def test_sphere_set_diameter():
"""
Tests the setter method for the Sphere class
property diameter.
"""
s1 = Sphere(3)
s2 = Sphere(10)
s1.diameter = 6
assert s1.diameter == 6
assert s1.radius == 3
assert s2.radius == 10
assert s2.diameter == 20
s2.diameter = 3
assert s2.diameter == 3
assert s2.radius == 1.5
def test_setter():
c = Circle(4)
c.diameter = 2
assert c.diameter == 2
assert c.radius == 1
s = Sphere(4)
s.diameter = 2
assert s.diameter == 2
assert s.radius == 1
def test_diameter():
s = Sphere(4)
assert s.diameter == 8
s.diameter = 4
assert s.radius == 2
circles.sort(key=Circle.sort_key, reverse=True)
assert circles[0] == c10
assert circles[-1] == c1
# Test reflection
assert c6 * 20 == 20 * c6
# Test augmentation
assert c11 == Circle(150)
assert c12 == Circle(150)
c11 += c12
assert c11 == Circle(300)
c11 *= c12
assert c11 == Circle(45000)
# Test Sphere subclass additional derived attributes
s1 = Sphere(10)
assert int(s1.volume) == 4188
assert int(s1.area) == 1256 # override Circle area property
# Test alternate constructor
s2 = Sphere.from_diameter(20)
assert s2.radius == 10
# Test str and repr reflect Sphere subclass
s1.diameter = 100
s2.diameter = 200
assert s1.__str__() == "Sphere(50.0)"
assert s2.__repr__() == "Sphere(100.0)"
assert c2 == Circle(8)
s1 = Sphere(2)
s2 = Sphere(4)
s3 = Sphere(4)
assert s1 < s2
assert s2 == s3
assert s2 != s1
assert s1 * 3 == 3 * s1
s1 *= 20
assert s1 == 40
s2 += s3
assert s2 == Sphere(8)
########
# Step 9
########
def test_volume():
s = Sphere(4)
assert round(s.volume, 5) == 268.08257
s = Sphere(4)
s.diameter = 2
assert s.diameter == 2
assert s.radius == 1
def test_sphere_diameter_change():
c = Sphere(5)
assert c.diameter == 10
c.diameter = 50
assert c.diameter == 50
assert c.radius == 25
def test_sphere_diameter_change():
c = Sphere(10)
c.diameter = 10
assert c.radius == 5