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Demonstrating how bad the wrapped message is, they should be the same #57

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Demonstrating how bad the wrapped message is, they should be the same #57

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24 changes: 24 additions & 0 deletions test_pytest_mock.py
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Original file line number Diff line number Diff line change
Expand Up @@ -498,3 +498,27 @@ def test_foo(mocker):
traceback_lines = [x for x in result.stdout.str().splitlines()
if 'Traceback (most recent call last)' in x]
assert len(traceback_lines) == 1 # make sure there are no duplicated tracebacks (#44)


def test_assertion_error_is_not_descriptive(mocker):
"""Demonstrate that assert_wrapper does really bad things to assertion messages"""
import mock
from pytest_mock import _mock_module_originals
mocker_mock = mocker.patch('os.remove')
mock_mock = mock.Mock()
assert_called_with = _mock_module_originals['assert_called_with']

mocker_mock(a=1, b=2)
mock_mock(a=1, b=2)

try:
mocker_mock.assert_called_once_with(1, 2)
except AssertionError as e:
mocker_error_message = e.msg

try:
assert_called_with(mock_mock, 1, 2)
except AssertionError as e:
mock_error_message = e.msg

assert mock_error_message == mocker_error_message