pytest fails on Travis CI Test_ImageSearcher_LikelyCover.test_write_album_image for "happy path" cases

[jtmoon79]

From https://travis-ci.com/jtmoon79/coverlovin2/jobs/181976062

two tests fail

coverlovin2/test/test_coverlovin2.py::Test_ImageSearcher_LikelyCover::test_write_album_image[happy path - case 1 - overwrite False] FAILED [ 51%]
coverlovin2/test/test_coverlovin2.py::Test_ImageSearcher_LikelyCover::test_write_album_image[happy path - case 2 - overwrite True] FAILED [ 52%]

These do not fail on my machine! :-(

_ Test_ImageSearcher_LikelyCover.test_write_album_image[happy path - case 2 - overwrite True] _
self = <coverlovin2.test.test_coverlovin2.Test_ImageSearcher_LikelyCover object at 0x7f9d745ea0b8>
image_path_src = PosixPath('/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album1.jpg')
image_path_dst = PosixPath('/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg')
image_type = <ImageType.JPG: 'jpg'>, overwrite = True
result = Result(artalb=('', ''), imagesearcher_type=<class 'coverlovin2.coverlovin2.ImageSearcher_LikelyCover'>, image_path=Pos...overlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg"', error=False, error_mesg='')
    @pytest.mark.parametrize(
        'image_path_src, image_path_dst, image_type, overwrite, ' +
        'result',
        (
            pytest.param
            (
                B3_image_path1, B3_image_path2, jpg, False,
                Result.SkipDueToNoOverwrite(ArtAlb_empty, ImageSearcher_LikelyCover, B3_image_path2, False, True),
                id='destination image already exists - overwrite False, returns False'
            ),
            pytest.param
            (
                B3_image_path1, B3_image_path2, jpg, True,
                Result.Copied(ArtAlb_empty, ImageSearcher_LikelyCover, B3_image_path1_sz, B3_image_path1, B3_image_path2, True, True),
                id='destination image already exists - overwrite True, returns True'
            ),
            pytest.param
            (
                B3_image_path1, B3_image_path_ne, jpg, False,
                Result.Copied(ArtAlb_empty, ImageSearcher_LikelyCover, 0, B3_image_path1, B3_image_path_ne, False, True),
                id='happy path - case 1 - overwrite False'
            ),
            pytest.param
            (
                B3_image_path1, B3_image_path_ne, jpg, True,
                Result.Copied(ArtAlb_empty, ImageSearcher_LikelyCover, 0, B3_image_path1, B3_image_path_ne, True, True),
                id='happy path - case 2 - overwrite True'
            )
        )
    )
    @pytest.mark.dependency(name='test_res_B3')
    def test_write_album_image(self, image_path_src, image_path_dst, image_type, overwrite, result):
        is_ = ImageSearcher_LikelyCover(ArtAlb_empty, image_path_dst, '', False)
        assert is_.search_album_image(image_type)
>       assert result == is_.write_album_image(Path(), overwrite, True)
E       assert Result(artalb...error_mesg='') == Result(artalb=...error_mesg='')
E         At index 8 diff: '(--test) ImageSearcher_LikelyCover copied 0 bytes from "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album1.jpg" to "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg"' != '(--test) ImageSearcher_LikelyCover copied 0 bytes from "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album2.jpg" to "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg"'
E         Full diff:
E         - Result(artalb=('', ''), imagesearcher_type=<class 'coverlovin2.coverlovin2.ImageSearcher_LikelyCover'>, image_path=PosixPath('/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg'), image_type=None, result_written=True, overwrite=True, test=True, result_nosuitable=False, message='(--test) ImageSearcher_LikelyCover copied 0 bytes from "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album1.jpg" to "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg"', error=False, error_mesg='')
E         ?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ^
E         + Result(artalb=('', ''), imagesearcher_type=<class 'coverlovin2.coverlovin2.ImageSearcher_LikelyCover'>, image_path=PosixPath('/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg'), image_type=None, result_written=True, overwrite=True, test=True, result_nosuitable=False, message='(--test) ImageSearcher_LikelyCover copied 0 bytes from "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album2.jpg" to "/home/travis/build/jtmoon79/coverlovin2/coverlovin2/test/test_resources/test_ImageSearcher_LikelyCover3/album-not-exists-file.jpg"', error=False, error_mesg='')
E         ?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ^
coverlovin2/test/test_coverlovin2.py:733: AssertionError