v0.5.3

- Мелкие исправления увеличивающие работу конвертера

tests/test_latex_math_transform.py

@@ -0,0 +1,62 @@
+"""The mml2omml stylesheet is now compiled once and shared between formulas.
+
+These tests pin the two properties that makes safe: the output must match a
+freshly compiled transform, and reusing the compiled object must not let one
+formula affect the next.
+"""
+
+import os
+import unittest
+
+import latex2mathml.converter
+from lxml import etree
+
+from md2gost import package_dir
+from md2gost.latex_math import latex_to_omml
+
+_FORMULAS = [
+    "x^2 + y^2 = z^2",
+    r"\frac{a}{b}",
+    r"\frac{a + b}{c + d}",
+    r"\sum_{i=1}^{n} i",
+    r"\sqrt{x+1}",
+    r"\int_0^1 f(x)dx",
+    r"\alpha \beta \gamma",
+    r"E = mc^2",
+]
+
+
+def _freshly_compiled(latex_equation: str) -> bytes:
+    """Pre-optimization behaviour: parse and compile the stylesheet per call."""
+    mathml = latex2mathml.converter.convert(latex_equation)
+    tree = etree.fromstring(mathml)
+    transform = etree.XSLT(etree.parse(os.path.join(package_dir(), "mml2omml")))
+    return etree.tostring(transform(tree).getroot())
+
+
+class TestLatexToOmml(unittest.TestCase):
+    def test_matches_freshly_compiled_transform(self):
+        for formula in _FORMULAS:
+            with self.subTest(formula=formula):
+                self.assertEqual(_freshly_compiled(formula),
+                                 etree.tostring(latex_to_omml(formula)))
+
+    def test_repeated_calls_are_identical(self):
+        for formula in _FORMULAS:
+            with self.subTest(formula=formula):
+                outputs = {etree.tostring(latex_to_omml(formula)) for _ in range(5)}
+                self.assertEqual(1, len(outputs))
+
+    def test_interleaved_formulas_do_not_interfere(self):
+        expected = {f: etree.tostring(latex_to_omml(f)) for f in _FORMULAS}
+        for _ in range(3):
+            for formula in reversed(_FORMULAS):
+                self.assertEqual(expected[formula], etree.tostring(latex_to_omml(formula)))
+
+    def test_invalid_formula_still_raises_value_error(self):
+        with self.assertRaises(ValueError):
+            latex_to_omml(r"\frac{")
+
+
+if __name__ == "__main__":
+    unittest.main()