pytest introspection with assert_called_once_with()

[The-Compiler]

When a mock is called multiple times (with the right arguments, at some point) but only one call is expected:

def test_foo(mocker):
    mock = mocker.Mock()
    mock('foo')
    mock('test')
    mock.assert_called_once_with('test')

the output is:

>       mock.assert_called_once_with('test')
E       AssertionError: Expected 'mock' to be called once. Called 2 times.
E       
E       pytest introspection follows:

test_x.py:5: AssertionError

which is kind of confusing.

[twmr]

By confusing you mean that there is no output after "pytest introspection follows", right?

[The-Compiler]

Yep! Ideally, there would be a pytest introspection of all calls there (something like "expected: [mock.call('test')], got [mock.call('foo'), mock.call('test')]" or so) - but at least, there shouldn't be a "pytest introspection follows:" if nothing actually follows.