@pytest.mark.parametrize('format', ['udiff', 'UDIFF', 'uDiFf'])
def test_doctest_report_udiff(self, testdir, format):
    result = self._run_doctest_report(testdir, format)
    result.stdout.fnmatch_lines(['     0  1  4', '    -1  2  4', '    +1  2  5', '     2  3  6'])
@pytest.mark.parametrize('format', ['udiff', 'UDIFF', 'uDiFf'])
def test_doctest_report_udiff(self, testdir, format):
    result = self._run_doctest_report(testdir, format)
    result.stdout.fnmatch_lines(['     0  1  4', '    -1  2  4', '    +1  2  5', '     2  3  6'])