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How to use test_is_child_of_failure method in assertpy

Best Python code snippet using assertpy_python

test_file.py

Source:test_file.py

...149        assert_that(str(ex)).matches('given filename arg must be a path')150def test_is_child_of(tmpfile):151    dirname = os.path.dirname(tmpfile.name)152    assert_that(tmpfile.name).is_child_of(dirname)153def test_is_child_of_failure(tmpfile):154    try:155        assert_that(tmpfile.name).is_child_of('foo_dir')156        fail('should have raised error')157    except AssertionError as ex:158        assert_that(str(ex)).matches(r'Expected file <.*> to be a child of <.*[\\/]foo_dir>, but was not.')159def test_is_child_of_bad_arg_type_failure(tmpfile):160    try:161        assert_that(tmpfile.name).is_child_of(123)162        fail('should have raised error')163    except TypeError as ex:...

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