old_contents: import markdown
  from mdx_embedly import EmbedlyExtension
  
  
  def test_embedly():
      s = "[https://github.com/yymm:embed]"
      expected = """
  <p>
  <a class="embedly-card" href="https://github.com/yymm">embed.ly</a>
  <script async src="//cdn.embedly.com/widgets/platform.js"charset="UTF-8"></script>
  </p>
      """.strip()
      html = markdown.markdown(s, extensions=[EmbedlyExtension()])
      assert html == expected
  
  
  def test_gist():
      s = "[https://gist.github.com/yymm/726df7f0e4ed48e54a06:embed]"
      expected = """
  <p>
  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
  <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/gist-embed/2.4/gist-embed.min.js"></script>
  <code data-gist-id="726df7f0e4ed48e54a06"></code>
  </p>
      """.strip()
      html = markdown.markdown(s, extensions=[EmbedlyExtension()])
      assert html == expected
  
new_contents: import markdown
  from mdx_embedly import EmbedlyExtension
  
  
  def test_embedly():
      s = "[https://github.com/yymm:embed]"
      expected = """
  <p>
  <a class="embedly-card" href="https://github.com/yymm">embed.ly</a>
  <script async src="//cdn.embedly.com/widgets/platform.js" charset="UTF-8"></script>
  </p>
      """.strip()
      html = markdown.markdown(s, extensions=[EmbedlyExtension()])
      assert html == expected
  
  
  def test_gist():
      s = "[https://gist.github.com/yymm/726df7f0e4ed48e54a06:embed]"
      expected = """
  <p>
  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
  <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/gist-embed/2.4/gist-embed.min.js"></script>
  <code data-gist-id="726df7f0e4ed48e54a06"></code>
  </p>
      """.strip()
      html = markdown.markdown(s, extensions=[EmbedlyExtension()])
      assert html == expected
  
subject: Update expected value on test