1 files changed, 25 insertions, 0 deletions
diff --git a/testing/mochitest/tests/Harness_sanity/test_sanityRegisteredServiceWorker2.html b/testing/mochitest/tests/Harness_sanity/test_sanityRegisteredServiceWorker2.html
new file mode 100644
index 0000000000..f46944c2e5
--- /dev/null
+++ b/testing/mochitest/tests/Harness_sanity/test_sanityRegisteredServiceWorker2.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Test that service worker registrations not cleaned up in mochitests cause failures</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+<body>
+<script>
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({"set": [
+  ["dom.serviceWorkers.exemptFromPerDomainMax", true],
+  ["dom.serviceWorkers.enabled", true],
+  ["dom.serviceWorkers.testing.enabled", true]
+]}, function() {
+  navigator.serviceWorker.getRegistration("scope")
+    .then(function(registration) {
+      ok(registration, "Registration successfully obtained");
+      return registration.unregister();
+    }).then(function() {
+      SimpleTest.finish();
+    });
+});
+</script>
+</body>
+</html>