1 files changed, 68 insertions, 0 deletions
diff --git a/toolkit/components/pictureinpicture/tests/browser_closePipPause.js b/toolkit/components/pictureinpicture/tests/browser_closePipPause.js
new file mode 100644
index 0000000000..b87888e411
--- /dev/null
+++ b/toolkit/components/pictureinpicture/tests/browser_closePipPause.js
@@ -0,0 +1,68 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * This test checks that MediaStream videos are not paused when closing
+ * the PiP window.
+ */
+add_task(async function test_close_mediaStreamVideos() {
+  await BrowserTestUtils.withNewTab(
+    {
+      url: TEST_ROOT + "test-media-stream.html",
+      gBrowser,
+    },
+    async browser => {
+      await SpecialPowers.spawn(browser, [], async () => {
+        // Construct a new video element, and capture a stream from it
+        // to redirect to both testing videos
+        let newVideo = content.document.createElement("video");
+        newVideo.src = "test-video.mp4";
+        newVideo.id = "media-stream-video";
+        content.document.body.appendChild(newVideo);
+        newVideo.loop = true;
+      });
+      await ensureVideosReady(browser);
+
+      // Modify both the "with-controls" and "no-controls" videos so that they mirror
+      // the new video that we just added via MediaStream.
+      await SpecialPowers.spawn(browser, [], async () => {
+        let newVideo = content.document.getElementById("media-stream-video");
+        newVideo.play();
+
+        for (let videoID of ["with-controls", "no-controls"]) {
+          let testedVideo = content.document.createElement("video");
+          testedVideo.id = videoID;
+          testedVideo.srcObject = newVideo.mozCaptureStream().clone();
+          content.document.body.prepend(testedVideo);
+          if (
+            testedVideo.readyState < content.HTMLMediaElement.HAVE_ENOUGH_DATA
+          ) {
+            info(`Waiting for 'canplaythrough' for '${testedVideo.id}'`);
+            await ContentTaskUtils.waitForEvent(testedVideo, "canplaythrough");
+          }
+          testedVideo.play();
+        }
+      });
+
+      for (let videoID of ["with-controls", "no-controls"]) {
+        let pipWin = await triggerPictureInPicture(browser, videoID);
+        ok(pipWin, "Got Picture-in-Picture window.");
+        ok(
+          !(await isVideoPaused(browser, videoID)),
+          "The video is not paused in PiP window."
+        );
+
+        let pipClosed = BrowserTestUtils.domWindowClosed(pipWin);
+        let closeButton = pipWin.document.getElementById("close");
+        EventUtils.synthesizeMouseAtCenter(closeButton, {}, pipWin);
+        await pipClosed;
+        ok(
+          !(await isVideoPaused(browser, videoID)),
+          "The video is not paused after closing PiP window."
+        );
+      }
+    }
+  );
+});