1 files changed, 45 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_947914_button_print.js b/browser/components/customizableui/test/browser_947914_button_print.js
new file mode 100644
index 000000000..af7abcaeb
--- /dev/null
+++ b/browser/components/customizableui/test/browser_947914_button_print.js
@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+  * License, v. 2.0. If a copy of the MPL was not distributed with this
+  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const isOSX = (Services.appinfo.OS === "Darwin");
+
+add_task(function*() {
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: "http://example.com/",
+  }, function* () {
+    info("Check print button existence and functionality");
+
+    yield PanelUI.show();
+    info("Menu panel was opened");
+
+    yield waitForCondition(() => document.getElementById("print-button") != null);
+
+    let printButton = document.getElementById("print-button");
+    ok(printButton, "Print button exists in Panel Menu");
+
+    if (isOSX) {
+      let panelHiddenPromise = promisePanelHidden(window);
+      PanelUI.hide();
+      yield panelHiddenPromise;
+      info("Menu panel was closed");
+    }
+    else {
+      printButton.click();
+      yield waitForCondition(() => gInPrintPreviewMode);
+
+      ok(gInPrintPreviewMode, "Entered print preview mode");
+
+      // close print preview
+      if (gInPrintPreviewMode) {
+        PrintUtils.exitPrintPreview();
+        yield waitForCondition(() => !window.gInPrintPreviewMode);
+        info("Exited print preview")
+      }
+    }
+  });
+});
+