fix: count the profiles the named listing shows

scripts/profile_sync.py

@@ -3304,9 +3304,15 @@ def select_profiles(profiles: dict, args: argparse.Namespace) -> dict:
     """Profiles matching the selection flags."""
     if args.emulator:
         if args.emulator not in profiles:
+            # Suggested from what the listing it names shows: counted over the
+            # alias and test profiles too, "lists all 553" pointed at 530 lines.
+            listed = sorted(
+                name for name, profile in profiles.items()
+                if profile.get("type") not in ("alias", "test")
+            )
             raise SystemExit(
                 f"ERROR: unknown profile {args.emulator}. "
-                + suggest_names([args.emulator], sorted(profiles), "verify.py --list-emulators")
+                + suggest_names([args.emulator], listed, "verify.py --list-emulators")
             )
         return {args.emulator: profiles[args.emulator]}
 

tests/test_profile_sync.py

@@ -4165,5 +4165,25 @@ class TestAnUnansweringRepository(unittest.TestCase):
         self.assertEqual(report.skipped, "upstream gone (declared): 404 since 2026-10-18")
 
 
+class TheUnknownProfileHintCountsTheListing(unittest.TestCase):
+    """profile_sync said "verify.py --list-emulators lists all 553" for a
+    listing of 530: the alias and test profiles it counted are not listed."""
+
+    def test_the_count_matches(self):
+        import subprocess  # noqa: PLC0415
+
+        root = Path(__file__).resolve().parents[1]
+        hint = subprocess.run(
+            [sys.executable, "scripts/profile_sync.py", "--emulator", "no-such-profile"],
+            cwd=root, capture_output=True, text=True, timeout=120, check=False,
+        )
+        listing = subprocess.run(
+            [sys.executable, "scripts/verify.py", "--list-emulators"],
+            cwd=root, capture_output=True, text=True, timeout=120, check=False,
+        ).stdout
+        count = len([line for line in listing.splitlines() if line.strip()])
+        self.assertIn(f"lists all {count}.", hint.stderr + hint.stdout)
+
+
 if __name__ == "__main__":
     unittest.main()