1 files changed, 34 insertions, 0 deletions
diff --git a/comm/mail/base/test/browser/head_spacesToolbar.js b/comm/mail/base/test/browser/head_spacesToolbar.js
new file mode 100644
index 0000000000..f08f3deee5
--- /dev/null
+++ b/comm/mail/base/test/browser/head_spacesToolbar.js
@@ -0,0 +1,34 @@
+/* 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/. */
+
+async function sub_test_toolbar_alignment(drawInTitlebar, hideMenu) {
+  let menubar = document.getElementById("toolbar-menubar");
+  let tabsInTitlebar =
+    document.documentElement.getAttribute("tabsintitlebar") == "true";
+  Assert.equal(tabsInTitlebar, drawInTitlebar);
+
+  if (hideMenu) {
+    menubar.setAttribute("autohide", true);
+    menubar.setAttribute("inactive", true);
+  } else {
+    menubar.removeAttribute("autohide");
+    menubar.removeAttribute("inactive");
+  }
+  await new Promise(resolve => requestAnimationFrame(resolve));
+
+  let size = document
+    .getElementById("spacesToolbar")
+    .getBoundingClientRect().width;
+
+  Assert.equal(
+    document.getElementById("titlebar").getBoundingClientRect().left,
+    size,
+    "The correct style was applied to the #titlebar"
+  );
+  Assert.equal(
+    document.getElementById("toolbar-menubar").getBoundingClientRect().left,
+    size,
+    "The correct style was applied to the #toolbar-menubar"
+  );
+}