jacebrowning / memegen

        def it_handles_invalid_paths(template):

            expect(template.get_path("@#$%^")) == None

    def describe_path():

        def is_returned_when_file_exists(template):

            template.root = "my_root"

            with patch('pathlib.Path.is_file', Mock(return_value=True)):

                path = template.path

            expect(path) == Path("my_root/abc/default.png")

        def is_none_when_no_file(template):

            template.root = "my_root"

            with patch('pathlib.Path.is_file', Mock(return_value=False)):

                path = template.path

            expect(path) == None

    def describe_default_path():

            with patch('requests.head', Mock(return_value=mock_response)):

                template.link = "example.com/fake"

                expect(template.validate_link()) == False

        @patch('pathlib.Path.is_file', Mock(return_value=True))

        def with_cached_valid_link(template):

            template.link = "already_cached_site.com"

            expect(template.validate_link()) == True

    def describe_validate_size():

        @pytest.mark.parametrize('dimensions,valid', [

            ((Template.MIN_WIDTH, Template.MIN_HEIGHT), True),

            ((Template.MIN_WIDTH - 1, Template.MIN_HEIGHT), False),

            ((Template.MIN_WIDTH, Template.MIN_HEIGHT - 1), False),

            ((Template.MIN_WIDTH - 1, Template.MIN_HEIGHT - 1), False),

        ])

        @patch('PIL.Image.open')

        def with_various_dimenions(mock_open, template, dimensions, valid):

            mock_img = Mock()