TF.newTuple(ImmutableList.of("ALL", "ALL", "ALL")),
TF.newTuple(ImmutableList.of("ALL", "b", "ALL"))
);
CubeDimensions cd = new CubeDimensions("ALL");
DataBag bag = cd.exec(t);
assertEquals(bag.size(), expected.size());
for (Tuple tup : bag) {
assertTrue(expected.contains(tup));
}