refactor: avoid parsing document twice for figure numbers

test/test_morse.py

@@ -1,8 +1,7 @@
-import mistletoe
 import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
-from test.util import paragraph
+from test.util import paragraph, render_html
 
 
 @pytest.mark.html
@@ -17,4 +16,4 @@ def test_morse_html():
     }
 
     for assertion in assertions:
-        assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == paragraph(assertions[assertion])
+        assert render_html(assertion) == paragraph(assertions[assertion])