue._formatMessage("foo", "bar"), "bar : foo")
|
|
|
|
# This blows up if _formatMessage uses string concatenation
|
|
self.testableTrue._formatMessage(object(), 'foo')
|
|
|
|
def test_formatMessage_unicode_error(self):
|
|
one = ''.join(chr(i) for i in range(255))
|
|
# this used to cause a UnicodeDecodeError constructing msg
|
|
self.testableTrue._formatMessage(one, '\uFFFD')
|
|
|
|
def assertMessages(self, methodName, args, errors):
|
|
"""
|
|
Check that methodName(*args) raises the correct error messages.
|
|
errors should be a list of 4 regex that match the error when:
|
|
1) longMessage = False and no msg passed;
|
|
2) longMessage = False and msg passed;
|
|
3) longMessage = True and no msg passed;
|
|
4) longMessage = True and msg passed;
|
|
"""
|
|
def getMethod(i):
|
|
useTestableFalse = i < 2
|
|
if useTestableFalse:
|
|
test = self.testableFalse
|
|
else:
|
|
test = self.testableTrue
|
|
return getattr(test, methodName)
|
|
|
|
for i, expected_regex in enumerate(errors):
|
|
testMethod = getMethod(i)
|
|
kwargs = {}
|
|
withMsg = i % 2
|
|
if withMsg:
|
|
kwargs = {"msg": "oops"}
|
|
|
|
with self.assertRaisesRegex(self.failureException,
|
|
expected_regex=expected_regex):
|
|
testMethod(*args, **kwargs)
|
|
|
|
def testAssertTrue(self):
|
|
self.assertMessages('assertTrue', (False,),
|
|
["^False is not true$", "^oops$", "^False is not true$",
|
|
"^False is not true : oops$"])
|
|
|
|
def testAssertFalse(self):
|
|
self.assertMessages('assertFalse', (True,),
|
|
["^True is not false$", "^oops$", "^True is not false$",
|
|
"^True is not false : oops$"])
|
|
|
|
def testNotEqual(self):
|
|
self.assertMessages('assertNotEqual', (1, 1),
|
|
["^1 == 1$", "^oops$", "^1 == 1$",
|
|
"^1 == 1 : oops$"])
|
|
|
|
def testAlmostEqual(self):
|
|
self.assertMessages(
|
|
'assertAlmostEqual', (1, 2),
|
|
[r"^1 != 2 within 7 places \(1 difference\)$", "^oops$",
|
|
r"^1 != 2 within 7 places \(1 difference\)$",
|
|
r"^1 != 2 within 7 places \(1 difference\) : oops$"])
|
|
|
|
def testNotAlmostEqual(self):
|
|
self.assertMessages('assertNotAlmostEqual', (1, 1),
|
|
["^1 == 1 within 7 places$", "^oops$",
|
|
"^1 == 1 within 7 places$", "^1 == 1 within 7 places : oops$"])
|
|
|
|
def test_baseAssertEqual(self):
|
|
self.assertMessages('_baseAssertEqual', (1, 2),
|
|
["^1 != 2$", "^oops$", "^1 != 2$", "^1 != 2 : oops$"])
|
|
|
|
def testAssertSequenceEqual(self):
|
|
# Error messages are multiline so not testing on full message
|
|
# assertTupleEqual and assertListEqual delegate to this method
|
|
self.assertMessages('assertSequenceEqual', ([], [None]),
|
|
[r"\+ \[None\]$", "^oops$", r"\+ \[None\]$",
|
|
r"\+ \[None\] : oops$"])
|
|
|
|
def testAssertSetEqual(self):
|
|
self.assertMessages('assertSetEqual', (set(), set([None])),
|
|
["None$", "^oops$", "None$",
|
|
"None : oops$"])
|
|
|
|
def testAssertIn(self):
|
|
self.assertMessages('assertIn', (None, []),
|
|
[r'^None not found in \[\]$', "^oops$",
|
|
r'^None not found in \[\]$',
|
|
r'^None not found in \[\] : oops$'])
|
|
|
|
def testAssertNotIn(self):
|
|
self.assertMessages('assertNotIn', (None, [None]),
|
|
[r'^None unexpectedly found in \[None\]$', "^oops$",
|
|
r'^None unexpectedly found in \[None\]$',
|
|
r'^None unexpectedly found in \[None\] : oops$'])
|
|
|
|
def testAssertDictEqual(self):
|
|
self.assertMessages('assertDictEqual', ({}, {'key': 'value'}),
|
|
[r"\+ \{'key': 'value'\}$", "^oops$",
|
|
r"\+ \{'key': 'value'\}$",
|
|
r"\+ \{'key': 'value'\} : oops$"])
|
|
|
|
def testAssertMultiLineEqual(self):
|
|
self.assertMessages('assertMultiLineEqual', ("", "foo"),
|
|
[r"\+ foo\n$", "^oops$",
|
|
r"\+ foo\n$",
|
|
r"\+ foo\n : oops$"])
|
|
|
|
def testAssertLess(self):
|
|
self.assertMessages('assertLess', (2, 1),
|
|
["^2 not less than 1$", "^oops$",
|
|
"^2 not less than 1$", "^2 not less than 1 : oops$"])
|
|
|
|
def testAssertLessEqual(self):
|
|
self.assertMessages('assertLessEqual', (2, 1),
|
|
["^2 not less than or equal to 1$", "^oops$",
|
|
"^2 not less than or equal to 1$",
|
|
"^2 not less than or equal to 1 : oops$"])
|
|
|
|
def testAssertGreater(self):
|
|
self.assertMessages('assertGreater', (1, 2),
|
|
["^1 not greater than 2$", "^oops$",
|
|
"^1 not greater than 2$",
|
|
"^1 not greater than 2 : oops$"])
|
|
|
|
def testAssertGreaterEqual(self):
|
|
self.assertMessages('assertGreaterEqual', (1, 2),
|
|
["^1 not greater than or equal to 2$", "^oops$",
|
|
"^1 not greater than or equal to 2$",
|
|
"^1 not greater than or equal to 2 : oops$"])
|
|
|
|
def testAssertIsNone(self):
|
|
self.assertMessages('assertIsNone', ('not None',),
|
|
["^'not None' is not None$", "^oops$",
|
|
"^'not None' is not None$",
|
|
"^'not None' is not None : oops$"])
|
|
|
|
def testAssertIsNotNone(self):
|
|
self.assertMessages('assertIsNotNone', (None,),
|
|
["^unexpectedly None$", "^oops$",
|
|
"^unexpectedly None$",
|
|
"^unexpectedly None : oops$"])
|
|
|
|
def testAssertIs(self):
|
|
self.assertMessages('assertIs', (None, 'foo'),
|
|
["^None is not 'foo'$", "^oops$",
|
|
"^None is not 'foo'$",
|
|
"^None is not 'foo' : oops$"])
|
|
|
|
def testAssertIsNot(self):
|
|
self.assertMessages('assertIsNot', (None, None),
|
|
["^unexpectedly identical: None$", "^oops$",
|
|
"^unexpectedly identical: None$",
|
|
"^unexpectedly identical: None : oops$"])
|
|
|
|
def testAssertRegex(self):
|
|
self.assertMessages('assertRegex', ('foo', 'bar'),
|
|
["^Regex didn't match:",
|
|
"^oops$",
|
|
"^Regex didn't match:",
|
|
"^Regex didn't match: (.*) : oops$"])
|
|
|
|
def testAssertNotRegex(self):
|
|
self.assertMessages('assertNotRegex', ('foo', 'foo'),
|
|
["^Regex matched:",
|
|
"^oops$",
|
|
"^Regex matched:",
|
|
"^Regex matched: (.*) : oops$"])
|
|
|
|
|
|
def assertMessagesCM(self, methodName, args, func, errors):
|
|
"""
|
|
Check that the correct error messages are raised while executing:
|
|
with method(*args):
|
|
func()
|
|
*errors* should be a list of 4 regex that match the error when:
|
|
1) longMessage = False and no msg passed;
|
|
2) longMessage = False and msg passed;
|
|
3) longMessage = True and no msg passed;
|
|
4) longMessage = True and msg passed;
|
|
"""
|
|
p = product((self.testableFalse, self.testableTrue),
|
|
({}, {"msg": "oops"}))
|
|
for (cls, kwargs), err in zip(p, errors):
|
|
method = getattr(cls, methodName)
|
|
with self.assertRaisesRegex(cls.failureException, err):
|
|
with method(*args, **kwargs) as cm:
|
|
func()
|
|
|
|
def testAssertRaises(self):
|
|
self.assertMessagesCM('assertRaises', (TypeError,), lambda: None,
|
|
['^TypeError not raised$', '^oops$',
|
|
'^TypeError not raised$',
|
|
'^TypeError not raised : oops$'])
|
|
|
|
def testAssertRaisesRegex(self):
|
|
# test error not raised
|
|
self.assertMessagesCM('assertRaisesRegex', (TypeError, 'unused regex'),
|
|
lambda: None,
|
|
['^TypeError not raised$', '^oops$',
|
|
'^TypeError not raised$',
|
|
'^TypeError not raised : oops$'])
|
|
# test error raised but with wrong message
|
|
def raise_wrong_message():
|
|
raise TypeError('foo')
|
|
self.assertMessagesCM('assertRaisesRegex', (TypeError, 'regex'),
|
|
raise_wrong_message,
|
|
['^"regex" does not match "foo"$', '^oops$',
|
|
'^"regex" does not match "foo"$',
|
|
'^"regex" does not match "foo" : oops$'])
|
|
|
|
def testAssertWarns(self):
|
|
self.assertMessagesCM('assertWarns', (UserWarning,), lambda: None,
|
|
['^UserWarning not triggered$', '^oops$',
|
|
'^UserWarning not triggered$',
|
|
'^UserWarning not triggered : oops$'])
|
|
|
|
def test_assertNotWarns(self):
|
|
def warn_future():
|
|
warnings.warn('xyz', FutureWarning, stacklevel=2)
|
|
self.assertMessagesCM('_assertNotWarns', (FutureWarning,),
|
|
warn_future,
|
|
['^FutureWarning triggered$',
|
|
'^oops$',
|
|
'^FutureWarning triggered$',
|
|
'^FutureWarning triggered : oops$'])
|
|
|
|
def testAssertWarnsRegex(self):
|
|
# test error not raised
|
|
self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'unused regex'),
|
|
lambda: None,
|
|
['^UserWarning not triggered$', '^oops$',
|
|
'^UserWarning not triggered$',
|
|
'^UserWarning not triggered : oops$'])
|
|
# test warning raised but with wrong message
|
|
def raise_wrong_message():
|
|
warnings.warn('foo')
|
|
self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'regex'),
|
|
raise_wrong_message,
|
|
['^"regex" does not match "foo"$', '^oops$',
|
|
'^"regex" does not match "foo"$',
|
|
'^"regex" does not match "foo" : oops$'])
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|