def test_rectangle_from_many_representations():
x1, y1 = 0, 1
x2, y2 = 2, 3
r1 = Rectangle.from_list((x1, y1, x2, y2))
r2 = Rectangle(Point(x1, y1), Point(x2, y2))
r3 = Rectangle.from_list([x1, y1, x2, y2])
r4 = Rectangle.from_list([x1, y2, x2, y1])
r5 = Rectangle.from_list([x2, y2, x1, y1])
rects = [r1, r2, r3, r4, r5]
for ri, rj in it.product(rects, repeat=2):
assert ri == rj
r_different = Rectangle.from_list([y1, x1, x2, y2])
for r in rects:
assert r != r_different
def test_rectangle_intersection():
r_large = Rectangle.from_list([0, 0, 5, 5])
r_small = Rectangle.from_list([1, 1, 2, 2])
r_touching = Rectangle.from_list([0, 0, 4, 5])
r_other = Rectangle.from_list([-3, -3, -1, -1])
assert Rectangle.intersection([r_other, r_touching]) == Rectangle.empty()
assert Rectangle.intersection([r_large, r_small]) == r_small
assert Rectangle.intersection([r_large, r_large]) == r_large
int1 = Rectangle.intersection(
[Rectangle.from_list([0, 0, 2, 2]),
Rectangle.from_list([0, 2, 1, 3])])
assert int1 == Rectangle.from_list([0, 2, 1, 2])
assert int1 != Rectangle.empty()
assert Rectangle.intersection([r_other,
Rectangle.empty()]) == Rectangle.empty()
with pytest.raises(ValueError):
Rectangle.intersection([])
with pytest.raises(ValueError):
Rectangle.intersection([Rectangle.empty()])
def test_rectangle_contains():
r_large = Rectangle.from_list([0, 0, 5, 5])
r_small = Rectangle.from_list([1, 1, 2, 2])
r_mid = Rectangle.from_list([-1, -1, 3, 3])
r_touching = Rectangle.from_list([0, 0, 4, 5])
assert r_small in r_small # pylint: disable=comparison-with-itself
assert r_small in r_large
assert r_mid not in r_large
assert r_touching in r_large
assert r_small in r_mid
assert r_mid not in r_touching
assert r_small in r_touching
assert Point(0, 0) in r_large
assert Point(0, 0) not in r_small
assert Point(1, 1) in r_large
assert Point(1, 1) in r_small
def test_rectangle_centered_at():
x, y = 1, 2
radius = 2
rect_centered_at_xy = Rectangle.centered_at(Point(x, y), radius)
assert rect_centered_at_xy.area == (2 * radius) ** 2
assert rect_centered_at_xy.width == 2 * radius
assert rect_centered_at_xy.height == 2 * radius
assert rect_centered_at_xy == Rectangle.from_list((x - radius, y - radius, x + radius, y + radius))
def test_rectangle_centered_at():
x, y = 1, 2
radius = 2
rect_centered_at_xy = Rectangle.centered_at(Point(x, y), radius)
assert rect_centered_at_xy.area == (2 * radius)**2
assert rect_centered_at_xy.width == 2 * radius
assert rect_centered_at_xy.height == 2 * radius
assert rect_centered_at_xy == Rectangle.from_list(
(x - radius, y - radius, x + radius, y + radius))
with pytest.raises(ValueError):
Rectangle.centered_at(Point(1, 2), -1)
def test_rectangle_resized():
d = 3
r = Rectangle.from_list([1, 2, 6, 7])
R = r.resized(delta=d)
assert R.area == 2 * d * (r.width + r.height + 2 * d) + r.area
assert R.contains(r)
assert Rectangle.intersection([R, r]) == r
assert Rectangle.bounding_box([R, r]) == R
with pytest.raises(AssertionError):
_ = r.resized(delta=-6)
assert r.resized(delta=-r.width / 2) == Rectangle(r.center, r.center)
def test_rectangle_properties():
x1, y1 = 0, 1
x2, y2 = 2, 3
w = x2 - x1
h = y2 - y1
r = Rectangle.from_list((x1, y1, x2, y2))
assert r.x == x1
assert r.y == y1
assert r.center == Point((x1 + x2) / 2, (y1 + y2) / 2)
assert r.width == w
assert r.height == h
assert r.area == w * h
assert r.bounds == (0, 1, 2, 3)
def test_rectangle_clip(src, clip_by, dst):
assert Rectangle.from_list(src).clip(
Rectangle.from_list(clip_by)) == Rectangle.from_list(dst)
def test_rectangle_sub():
r_large = Rectangle.from_list([0, 0, 5, 5])
r_moved = r_large - Point(1, 2)
assert r_moved.bounds == (-1, -2, 4, 3)
def test_rectangle_add():
r_large = Rectangle.from_list([0, 0, 5, 5])
r_moved = r_large + Point(1, 2)
assert r_moved.bounds == (1, 2, 6, 7)