private final CategoryFilterFactory categoryFilterFactory = new CategoryFilterFactoryStub();
@Test
public void shouldCreateFilter() throws Exception {
FilterFactoryParams params = new FilterFactoryParams(
createSuiteDescription(testName.getMethodName()),
CategoryFilterFactoryStub.class.getName());
Filter filter = categoryFilterFactory.createFilter(params);
assertThat(filter, instanceOf(DummyFilter.class));