1 files changed, 43 insertions, 0 deletions
diff --git a/testing/web-platform/tests/page-visibility/test_default_view.html b/testing/web-platform/tests/page-visibility/test_default_view.html
new file mode 100644
index 000000000..6e2f97084
--- /dev/null
+++ b/testing/web-platform/tests/page-visibility/test_default_view.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+        <title>Page Visibility Null Default View Test</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+        <script type="text/javascript" src="resources/pagevistestharness.js"></script>
+
+        <script type="text/javascript" >
+            setup({explicit_done: true});
+
+            function onload_test()
+            {
+                // inject a windowless subdocument as a child of the root document <html> element
+                var subDoc = document.implementation.createDocument('resources/blank_page_green.html', 'html', null);
+
+                // Test precondition: ensure subdocument has a null default view
+                test_true(subDoc.defaultView == null, "windowless subdocument generated for test has a null default view");
+
+                // check that feature exists within subdocument
+                test_feature_exists(subDoc, 'windowless subdocument');
+
+                // check that the subdocument has a hidden visibility state
+                test_true(subDoc.hidden,
+                          "hidden == true for windowless subdocuments with a null default view");
+                test_equals(subDoc.visibilityState, VISIBILITY_STATES.HIDDEN,
+                            "visibilityState == " + VISIBILITY_STATES.HIDDEN +
+                            " for windowless subdocuments with a null default view");
+
+                done();
+            }
+        </script>
+    </head>
+    <body onload="onload_test()">
+        <h1>Description</h1>
+        <p>This test validates that document.hidden == false and
+           document.visibilityState == "visible" for windowless subdocuments.</p>
+        <div id="log"></div>
+    </body>
+</html>