def it_raises_on_unrecognized_image_stream(self):
stream = BytesIO(b'foobar 666 not an image stream')
with pytest.raises(UnrecognizedImageError):
_ImageHeaderFactory(stream)
def it_raises_on_unrecognized_image_stream(self):
stream = BytesIO(b'foobar 666 not an image stream')
with pytest.raises(UnrecognizedImageError):
_ImageHeaderFactory(stream)
def it_constructs_the_right_class_for_a_given_image_stream(
self, call_fixture):
stream, expected_class = call_fixture
image_header = _ImageHeaderFactory(stream)
assert isinstance(image_header, expected_class)
def it_constructs_the_right_class_for_a_given_image_stream(
self, call_fixture):
stream, expected_class = call_fixture
image_header = _ImageHeaderFactory(stream)
assert isinstance(image_header, expected_class)
