def test_sub_combinations(self):
assert (volA - volB) == volume.CVDefinedVolume(op_id, -0.5, 0.25)
assert (volB - volC) == volB
assert (volA - volD) == volume.EmptyVolume()
assert (volB - volA) == volume.CVDefinedVolume(op_id, 0.5, 0.75)
assert ((volD - volA) == volume.UnionVolume(
volume.CVDefinedVolume(op_id, -0.75, -0.5),
volume.CVDefinedVolume(op_id, 0.5, 0.75)))
assert (volA2 - volA) == volume.RelativeComplementVolume(volA2, volA)
def test_sub_combinations(self):
assert_equal((volA - volB), volume.CVRangeVolume(op_id, -0.5, 0.25))
assert_equal((volB - volC), volB)
assert_equal((volA - volD), volume.EmptyVolume())
assert_equal((volB - volA), volume.CVRangeVolume(op_id, 0.5, 0.75))
assert_equal(
(volD - volA),
volume.UnionVolume(volume.CVRangeVolume(op_id, -0.75, -0.5),
volume.CVRangeVolume(op_id, 0.5, 0.75)))
assert_equal((volA2 - volA),
volume.RelativeComplementVolume(volA2, volA))