1 files changed, 102 insertions, 0 deletions
diff --git a/dom/media/mediacontrol/tests/browser/browser_nosrc_and_error_media.js b/dom/media/mediacontrol/tests/browser/browser_nosrc_and_error_media.js
new file mode 100644
index 0000000000..837b0ecda6
--- /dev/null
+++ b/dom/media/mediacontrol/tests/browser/browser_nosrc_and_error_media.js
@@ -0,0 +1,102 @@
+// Import this in order to use `triggerPictureInPicture()`.
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/toolkit/components/pictureinpicture/tests/head.js",
+  this
+);
+
+const PAGE_NOSRC_MEDIA =
+  "https://example.com/browser/dom/media/mediacontrol/tests/browser/file_no_src_media.html";
+const PAGE_ERROR_MEDIA =
+  "https://example.com/browser/dom/media/mediacontrol/tests/browser/file_error_media.html";
+const PAGES = [PAGE_NOSRC_MEDIA, PAGE_ERROR_MEDIA];
+const testVideoId = "video";
+
+add_task(async function setupTestingPref() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["media.mediacontrol.testingevents.enabled", true]],
+  });
+});
+
+/**
+ * To ensure the no src media and media with error won't activate the media
+ * controller even if they enters PIP mode or fullscreen.
+ */
+add_task(async function testNoSrcOrErrorMediaEntersPIPMode() {
+  for (let page of PAGES) {
+    info(`open media page ${page}`);
+    const tab = await createLoadedTabWrapper(page, { needCheck: false });
+
+    info(`controller should always inactive`);
+    const controller = tab.linkedBrowser.browsingContext.mediaController;
+    controller.onactivated = () => {
+      ok(false, "should not get activated!");
+    };
+
+    info(`enter PIP mode which would not affect controller`);
+    const winPIP = await triggerPictureInPicture(
+      tab.linkedBrowser,
+      testVideoId
+    );
+    info(`leave PIP mode`);
+    await ensureMessageAndClosePiP(
+      tab.linkedBrowser,
+      testVideoId,
+      winPIP,
+      false
+    );
+    ok(!controller.isActive, "controller is still inactive");
+
+    info(`remove tab`);
+    await tab.close();
+  }
+});
+
+add_task(async function testNoSrcOrErrorMediaEntersFullscreen() {
+  for (let page of PAGES) {
+    info(`open media page ${page}`);
+    const tab = await createLoadedTabWrapper(page, { needCheck: false });
+
+    info(`controller should always inactive`);
+    const controller = tab.linkedBrowser.browsingContext.mediaController;
+    controller.onactivated = () => {
+      ok(false, "should not get activated!");
+    };
+
+    info(`enter and leave fullscreen which would not affect controller`);
+    await enterAndLeaveFullScreen(tab, testVideoId);
+    ok(!controller.isActive, "controller is still inactive");
+
+    info(`remove tab`);
+    await tab.close();
+  }
+});
+
+/**
+ * The following is helper function.
+ */
+async function enterAndLeaveFullScreen(tab, elementId) {
+  await new Promise(resolve =>
+    SimpleTest.waitForFocus(resolve, tab.linkedBrowser.ownerGlobal)
+  );
+  await SpecialPowers.spawn(tab.linkedBrowser, [elementId], elementId => {
+    return new Promise(r => {
+      const element = content.document.getElementById(elementId);
+      ok(!content.document.fullscreenElement, "no fullscreen element");
+      element.requestFullscreen();
+      element.onfullscreenchange = () => {
+        if (content.document.fullscreenElement) {
+          element.onfullscreenerror = null;
+          content.document.exitFullscreen();
+        } else {
+          element.onfullscreenchange = null;
+          element.onfullscreenerror = null;
+          r();
+        }
+      };
+      element.onfullscreenerror = () => {
+        // Retry until the element successfully enters fullscreen.
+        element.requestFullscreen();
+      };
+    });
+  });
+}