1 files changed, 65 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/windows/nested-browsing-contexts/window-top.html b/testing/web-platform/tests/html/browsers/windows/nested-browsing-contexts/window-top.html
new file mode 100644
index 0000000000..e5590adeb8
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/windows/nested-browsing-contexts/window-top.html
@@ -0,0 +1,65 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>window.top</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+test(function() {
+  assert_equals(window, top)
+}, "Top level browsing context");
+
+function step_func(test) {
+  return function (top_pointer) {
+    test.step(function() {assert_equals(top_pointer, window);})
+    test.done();
+  }
+}
+
+var t1 = async_test("One nested iframe");
+t1.step(function() {
+  var iframe = document.createElement("iframe");
+  //iframe.src = "data:text/html,"
+
+  iframe.onload = t1.step_func(
+    function() {
+      var doc = iframe.contentDocument;
+      iframe.contentWindow.test_func = step_func(t1);
+
+      var script = doc.createElement("script")
+      script.textContent = "test_func(top);"
+      doc.body.appendChild(script);
+    });
+    document.body.appendChild(iframe);
+});
+
+var t2 = async_test("Two nested iframes");
+t2.step(function() {
+  var iframe = document.createElement("iframe");
+  //iframe.src = "data:text/html,"
+
+  iframe.onload = t2.step_func(
+    function() {
+      var doc = iframe.contentDocument;
+      iframe2 = document.createElement("iframe");
+      //iframe2.src = "data:text/html,"
+      // Workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1229707
+      iframe2.src = '/common/blank.html';
+
+      iframe2.onload = t2.step_func(
+        function() {
+          var doc2 = iframe2.contentDocument;
+
+          iframe2.contentWindow.test_func = step_func(t2);
+
+          var script = doc2.createElement("script")
+          script.textContent = "test_func(top);"
+          doc2.body.appendChild(script);
+        });
+      doc.body.appendChild(iframe2);
+   });
+
+  document.body.appendChild(iframe);
+});
+
+</script>