1 files changed, 55 insertions, 0 deletions
diff --git a/browser/base/content/test/webrtc/browser_device_controls_menus.js b/browser/base/content/test/webrtc/browser_device_controls_menus.js
new file mode 100644
index 0000000000..3d6602bc5e
--- /dev/null
+++ b/browser/base/content/test/webrtc/browser_device_controls_menus.js
@@ -0,0 +1,55 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  "https://example.com/"
+);
+const TEST_PAGE = TEST_ROOT + "get_user_media.html";
+
+/**
+ * Regression test for bug 1669801, where sharing a window would
+ * result in a device control menu that showed the wrong count.
+ */
+add_task(async function test_bug_1669801() {
+  let prefs = [
+    [PREF_PERMISSION_FAKE, true],
+    [PREF_AUDIO_LOOPBACK, ""],
+    [PREF_VIDEO_LOOPBACK, ""],
+    [PREF_FAKE_STREAMS, true],
+    [PREF_FOCUS_SOURCE, false],
+  ];
+  await SpecialPowers.pushPrefEnv({ set: prefs });
+
+  await BrowserTestUtils.withNewTab(TEST_PAGE, async browser => {
+    let indicatorPromise = promiseIndicatorWindow();
+
+    await shareDevices(
+      browser,
+      false /* camera */,
+      false /* microphone */,
+      SHARE_WINDOW
+    );
+
+    let indicator = await indicatorPromise;
+    let doc = indicator.document;
+
+    let menupopup = doc.querySelector("menupopup[type='Screen']");
+    let popupShownPromise = BrowserTestUtils.waitForEvent(
+      menupopup,
+      "popupshown"
+    );
+    menupopup.openPopup(doc.body, {});
+    await popupShownPromise;
+
+    let popupHiddenPromise = BrowserTestUtils.waitForEvent(
+      menupopup,
+      "popuphidden"
+    );
+    menupopup.hidePopup();
+    await popupHiddenPromise;
+    await closeStream();
+  });
+});