def test_book_example(self):
# Default is HI_Open
f_interval = Interval(Fraction(1, 4), Fraction(3, 5))
print(f_interval)
assert f_interval.contains(Fraction(1, 4))
assert not f_interval.contains(Fraction(3, 5))
# Intervals can be constructed with integer ranges. Note the resulting boundary policy.
interval = Interval(1, 5, BoundaryPolicy.Closed).intersection(
Interval(4, 6, BoundaryPolicy.Open))
assert interval.policy == BoundaryPolicy.LO_Open
print(interval)
def test_simple_interval(self):
int_interval = Interval(5, 9)
assert int_interval.contains(7)
assert int_interval.contains(6)
assert Interval.intersects(int_interval, Interval(7, 10))
assert int_interval.intersection(Interval(7, 10)) == Interval(
7, 9).intersection(int_interval)
def test_boundary(self):
f_interval = Interval(Fraction(1, 4), Fraction(3, 5))
assert f_interval.contains(Fraction(1, 4))
assert not f_interval.contains(Fraction(3, 5))
f_interval = Interval(Fraction(1, 4), Fraction(3, 5),
BoundaryPolicy.Open)
assert not f_interval.contains(Fraction(1, 4))
assert not f_interval.contains(Fraction(3, 5))
f_interval = Interval(Fraction(1, 4), Fraction(3, 5),
BoundaryPolicy.Closed)
assert f_interval.contains(Fraction(1, 4))
assert f_interval.contains(Fraction(3, 5))
f_interval = Interval(Fraction(1, 4), Fraction(3, 5),
BoundaryPolicy.LO_Open)
assert not f_interval.contains(Fraction(1, 4))
assert f_interval.contains(Fraction(3, 5))
