fix: show unsourceable entries apart on the site

tests/test_site_availability.py

@@ -0,0 +1,62 @@
+"""An emulator page never shows an unsourceable entry as held.
+
+The page resolved each entry by name without the `unsourceable:` check
+cross_reference runs first: ioquake3's pak0.pk3 wore a green "in repo"
+badge, served by the pak0.pk3 of another game, and 52 such entries read as
+held across the site while the gaps page listed them as known absences.
+"""
+
+from __future__ import annotations
+
+import sys
+import unittest
+from pathlib import Path
+
+import yaml
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(REPO_ROOT / "scripts"))
+
+from generate_site import _availability_check, _file_badges
+
+SHA1 = "a" * 40
+DB = {
+    "files": {SHA1: {"name": "pak0.pk3", "sha1": SHA1, "path": "bios/x/pak0.pk3"}},
+    "indexes": {"by_name": {"pak0.pk3": [SHA1]}},
+}
+
+
+class UnsourceableIsNotHeld(unittest.TestCase):
+    def test_a_homonym_does_not_stand_in(self):
+        available = _availability_check(DB, set())
+        self.assertTrue(available({"name": "pak0.pk3"}))
+        self.assertFalse(available({"name": "pak0.pk3", "unsourceable": "retail data"}))
+
+    def test_the_badge_says_why(self):
+        entry = {"name": "pak0.pk3", "unsourceable": "retail data"}
+        badges = " ".join(_file_badges(entry, False))
+        self.assertIn("unsourceable", badges)
+        self.assertNotIn(">missing<", badges)
+        self.assertNotIn("in repo", badges)
+
+    def test_no_profile_entry_is_shown_held(self):
+        from common import load_database
+
+        db_path = REPO_ROOT / "database.json"
+        if not db_path.exists():
+            self.skipTest("database.json is not built")
+        available = _availability_check(load_database(str(db_path)), set())
+        shown_held = []
+        for path in sorted((REPO_ROOT / "emulators").glob("*.yml")):
+            document = yaml.safe_load(path.read_text(encoding="utf-8")) or {}
+            shown_held.extend(
+                f"{path.stem}: {entry['name']}"
+                for entry in document.get("files") or []
+                if isinstance(entry, dict) and entry.get("unsourceable")
+                and available(entry)
+            )
+        self.assertEqual(shown_held, [])
+
+
+if __name__ == "__main__":
+    unittest.main()