Android - testing when starting another activity

I am trying to test the following scenario, enter a letter in the autocomplete text box, scroll down and select one of the options, and then click the button. Pressing a button starts a new action. I want to check if a new action has begun or not. This is a testing method.

public void testSpinnerUI() {

    mActivity.runOnUiThread(new Runnable() {
        public void run() {

            mFromLocation.requestFocusFromTouch(); // use reqestFocusFromTouch() and not requestFocus()
        }
    });
    //set a busstop that has W in it, and scroll to the 4th position of the list - In this case Welcome
    this.sendKeys(KeyEvent.KEYCODE_W);
    try {
        Thread.sleep(2000); //wait for 2 seconds so that the autocomplete loads
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    for (int i = 1; i <= 4; i++) {
      this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
    }

    this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);

    assertEquals("Welcome", mFromLocation.getText().toString());

    //hit down arrow twice and centre button

    this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
    this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);

    this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);

    assertEquals(com.myApp.RouteListActivity.class, getActivity());

}

The test fails with the last assertEquals (com.myApp.RouteListActivity.class, getActivity ()). Can you advise me how to check if a new action has been launched or not?