test for latex in markdown added

tests/test_latex_embedding.py

@@ -0,0 +1,62 @@
+import pyladoc
+
+
+def test_latex_embedding2():
+    test_input = pyladoc._normalize_text_indent("""
+    In this equation, $$x_i$$ represents the molar fraction of component $$i$$ within the mixture,
+    while $$\\lambda_i$$ denotes the thermal conductivity of the pure substance $$i$$. The denominator
+    contains the interaction parameter $$\\Phi_{ij}$$, which describes the influence of component
+    $$j$$ on the transport properties of component $$i$$.
+
+    The interaction parameter $$\\Phi_{ij}$$ is given by the relation shown in @eq:ExampleFormula2.
+
+    $$
+    \\label{eq:ExampleFormula2}
+    \\Phi_{ij} = \\frac{1}{\\sqrt{8}} \\left(1 + \\frac{M_i}{M_j} \\right)^{-1/2} \\left[ 1 + \\left( \\frac{\\lambda_i}{\\lambda_j} \\right)^{1/2} \\left( \\frac{M_j}{M_i} \\right)^{1/4} \\right]^2
+    $$
+    """)
+
+    expected_output = pyladoc._normalize_text_indent(r"""
+    In this equation, <latex>x_i</latex> represents the molar fraction of component <latex>i</latex> within the mixture,
+    while <latex>\lambda_i</latex> denotes the thermal conductivity of the pure substance <latex>i</latex>. The denominator
+    contains the interaction parameter <latex>\Phi_{ij}</latex>, which describes the influence of component
+    <latex>j</latex> on the transport properties of component <latex>i</latex>.
+
+    The interaction parameter <latex>\Phi_{ij}</latex> is given by the relation shown in @eq:ExampleFormula2.
+    <latex type="block" ref_type="eq" ref_id="ExampleFormula2" caption="(1)">\Phi_{ij} = \frac{1}{\sqrt{8}} \left(1 + \frac{M_i}{M_j} \right)^{-1/2} \left[ 1 + \left( \frac{\lambda_i}{\lambda_j} \right)^{1/2} \left( \frac{M_j}{M_i} \right)^{1/4} \right]^2</latex>
+    """)
+
+    dummy = pyladoc.DocumentWriter()
+    result_string = dummy._equation_embedding_reescaping(test_input)
+
+    print(result_string)
+    assert result_string == expected_output
+
+
+def test_latex_embedding():
+    test_input = pyladoc._normalize_text_indent(r"""
+    # Test
+    $$
+    \label{eq:ExampleFormula2}
+    \Phi_{ij} = \frac{1}{\sqrt{8}}
+    $$
+    This $$i$$ is inline LaTeX.
+    """)
+
+    expected_output = pyladoc._normalize_text_indent(r"""
+    # Test
+    <latex type="block" ref_type="eq" ref_id="ExampleFormula2" caption="(1)">\Phi_{ij} = \frac{1}{\sqrt{8}}</latex>
+    This <latex>i</latex> is inline LaTeX.
+    """)
+
+    dummy = pyladoc.DocumentWriter()
+    result_string = dummy._equation_embedding_reescaping(test_input)
+
+    print(result_string)
+    assert result_string == expected_output
+
+    final_html = dummy._html_post_processing(pyladoc._markdown_to_html(result_string))
+    print('-- final_html --')
+    print(final_html)
+
+    assert '<h1>' in final_html and '<svg ' in final_html and '<div class="equation-number">' in final_html