ValueMap vm = new ValueMapDecorator(map);
Resource res = mock(Resource.class);
when(res.adaptTo(ValueMap.class)).thenReturn(vm);
SimplePropertyModel model = factory.getAdapter(res, SimplePropertyModel.class);
assertNotNull(model);
assertEquals("first-value", model.getFirst());
assertNull(model.getSecond());
assertEquals("third-value", model.getThirdProperty());
assertTrue(model.isFourth());
}