1 files changed, 41 insertions, 0 deletions
diff --git a/dom/performance/tests/test_worker_observer.html b/dom/performance/tests/test_worker_observer.html
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+++ b/dom/performance/tests/test_worker_observer.html
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+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset=utf-8>
+<title>Test for performance observer in worker</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+const worker = new Worker("worker_performance_observer.js");
+
+promise_test(t => {
+  let found = false;
+  return new Promise(resolve => {
+    SpecialPowers.registerConsoleListener(msg => {
+      if (msg.errorMessage === "Ignoring unsupported entryTypes: invalid.") {
+        found = true;
+        resolve();
+      }
+    });
+    worker.addEventListener("error", resolve);
+    worker.addEventListener("message", function(event) {
+      if (event.data.type === "complete") {
+        resolve();
+      }
+    });
+  }).then(() => {
+    SpecialPowers.postConsoleSentinel();
+    assert_true(found, "got the expected console warning");
+  });
+}, "Console warnings about invalid types should be logged during the tests");
+
+fetch_tests_from_worker(worker);
+</script>
+</body>