@Before
public void setUp() throws Exception {
control = EasyMock.createStrictControl();
preloader = control.createMock(PipelinedDataPreloader.class);
preloaderService = new ConcurrentPreloaderService(Executors.newSingleThreadExecutor(), null);
rewriter = new PipelineDataGadgetRewriter(new PipelineExecutor(preloader, preloaderService,
Expressions.forTesting()));
}