Publish Source Available licenses and remove Mutagen in YouTubeDL 1.4.7 / helper 1.3.3

tests/test_python_packages.py

@@ -0,0 +1,53 @@
+import json
+import tempfile
+import unittest
+from pathlib import Path
+from types import SimpleNamespace
+from unittest.mock import patch
+
+from host.python_packages import validate_metadata
+from host.updates import resolve_packages
+
+
+class PythonPackageLicenseTests(unittest.TestCase):
+    def test_permissive_and_weak_copyleft_metadata_is_accepted(self):
+        validate_metadata([{"name": "yt-dlp", "license_expression": "Unlicense"},
+                           {"name": "certifi", "license_expression": "MPL-2.0"},
+                           {"name": "library", "license_expression": "MIT"},
+                           {"name": "library", "license_expression": "LGPL-2.1-or-later"}])
+
+    def test_strong_copyleft_is_rejected_using_expression_or_classifiers(self):
+        for metadata in [{"name": "mutagen"},
+                         {"name": "dependency", "license_expression": "GPL-3.0-or-later"},
+                         {"name": "dependency", "license_expression": "AGPL-3.0-only"},
+                         {"name": "dependency", "classifier": ["License :: OSI Approved :: GNU General Public License v2 (GPLv2)"]}]:
+            with self.subTest(metadata=metadata), self.assertRaises(ValueError):
+                validate_metadata([metadata])
+
+    def test_incompatible_resolution_does_not_delete_the_existing_packages(self):
+        with tempfile.TemporaryDirectory() as temporary:
+            stage = Path(temporary) / "stage"
+            packages = stage / "runtime/python/Lib/site-packages"
+            packages.mkdir(parents=True)
+            sentinel = packages / "existing.py"
+            sentinel.write_text("original package", encoding="utf8")
+            work = Path(temporary) / "work"
+            work.mkdir()
+
+            def resolve(command, **kwargs):
+                report = Path(command[command.index("--report") + 1])
+                report.write_text(json.dumps({"install": [{"metadata": {
+                    "name": "mutagen", "license_expression": "GPL-2.0-or-later"}}]}), encoding="utf8")
+                self.assertNotIn("yt-dlp[default]", command)
+                return SimpleNamespace(returncode=0)
+
+            response = {"urls": [{"filename": "pip-1-py3-none-any.whl", "url": "https://files.pythonhosted.org/pip.whl", "digests": {"sha256": "a" * 64}}]}
+            with patch("host.updates.get", return_value=SimpleNamespace(json=lambda: response)), \
+                    patch("host.updates.fetch"), patch("host.updates.subprocess.run", side_effect=resolve):
+                with self.assertRaisesRegex(ValueError, "mutagen"):
+                    resolve_packages(stage, work, lambda *args: None)
+            self.assertEqual(sentinel.read_text(), "original package")
+
+
+if __name__ == "__main__":
+    unittest.main()