mshtml/tests: Test parent window links after navigation.

dlls/mshtml/tests/events.c

@@ -3234,6 +3234,48 @@ static void test_iframe_connections(IHTMLDocument2 *doc)
     IHTMLDocument2_Release(iframes_doc);
 }
 
+static void test_window_refs(IHTMLDocument2 *doc)
+{
+    IHTMLWindow2 *self, *parent, *child;
+    IHTMLFrameBase2 *iframe;
+    IHTMLDocument6 *doc6;
+    IHTMLElement2 *elem;
+    HRESULT hres;
+    BSTR bstr;
+
+    hres = IHTMLDocument2_QueryInterface(doc, &IID_IHTMLDocument6, (void**)&doc6);
+    ok(hres == S_OK, "Could not get IHTMLDocument6 iface: %08lx\n", hres);
+    bstr = SysAllocString(L"ifr");
+    hres = IHTMLDocument6_getElementById(doc6, bstr, &elem);
+    ok(hres == S_OK, "getElementById failed: %08lx\n", hres);
+    IHTMLDocument6_Release(doc6);
+    SysFreeString(bstr);
+
+    hres = IHTMLElement2_QueryInterface(elem, &IID_IHTMLFrameBase2, (void**)&iframe);
+    ok(hres == S_OK, "Could not get IHTMLFrameBase2 iface: %08lx\n", hres);
+    IHTMLElement2_Release(elem);
+    hres = IHTMLFrameBase2_get_contentWindow(iframe, &child);
+    ok(hres == S_OK, "get_contentWindow failed: %08lx\n", hres);
+    IHTMLFrameBase2_Release(iframe);
+
+    hres = IHTMLWindow2_get_self(window, &self);
+    ok(hres == S_OK, "get_self failed: %08lx\n", hres);
+    hres = IHTMLWindow2_get_parent(child, &parent);
+    ok(hres == S_OK, "get_parent failed: %08lx\n", hres);
+    ok(parent == self, "parent != self\n");
+    IHTMLWindow2_Release(parent);
+    IHTMLWindow2_Release(self);
+
+    navigate(doc, L"blank.html");
+
+    hres = IHTMLWindow2_get_parent(child, &parent);
+    ok(hres == S_OK, "get_parent failed: %08lx\n", hres);
+    ok(parent == child, "parent != child\n");
+
+    IHTMLWindow2_Release(parent);
+    IHTMLWindow2_Release(child);
+}
+
 static void test_doc_obj(IHTMLDocument2 *doc)
 {
     static DISPID propput_dispid = DISPID_PROPERTYPUT;
@@ -6523,6 +6565,7 @@ START_TEST(events)
             run_test_from_res(L"doc_with_prop_ie9.html", test_visibilitychange);
             run_test_from_res(L"blank_ie10.html", test_visibilitychange);
             run_test_from_res(L"iframe.html", test_unload_event);
+            run_test_from_res(L"iframe.html", test_window_refs);
             run_test(empty_doc_ie9_str, test_create_event);
             run_test(img_doc_ie9_str, test_imgload);
             run_test(input_image_doc_ie9_str, test_inputload);