diff --git a/scripts/verifyManagedRelease.py b/scripts/verifyManagedRelease.py
index f813547..5824701 100644
--- a/scripts/verifyManagedRelease.py
+++ b/scripts/verifyManagedRelease.py
@@ -193,7 +193,7 @@ def main():
             output = run(["go", "test", "-race", "-count=1", "-json", MODULE + "/" + package], starter, env)
             events = [json.loads(line) for line in output.splitlines() if line.startswith("{")]
             passed = {event.get("Test") for event in events if event.get("Action") == "pass"}
-            assert expected <= passed
+            assert expected <= passed, f"{package} missing tests: {sorted(expected - passed)}"
         signed_read_output = run(["go", "run", MODULE + "/examples/signedRead", "-check"], starter, env)
         assert "PDF preview, Chinese filename, download, HEAD and Range passed" in signed_read_output
         checks += ["remoteSignedReadOptionsAndLegacyLinks", "remoteReadSignatureTamperingAndExpiry",