New submission from Eli Rose:
When I call unittest.TestCase.assertEqual(a, b) on e.g. two unequal
dictionaries, I get a nice diff pointing me to the differences.
>>> class A(unittest.TestCase):
... def test_foo(self):
... self.assertEqual(dict(foo='bar', zab='zar'), dict(foo='bar',
zab='zab'))
>>> unittest.main()
======================================================================
FAIL: test_foo (__main__.A)
----------------------------------------------------------------------
Traceback (most recent call last):
File "<stdin>", line 3, in test_foo
AssertionError: {'foo': 'bar', 'zab': 'zar'} != {'foo': 'bar', 'zab': 'zab'}
- {'foo': 'bar', 'zab': 'zar'}
? ^
+ {'foo': 'bar', 'zab': 'zab'}
? ^
----------------------------------------------------------------------
Ran 1 test in 0.001s
FAILED (failures=1)
But when unittest.mock.Mock.assert_called_with fails, I don't get this nice
diff output.
This would be very helpful in my present case (asserting that a function with
many keyword arguments is called correctly).
----------
components: Tests
messages: 275481
nosy: Eli Rose
priority: normal
severity: normal
status: open
title: Diff for visually comparing actual with expected in
mock.assert_called_with.
type: enhancement
versions: Python 2.7, Python 3.3
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Python tracker <[email protected]>
<http://bugs.python.org/issue28054>
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