def test_round():
assert Interval(1.2, 3.4).round() == (1, 3)
assert Interval(1.2, 3.4).round(method=math.floor) == (1, 3)
assert Interval(1.2, 3.4).round(method=math.ceil) == (2, 4)
assert Interval.open_closed(1.2, 3.4).round() == Interval.open_closed(1, 3)
assert Interval.closed_open(1.2, 3.4).round() == Interval.closed_open(1, 3)
assert Interval.empty().round() == Interval.empty()
def test_subset():
d = Interval(1, 3)
assert d.is_subset_of((0, 4))
assert d.is_subset_of((1, 3))
assert not d.is_subset_of(Interval.closed_open(1, 3))
assert d.is_superset_of((2, 2))
assert d.is_superset_of((1, 3))
assert d.is_superset_of(Interval.closed_open(1, 3))
def test_equals():
d = Interval(1, 3)
assert d.equals((1, 3))
assert not d.equals(None)
assert not d.equals(Interval.closed_open(1, 3))
assert Interval.empty().equals(Interval.empty())
# Empty intervals are always equal
assert Interval.open(1, 1).equals(Interval.open(2, 2))
assert Interval.infinite().equals(Interval.infinite())
def update_interval(self):
len_trend_points = len(self.trend_points)
if self._line is None:
if len_trend_points == 1:
self.search_interval = Interval.point(self.trend_points[0][0])
else:
self.search_interval = Interval.empty()
return
p0, p1 = self._line
if p0[0] == p1[0]:
# vertical line
self.search_interval = Interval.point(p0[0])
return
if self.search_length_rel <= 0:
self.search_interval = Interval.closed(p0[0], p1[0])
return
x_min = p0[0]
x_max = p1[0]
intersection = self.intersections[0] if len(
self.intersections) != 0 else None
if intersection is not None and intersection[0] <= x_min:
intersection = None
if intersection is None or len_trend_points >= self.min_points:
# search ahead
x_length = (x_max - x_min) * self.search_length_rel
else:
# not enought points to go through intersection
x_length = intersection[0] - x_min
# if intersection is None:
# # search ahead
# x_length = (x_max - x_min) * self.search_length_rel
# elif len_trend_points >= self.min_points:
# # search ahead of intersection
# x_length = (intersection[0] - x_min) * self.search_length_int_rel
# else:
# # not enought points to go through intersection
# x_length = intersection[0] - x_min
x_max = x_min + x_length
self.search_interval = Interval.closed_open(x_min, x_max)
def _accumulator_map_scan(self, x, y, _):
points = [[x, y]]
if self.degree is not None:
if self.degree != 1:
points += self.curve.sample_points_from_x(
x,
self.degree - 1,
backward=True,
open=True,
min_step=self.min_step)
elif self.period is not None:
points += reversed(
self.curve.sample_points(domain=Interval.closed_open(
x - self.period, x),
min_step=self.min_step))
else:
raise Exception('Bad config')
ys = [p[1] for p in points]
return self._accumulator_map(x, ys)
def test_arithmetic():
assert Interval(1, 3) + (2, 4) == (1, 4)
assert (1, 3) + Interval(2, 4) == (1, 4)
assert Interval.open(1, 3) + (2, 4) == Interval.open_closed(1, 4)
assert (1, 3) + Interval.open(2, 4) == Interval.closed_open(1, 4)