1 files changed, 17 insertions, 0 deletions
diff --git a/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js b/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js
new file mode 100644
index 0000000000..676d2a4bbe
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_worker_helper.js
@@ -0,0 +1,17 @@
+function ok(aCondition, aMessage) {
+  return new Promise(function (resolve, reject) {
+    self.clients.matchAll().then(function (res) {
+      if (!res.length) {
+        reject();
+        return;
+      }
+      res[0].postMessage({
+        status: "callback",
+        data: "ok",
+        condition: aCondition,
+        message: aMessage,
+      });
+      resolve();
+    });
+  });
+}