def test_sphere__str__():
"""
Verifies the built-in string method and built-in repr method
gets set as expected when initializing a Sphere object.
"""
s2 = Sphere(10)
assert repr(s2) == "Sphere(10)"
assert s2.__str__() == "Sphere with radius: 10.00000"
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)"
def test_sphere_str():
""" Verify sphere __str__ output """
radius = 5
a_sphere = Sphere(radius)
assert a_sphere.__str__() == f"Sphere with radius: {radius}"