Translate Types and Utilities parity tests

tools/test_generate_surface.py

@@ -4,10 +4,37 @@ import unittest
 from pathlib import Path
 from unittest.mock import patch
 
-from generate_surface import check_test_parity, extract_tests, generate_tests
+from generate_surface import check_test_parity, extract_tests, generate_tests, mask_csharp_comments
 
 
 class ParityGenerationTests(unittest.TestCase):
+    def test_comment_masking_preserves_offsets_and_ignores_fake_tests(self) -> None:
+        source = '''var url = "https://example.com/[Test]"; // [Test]\n/* [TestCase(1)] */\n[Test]\n'''
+        masked = mask_csharp_comments(source)
+        self.assertEqual(len(masked), len(source))
+        self.assertEqual(masked.count("\n"), source.count("\n"))
+        self.assertIn('"https://example.com/[Test]"', masked)
+        self.assertEqual(masked.count("[Test]"), 2)
+
+        with tempfile.TemporaryDirectory() as temporary:
+            upstream = Path(temporary)
+            tests = upstream / "LibreMetaverse.Tests"
+            tests.mkdir()
+            (upstream / "LibreMetaverse.Rendering.Tests").mkdir()
+            (tests / "Comments.cs").write_text(
+                """public class Comments
+{
+    // [Test]
+    // public void CommentedOut() {}
+    [Test]
+    [TestCase(1)]
+    [TestCase(2)]
+    public void Cases(int value) {}
+}
+"""
+            )
+            self.assertEqual([case["parameter_case"] for case in extract_tests(upstream)], ["1", "2"])
+
     def test_reviewed_rust_test_is_preserved_and_excluded_from_placeholders(self) -> None:
         with tempfile.TemporaryDirectory() as temporary:
             root = Path(temporary)