diff --git a/test-runner/android/test/mock/MockDialogInterface.java b/test-runner/android/test/mock/MockDialogInterface.java
new file mode 100644
index 0000000..e4dd0ba
--- /dev/null
+++ b/test-runner/android/test/mock/MockDialogInterface.java
@@ -0,0 +1,20 @@
+// Copyright 2008 The Android Open Source Project
+
+package android.test.mock;
+
+import android.content.DialogInterface;
+
+/**
+ * A mock {@link android.content.DialogInterface} class.  All methods are non-functional and throw 
+ * {@link java.lang.UnsupportedOperationException}. Override it to provide the operations that you 
+ * need.
+ */
+public class MockDialogInterface implements DialogInterface {
+    public void cancel() {
+        throw new UnsupportedOperationException("not implemented yet");
+    }
+
+    public void dismiss() {
+        throw new UnsupportedOperationException("not implemented yet");
+    }
+}