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How to use test_is_nan_failure method in assertpy

Best Python code snippet using assertpy_python

test_numbers.py

Source:test_numbers.py

...63        assert_that(str(ex)).is_equal_to('val is not numeric')64def test_is_nan():65    assert_that(float('NaN')).is_nan()66    assert_that(float('Inf')-float('Inf')).is_nan()67def test_is_nan_failure():68    try:69        assert_that(0).is_nan()70        fail('should have raised error')71    except AssertionError as ex:72        assert_that(str(ex)).is_equal_to('Expected <0> to be <NaN>, but was not.')73def test_is_nan_bad_type_failure():74    try:75        assert_that('foo').is_nan()76        fail('should have raised error')77    except TypeError as ex:78        assert_that(str(ex)).is_equal_to('val is not numeric')79def test_is_nan_bad_type_failure_complex():80    try:81        assert_that(1 + 2j).is_nan()...

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