### Question:
Views { public static void visible(View view) { if (view != null) { view.setVisibility(View.VISIBLE); } } private  Views(); static void visible(View view); static void invisible(View view); static void gone(View view);  }### Answer:
@Test public void setViewVisibilityVisible() { Views.visible(mockView); verify(mockView, times(1)).setVisibility(View.VISIBLE); }