def test_mathjax_loading(self):
markup = ReStructuredTextMarkup()
self.assertEqual('', markup.get_javascript('Hello, world!'))
js = markup.get_javascript('Hello, :math:`2+2`!')
self.assertIn('<script', js)
body = markup.get_document_body('Hello, :math:`2+2`!')
self.assertIn('<span class="math">', body)
self.assertIn(r'\(2+2\)</span>', body)
