public void testRemoveGlobalOnLayoutListener() {
final LinearLayout layout = (LinearLayout) mActivity.findViewById(R.id.linearlayout);
mViewTreeObserver = layout.getViewTreeObserver();
MockOnGlobalLayoutListener listener = new MockOnGlobalLayoutListener();
assertFalse(listener.hasCalledOnGlobalLayout());
mViewTreeObserver.addOnGlobalLayoutListener(listener);
mViewTreeObserver.dispatchOnGlobalLayout();
assertTrue(listener.hasCalledOnGlobalLayout());
listener.reset();
assertFalse(listener.hasCalledOnGlobalLayout());
mViewTreeObserver.removeGlobalOnLayoutListener(listener);
mViewTreeObserver.dispatchOnGlobalLayout();
assertFalse(listener.hasCalledOnGlobalLayout());
}
