1 files changed, 30 insertions, 0 deletions
diff --git a/browser/base/content/test/tabs/browser_tab_label_picture_in_picture.js b/browser/base/content/test/tabs/browser_tab_label_picture_in_picture.js
new file mode 100644
index 0000000000..dae4ffc444
--- /dev/null
+++ b/browser/base/content/test/tabs/browser_tab_label_picture_in_picture.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function test_pip_label_changes_tab() {
+  let newWin = await BrowserTestUtils.openNewBrowserWindow();
+
+  let pipTab = newWin.document.querySelector(".tabbrowser-tab[selected]");
+  pipTab.setAttribute("pictureinpicture", true);
+
+  let pipLabel = pipTab.querySelector(".tab-icon-sound-pip-label");
+
+  await BrowserTestUtils.withNewTab("about:blank", async browser => {
+    let selectedTab = newWin.document.querySelector(
+      ".tabbrowser-tab[selected]"
+    );
+    Assert.ok(
+      selectedTab != pipTab,
+      "Picture in picture tab is not selected tab"
+    );
+
+    selectedTab = await BrowserTestUtils.switchTab(newWin.gBrowser, () =>
+      pipLabel.click()
+    );
+    Assert.ok(selectedTab == pipTab, "Picture in picture tab is selected tab");
+  });
+
+  await BrowserTestUtils.closeWindow(newWin);
+});