1 files changed, 30 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/browser_mediaPlayback.js b/toolkit/content/tests/browser/browser_mediaPlayback.js
new file mode 100644
index 000000000..1a6ebfcb8
--- /dev/null
+++ b/toolkit/content/tests/browser/browser_mediaPlayback.js
@@ -0,0 +1,30 @@
+const PAGE = "https://example.com/browser/toolkit/content/tests/browser/file_mediaPlayback.html";
+const FRAME = "https://example.com/browser/toolkit/content/tests/browser/file_mediaPlaybackFrame.html";
+
+function wait_for_event(browser, event) {
+  return BrowserTestUtils.waitForEvent(browser, event, false, (event) => {
+    is(event.originalTarget, browser, "Event must be dispatched to correct browser.");
+    ok(!event.cancelable, "The event should not be cancelable");
+    return true;
+  });
+}
+
+function* test_on_browser(url, browser) {
+  browser.loadURI(url);
+  yield wait_for_event(browser, "DOMAudioPlaybackStarted");
+  yield wait_for_event(browser, "DOMAudioPlaybackStopped");
+}
+
+add_task(function* test_page() {
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: "about:blank",
+  }, test_on_browser.bind(undefined, PAGE));
+});
+
+add_task(function* test_frame() {
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: "about:blank",
+  }, test_on_browser.bind(undefined, FRAME));
+});