1 files changed, 53 insertions, 0 deletions
diff --git a/dom/quota/test/modules/content/WorkerDriver.js b/dom/quota/test/modules/content/WorkerDriver.js
new file mode 100644
index 0000000000..365d00f363
--- /dev/null
+++ b/dom/quota/test/modules/content/WorkerDriver.js
@@ -0,0 +1,53 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+export async function runTestInWorker(script, base, listener) {
+  return new Promise(function(resolve) {
+    const globalHeadUrl = new URL(
+      "/tests/dom/quota/test/modules/worker/head.js",
+      base
+    );
+
+    const worker = new Worker(globalHeadUrl.href);
+
+    worker.onmessage = function(event) {
+      const data = event.data;
+
+      switch (data.op) {
+        case "ok":
+          listener.onOk(data.value, data.message);
+          break;
+
+        case "is":
+          listener.onIs(data.a, data.b, data.message);
+          break;
+
+        case "info":
+          listener.onInfo(data.message);
+          break;
+
+        case "finish":
+          resolve();
+          break;
+
+        case "failure":
+          listener.onOk(false, "Worker had a failure: " + data.message);
+          resolve();
+          break;
+      }
+    };
+
+    worker.onerror = function(event) {
+      listener.onOk(false, "Worker had an error: " + event.data);
+      resolve();
+    };
+
+    const scriptUrl = new URL(script, base);
+
+    const localHeadUrl = new URL("head.js", scriptUrl);
+
+    worker.postMessage([localHeadUrl.href, scriptUrl.href]);
+  });
+}