def METHOD_NAME(self):
    """Test double escaping a dollar."""
    self.check_markdown(
        r'''
        $$3+2\\$$
        ''',
        r'''
        <div class="arithmatex">
        <div class="MathJax_Preview">3+2\\</div>
        <script type="math/tex; mode=display">3+2\\</script>
        </div>
        ''',
        True
    )