1 files changed, 74 insertions, 0 deletions
diff --git a/dom/tests/browser/browser_frame_elements.js b/dom/tests/browser/browser_frame_elements.js
new file mode 100644
index 0000000000..13f79edbfd
--- /dev/null
+++ b/dom/tests/browser/browser_frame_elements.js
@@ -0,0 +1,74 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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/. */
+
+const TEST_URI =
+  "http://example.com/browser/dom/tests/browser/browser_frame_elements.html";
+
+add_task(async function test() {
+  await BrowserTestUtils.withNewTab(
+    { gBrowser, url: TEST_URI },
+    async function (browser) {
+      // Confirm its embedder is the browser:
+      is(
+        browser.browsingContext.embedderElement,
+        browser,
+        "Embedder element for main window is xul:browser"
+      );
+
+      await SpecialPowers.spawn(browser, [], startTests);
+    }
+  );
+});
+
+function startTests() {
+  info("Frame tests started");
+
+  info("Checking top window");
+  let gWindow = content;
+  Assert.equal(gWindow.top, gWindow, "gWindow is top");
+  Assert.equal(gWindow.parent, gWindow, "gWindow is parent");
+
+  info("Checking about:blank iframe");
+  let iframeBlank = gWindow.document.querySelector("#iframe-blank");
+  Assert.ok(iframeBlank, "Iframe exists on page");
+  Assert.equal(
+    iframeBlank.browsingContext.embedderElement,
+    iframeBlank,
+    "Embedder element for iframe window is iframe"
+  );
+  Assert.equal(iframeBlank.contentWindow.top, gWindow, "gWindow is top");
+  Assert.equal(iframeBlank.contentWindow.parent, gWindow, "gWindow is parent");
+
+  info("Checking iframe with data url src");
+  let iframeDataUrl = gWindow.document.querySelector("#iframe-data-url");
+  Assert.ok(iframeDataUrl, "Iframe exists on page");
+  Assert.equal(
+    iframeDataUrl.browsingContext.embedderElement,
+    iframeDataUrl,
+    "Embedder element for iframe window is iframe"
+  );
+  Assert.equal(iframeDataUrl.contentWindow.top, gWindow, "gWindow is top");
+  Assert.equal(
+    iframeDataUrl.contentWindow.parent,
+    gWindow,
+    "gWindow is parent"
+  );
+
+  info("Checking object with data url data attribute");
+  let objectDataUrl = gWindow.document.querySelector("#object-data-url");
+  Assert.ok(objectDataUrl, "Object exists on page");
+  Assert.equal(
+    objectDataUrl.browsingContext.embedderElement,
+    objectDataUrl,
+    "Embedder element for object window is the object"
+  );
+  Assert.equal(objectDataUrl.contentWindow.top, gWindow, "gWindow is top");
+  Assert.equal(
+    objectDataUrl.contentWindow.parent,
+    gWindow,
+    "gWindow is parent"
+  );
+}