1 files changed, 42 insertions, 0 deletions
diff --git a/toolkit/components/pictureinpicture/tests/browser_keyboardFullScreenPIPShortcut.js b/toolkit/components/pictureinpicture/tests/browser_keyboardFullScreenPIPShortcut.js
new file mode 100644
index 0000000000..da4191cb0e
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+++ b/toolkit/components/pictureinpicture/tests/browser_keyboardFullScreenPIPShortcut.js
@@ -0,0 +1,42 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that the F-key would enter and exit full screen mode in PiP for the default locale (en-US).
+ */
+add_task(async () => {
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, TEST_PAGE);
+  let browser = tab.linkedBrowser;
+  let videoID = "with-controls";
+
+  let pipWin = await triggerPictureInPicture(browser, videoID);
+  ok(pipWin, "The Picture-in-Picture window is there.");
+
+  ok(
+    !pipWin.document.fullscreenElement,
+    "PiP should not yet be in fullscreen."
+  );
+
+  await promiseFullscreenEntered(pipWin, async () => {
+    EventUtils.synthesizeKey("f", {}, pipWin);
+  });
+
+  Assert.equal(
+    pipWin.document.fullscreenElement,
+    pipWin.document.body,
+    "F-key should have caused to enter fullscreen."
+  );
+
+  await promiseFullscreenExited(pipWin, async () => {
+    EventUtils.synthesizeKey("f", {}, pipWin);
+  });
+
+  ok(
+    !pipWin.document.fullscreenElement,
+    "F-key should have caused to leave fullscreen."
+  );
+
+  await BrowserTestUtils.removeTab(tab);
+});