def test_interval_union_issubset_error():
iu = IntervalUnion([[0, 10], [20, 30], [40, 50]])
with pytest.raises(Exception) as exinfo:
assert iu.issubset([[0, 100]])
msg = (
"issubset is only defined on Interval and IntervalUnion, "
"but <class 'list'> was given"
)
assert str(exinfo.value) == msg
def test_interval_union_issubset_part():
iu1 = IntervalUnion([[0, 10], [20, 30], [40, 50]])
iu2 = IntervalUnion([[20, 30], [40, 50]])
assert not iu1.issubset(iu2)
assert iu2.issubset(iu1)
def test_interval_union_issubset_not():
iu = IntervalUnion([[0, 10], [20, 30], [40, 50]])
interval = Interval(12, 14)
assert not iu.issubset(interval)
assert not interval.issubset(iu)