@Override
 public void setUp() throws Exception {
   super.setUp();
   activity = this.getActivity();
   tv1 = (TextView) activity.findViewById(R.id.tv1);
   btn1 = (Button) activity.findViewById(R.id.btn1);
 }
  public void testUI() {
    activity.runOnUiThread(
        new Runnable() {
          @Override
          public void run() {
            btn1.performClick();

            assertEquals(tv1.getText().toString(), "clickBtn1");
          }
        });
    getInstrumentation().waitForIdleSync();
  }
 public void testSay() {
   assertEquals("Hello", activity.say());
 }