Use Node.contains in IE9/Webkit for isOrHasChild

user/test/com/google/gwt/user/client/ui/DOMTest.java

Index: user/test/com/google/gwt/user/client/ui/DOMTest.java
diff --git a/user/test/com/google/gwt/user/client/ui/DOMTest.java b/user/test/com/google/gwt/user/client/ui/DOMTest.java
index 17e09b99f239569c2d59b8588208ca34990141c9..cb5f5c66e21001f4ad94dad1149506cc0be641d2 100644
--- a/user/test/com/google/gwt/user/client/ui/DOMTest.java
+++ b/user/test/com/google/gwt/user/client/ui/DOMTest.java
@@ -20,6 +20,7 @@ import com.google.gwt.core.client.GWT.UncaughtExceptionHandler;
 import com.google.gwt.dom.client.BodyElement;
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.NativeEvent;
+import com.google.gwt.dom.client.Text;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.junit.DoNotRunWith;
@@ -269,20 +270,45 @@ public class DOMTest extends GWTTestCase {
    * across browsers.
    */
   public void testIsOrHasChild() {
+    Document doc = Document.get();
     Element div = DOM.createDiv();
     Element childDiv = DOM.createDiv();
-
-    assertFalse(DOM.isOrHasChild(div, childDiv));
-    assertTrue(DOM.isOrHasChild(div, div));
-
-    DOM.appendChild(div, childDiv);
-    assertTrue(DOM.isOrHasChild(div, childDiv));
-    assertFalse(DOM.isOrHasChild(childDiv, div));
-
+    Text text = Document.get().createTextNode("text");
+
+    // unattached, not related
+    assertFalse(div.isOrHasChild(childDiv));
+    assertFalse(div.isOrHasChild(text));
+    assertTrue(div.isOrHasChild(div));
+    assertTrue(text.isOrHasChild(text));
+    assertFalse(doc.isOrHasChild(div));
+    assertFalse(doc.isOrHasChild(text));
+    assertFalse(div.isOrHasChild(doc));
+    assertFalse(text.isOrHasChild(doc));
+
+    // unattached, related
+    div.appendChild(childDiv);
+    childDiv.appendChild(text);
+    assertTrue(div.isOrHasChild(childDiv));
+    assertTrue(childDiv.isOrHasChild(text));
+    assertFalse(childDiv.isOrHasChild(div));
+    assertFalse(text.isOrHasChild(childDiv));
+    assertFalse(doc.isOrHasChild(div));
+    assertFalse(doc.isOrHasChild(text));
+    assertFalse(div.isOrHasChild(doc));
+    assertFalse(text.isOrHasChild(doc));
+
+    // attached, related
     DOM.appendChild(RootPanel.getBodyElement(), div);
-    assertTrue(DOM.isOrHasChild(div, childDiv));
-    assertTrue(DOM.isOrHasChild(div, div));
-    assertFalse(DOM.isOrHasChild(childDiv, div));
+    assertTrue(div.isOrHasChild(childDiv));
+    assertTrue(childDiv.isOrHasChild(text));
+    assertTrue(div.isOrHasChild(div));
+    assertTrue(text.isOrHasChild(text));
+    assertFalse(childDiv.isOrHasChild(div));
+    assertFalse(text.isOrHasChild(childDiv));
+    assertTrue(doc.isOrHasChild(div));
+    assertTrue(doc.isOrHasChild(text));
+    assertFalse(div.isOrHasChild(Document.get()));
+    assertFalse(text.isOrHasChild(Document.get()));
   }
 
   /**