Initial MaterialSub release

Derived from pengchujin/jzsub at 222a90265d2a8797ca258eb1a980cee0863a8311; preserve the upstream MIT license and attribution.

skills/materialsub/tests/test_preflight.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+import importlib.util
+from pathlib import Path
+import sys
+import unittest
+from unittest import mock
+
+
+SCRIPT = Path(__file__).resolve().parents[1] / "scripts" / "preflight.py"
+sys.path.insert(0, str(SCRIPT.parent))
+SPEC = importlib.util.spec_from_file_location("materialsub_preflight", SCRIPT)
+assert SPEC is not None and SPEC.loader is not None
+preflight = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(preflight)
+
+
+class PreflightTests(unittest.TestCase):
+    def dependencies(self):
+        return mock.patch.object(
+            preflight.shutil,
+            "which",
+            side_effect=lambda name: f"/bin/{name}" if name != "deno" else None,
+        )
+
+    def test_missing_font_requires_early_decision(self) -> None:
+        with self.dependencies(), mock.patch.object(
+            preflight.burn, "_required_executables", return_value=("/bin/ffmpeg", "/bin/ffprobe")
+        ), mock.patch.object(
+            preflight.burn, "_require_libass_subtitles_filter"
+        ), mock.patch.object(preflight.burn, "_font_installed", return_value=False):
+            exit_code, result = preflight.assess(
+                font="MiSans", allow_missing_font=False, youtube=False
+            )
+
+        self.assertEqual(exit_code, 3)
+        self.assertEqual(result["stage"], "font_decision_required")
+
+    def test_missing_font_can_accept_substitution_upfront(self) -> None:
+        with self.dependencies(), mock.patch.object(
+            preflight.burn, "_required_executables", return_value=("/bin/ffmpeg", "/bin/ffprobe")
+        ), mock.patch.object(
+            preflight.burn, "_require_libass_subtitles_filter"
+        ), mock.patch.object(preflight.burn, "_font_installed", return_value=False):
+            exit_code, result = preflight.assess(
+                font="MiSans", allow_missing_font=True, youtube=True
+            )
+
+        self.assertEqual(exit_code, 0)
+        self.assertTrue(result["substitution_allowed"])
+        self.assertTrue(any("Deno" in item for item in result["warnings"]))
+
+
+if __name__ == "__main__":
+    unittest.main()