def test_intersection(self):
bitmap_set = NdBitmapSet(_shape, elems=[_a, _b, _c])
other = NdBitmapSet(_shape, elems=[_b, _c, _d])
expected = NdBitmapSet(_shape, elems=[_b, _c])
self.assertNdBitmapSetEqual(bitmap_set.intersection(other), expected)
self.assertNdBitmapSetEqual(bitmap_set & other, expected)
self.assertNdBitmapSetEqual(other & bitmap_set, expected)
def test_intersection_multiple_others(self):
bitmap_set = NdBitmapSet(_shape, elems=[_a, _b, _c])
others = [
NdBitmapSet(_shape, elems=[_a, _b]),
NdBitmapSet(_shape, elems=[_a, _c]),
NdBitmapSet(_shape, elems=[_a, _d]),
]
expected = NdBitmapSet(_shape, elems=[_a])
self.assertNdBitmapSetEqual(bitmap_set.intersection(*others), expected)
