def METHOD_NAME(self, get_embed):
    get_embed.return_value = Embed(
        url="http://www.youtube.com/watch/",
        max_width=None,
        type="video",
        html="test html",
        title="test title",
        author_name="test author name",
        provider_name="test provider name",
        thumbnail_url="http://test/thumbnail.url",
        width=1000,
        height=1000,
    )
    result = FrontendMediaEmbedHandler.expand_db_attributes(
        {
            "url": "http://www.youtube.com/watch/",
        }
    )
    self.assertIn("test html", result)
    self.assertIn('class="responsive-object"', result)