Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 85 insertions, 0 deletions

diff --git a/dom/serviceworkers/test/utils.js b/dom/serviceworkers/test/utils.js
new file mode 100644
index 0000000000..15ab203972
--- /dev/null
+++ b/dom/serviceworkers/test/utils.js
@@ -0,0 +1,85 @@
+function waitForState(worker, state, context) {
+  return new Promise(resolve => {
+    function onStateChange() {
+      if (worker.state === state) {
+        worker.removeEventListener("statechange", onStateChange);
+        resolve(context);
+      }
+    }
+
+    // First add an event listener, so we won't miss any change that happens
+    // before we check the current state.
+    worker.addEventListener("statechange", onStateChange);
+
+    // Now check if the worker is already in the desired state.
+    onStateChange();
+  });
+}
+
+/**
+ * Helper for browser tests to issue register calls from the content global and
+ * wait for the SW to progress to the active state, as most tests desire.
+ * From the ContentTask.spawn, use via
+ * `content.wrappedJSObject.registerAndWaitForActive`.
+ */
+async function registerAndWaitForActive(...args) {
+  console.log("...calling register");
+  const reg = await navigator.serviceWorker.register(...args);
+  // Unless registration resurrection happens, the SW should be in the
+  // installing slot.
+  console.log("...waiting for activation");
+  await waitForState(reg.installing, "activated", reg);
+  console.log("...activated!");
+  return reg;
+}
+
+/**
+ * Helper to create an iframe with the given URL and return the first
+ * postMessage payload received.  This is intended to be used when creating
+ * cross-origin iframes.
+ *
+ * A promise will be returned that resolves with the payload of the postMessage
+ * call.
+ */
+function createIframeAndWaitForMessage(url) {
+  const iframe = document.createElement("iframe");
+  document.body.appendChild(iframe);
+  return new Promise(resolve => {
+    window.addEventListener(
+      "message",
+      event => {
+        resolve(event.data);
+      },
+      { once: true }
+    );
+    iframe.src = url;
+  });
+}
+
+/**
+ * Helper to create a nested iframe into the iframe created by
+ * createIframeAndWaitForMessage().
+ *
+ * A promise will be returned that resolves with the payload of the postMessage
+ * call.
+ */
+function createNestedIframeAndWaitForMessage(url) {
+  const iframe = document.getElementsByTagName("iframe")[0];
+  iframe.contentWindow.postMessage("create nested iframe", "*");
+  return new Promise(resolve => {
+    window.addEventListener(
+      "message",
+      event => {
+        resolve(event.data);
+      },
+      { once: true }
+    );
+  });
+}
+
+async function unregisterAll() {
+  const registrations = await navigator.serviceWorker.getRegistrations();
+  for (const reg of registrations) {
+    await reg.unregister();
+  }
+}