1 files changed, 71 insertions, 0 deletions
diff --git a/dom/serviceworkers/test/chrome_helpers.js b/dom/serviceworkers/test/chrome_helpers.js
new file mode 100644
index 0000000000..9aaeb95625
--- /dev/null
+++ b/dom/serviceworkers/test/chrome_helpers.js
@@ -0,0 +1,71 @@
+let swm = Cc["@mozilla.org/serviceworkers/manager;1"].getService(
+  Ci.nsIServiceWorkerManager
+);
+
+let EXAMPLE_URL = "https://example.com/chrome/dom/serviceworkers/test/";
+
+function waitForIframeLoad(iframe) {
+  return new Promise(function (resolve) {
+    iframe.onload = resolve;
+  });
+}
+
+function waitForRegister(scope, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onRegister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        swm.removeListener(listener);
+        resolve(callback ? callback(registration) : registration);
+      },
+    };
+    swm.addListener(listener);
+  });
+}
+
+function waitForUnregister(scope) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onUnregister(registration) {
+        if (registration.scope !== scope) {
+          return;
+        }
+        swm.removeListener(listener);
+        resolve(registration);
+      },
+    };
+    swm.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerRegistrationChange(registration, callback) {
+  return new Promise(function (resolve) {
+    let listener = {
+      onChange() {
+        registration.removeListener(listener);
+        if (callback) {
+          callback();
+        }
+        resolve(callback ? callback() : undefined);
+      },
+    };
+    registration.addListener(listener);
+  });
+}
+
+function waitForServiceWorkerShutdown() {
+  return new Promise(function (resolve) {
+    let observer = {
+      observe(subject, topic, data) {
+        if (topic !== "service-worker-shutdown") {
+          return;
+        }
+        SpecialPowers.removeObserver(observer, "service-worker-shutdown");
+        resolve();
+      },
+    };
+    SpecialPowers.addObserver(observer, "service-worker-shutdown");
+  });
+}