private ArrayList<Tuple> expectedTuplesPerDay;
private ArrayList<Tuple> allExpectedTuples;
@Before
public void prepare() throws Exception {
source = new MemorySourceTap(
Lists.<Tuple>newArrayList(
new Tuple(USER_A, ATTRIBUTE_1, DAY1, 1),
new Tuple(USER_A, ATTRIBUTE_1, DAY1, 1),
new Tuple(USER_A, ATTRIBUTE_1, DAY1, 1),
new Tuple(USER_A, ATTRIBUTE_1, DAY2, 1),