1 files changed, 56 insertions, 0 deletions
diff --git a/share/extensions/tests/test_pdflatex.py b/share/extensions/tests/test_pdflatex.py
new file mode 100644
index 0000000..647f94d
--- /dev/null
+++ b/share/extensions/tests/test_pdflatex.py
@@ -0,0 +1,56 @@
+# coding=utf-8
+"""
+Test calling pdflatex to convert formule to svg.
+
+This test uses cached output from the `pdflatex` command because this
+test is not a test of pdflatex, but of the extension only. The mocked
+output also allows testing in the CI builder without dependancies.
+
+To re-generate the cached files, run the pytest command:
+
+NO_MOCK_COMMANDS=1 pytest tests/test_pdflatex.py
+
+This will use pdflatex, but will also store the output of the call
+to `tests/data/cmd/pdflatex/[key].msg.output (and also to `cmd/inkscape/...`)
+
+The key depends on the comparison arguments, so changing them will invalidate
+the file and you must regenerate them.
+
+Remove the `.output` extension from the above file and commit it to the
+repository only AFTER all the tests pass and you are happy with them.
+
+Clean up any old `.msg` files with invalid or old keys.
+
+(use EXPORT_COMPARE to generate the output svgs, see inkex.tester docs)
+"""
+from pdflatex import PdfLatex
+from inkex.tester import ComparisonMixin, TestCase
+
+
+class PdfLatexTest(ComparisonMixin, TestCase):
+    """Test some basic latex formulas"""
+
+    compare_file = "svg/empty.svg"
+    effect_class = PdfLatex
+    comparisons = [
+        ("--font_size=15",),  # pdflatex 6cb1964
+        ("--font_size=15", "--standalone=False"),  # pdflatex acb7040
+        (
+            "--font_size=8",
+            r"""--formule=\(\begin{matrix}
+  a & b & c \\
+  d & e & f \\
+  g & h & i
+ \end{matrix}\)""",
+        ),  # pdflatex fa0bf1f8
+    ]
+
+
+class PdfLatexTestmm(ComparisonMixin, TestCase):
+    compare_file = "svg/empty_mm.svg"
+    effect_class = PdfLatex
+    comparisons = [
+        ("--font_size=20", r"--formule=\(\frac{1+\sqrt{5}}{2}\)"),  # pdflatex 93c25fa3
+        # pdflatex b78a3100
+        ("--font_size=20", "--standalone=False", r"--formule=\(\frac{1+\sqrt{5}}{2}\)"),
+    ]