UpperCaseGrabber implements GrabberIF<Object, String> { @Override public String grab(Object object) { return object.toString().toUpperCase(); }  @Override String grab(Object object);  }
@Test public void testUpperCaseGrabber() { String str = "Don't you eat that YELLOW snow!"; testGrabber(new UpperCaseGrabber().grab(str), str.toUpperCase(), str); }