pytest: How to get a list of all failed tests at the end of the session? (and while using xdist)

Question

I would like to have a list of all the tests that have failed to be used at the end of session.

Pytest lets you define a hook pyt

Answer 1

You can use command line option --result-log:

test_dummy.py:

def test_dummy_success():
    return


def test_dummy_fail():
    raise Exception('Dummy fail')

Command line:

$ py.test --result-log=test_result.txt

Content of the test_result.txt

. test_dummy.py::test_dummy_success
F test_dummy.py::test_dummy_fail
 def test_dummy_fail():
 >       raise Exception('Dummy fail')
 E       Exception: Dummy fail

 test_dummy.py:6: Exception

Just search 'F' in first column and after that would be [file]::[test]