add "mathjax_ignore" on existing tests

Author: KevsterAmp

pandas/tests/io/formats/style/test_style.py

@@ -488,9 +488,11 @@ def test_repr_html_ok(self, styler):
     def test_repr_html_mathjax(self, styler):
         # gh-19824 / 41395
         assert "tex2jax_ignore" not in styler._repr_html_()
+        assert "mathjax_ignore" not in styler._repr_html_()
 
         with option_context("styler.html.mathjax", False):
             assert "tex2jax_ignore" in styler._repr_html_()
+            assert "mathjax_ignore" in styler._repr_html_()
 
     def test_update_ctx(self, styler):
         styler._update_ctx(DataFrame({"A": ["color: red", "color: blue"]}))

pandas/tests/io/formats/test_to_html.py

@@ -934,9 +934,11 @@ def test_repr_html(self, float_frame):
     def test_repr_html_mathjax(self):
         df = DataFrame([[1, 2], [3, 4]])
         assert "tex2jax_ignore" not in df._repr_html_()
+        assert "mathjax_ignore" not in df._repr_html_()
 
         with option_context("display.html.use_mathjax", False):
             assert "tex2jax_ignore" in df._repr_html_()
+            assert "mathjax_ignore" in df._repr_html_()
 
     def test_repr_html_wide(self):
         max_cols = 20