Add test for case in #1012.

Author: waylan

tests/test_syntax/extensions/test_md_in_html.py

@@ -654,6 +654,28 @@ def test_md1_nested_unclosed_p(self):
  )
  )
 
+ def test_md1_nested_comment(self):
+ self.assertMarkdownRenders(
+ self.dedent(
+ """
+ <div markdown="1">
+ A *Markdown* paragraph.
+ <!-- foobar -->
+ A *Markdown* paragraph.
+ </div>
+ """
+ ),
+ self.dedent(
+ """
+ <div>
+ <p>A <em>Markdown</em> paragraph.</p>
+ <!-- foobar -->
+ <p>A <em>Markdown</em> paragraph.</p>
+ </div>
+ """
+ )
+ )
+
  def test_md1_nested_link_ref(self):
  self.assertMarkdownRenders(
  self.dedent(