This library will make it easier to get and set internal fields in classes using java reflection. The library is optimized for convenience and not for speed, so it works best with unit tests.
Mocking is great! Sometimes the easiest way to insert mocks are by Java reflection. Especially if you cannot use constructor arguments or setter methods.
@Test
public void storeMethodShouldSaveEntity() throws Exception {
// Setup entities
EntityHandler handler = new EntityHandlerImpl();
StoreDao storeDao = mock(StoreDao.class);
// Insert mock into handler
new ReflectionHelper(handler).setField(storeDao);
// Perform method
handler.store();
// Verify save method
verify(storeDao).save();
}