def test_sphere_alt_constructor():
s = Sphere.from_diameter(test_diameter)
assert (s.radius == test_radius)
assert (s.diameter == test_diameter)
assert (s.circumference == test_circum)
assert (s.area == test_sphere_area)
assert (s.volume == test_sphere_volume)
def test_circle_comparison(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
assert s1 < s2
assert s2 > s1
assert s1 != s2
s3 = eval(repr(s2))
assert s3 == s2
def test_circle_division(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
s3 = s2 / s1
assert s3 == Sphere(2.0)
s3 = s2 / 10
assert s3 == Sphere(2.0)
assert (s2 / 10) == (20 / s1)
s2 /= 10
assert s2 == Sphere(2.0)
def test_circle_multiplication(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
s3 = s1 * s2
assert s3 == Sphere(200.0)
s3 = s1 * 40
assert s3 == Sphere(400.0)
assert (s1 * 40) == (40 * s1)
s1 *= 40
assert s1 == Sphere(400.0)
def test_circle_subtraction(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
s3 = s2 - s1
assert s3 == Sphere(10.0)
s3 = s2 - 10
assert s3 == Sphere(10.0)
assert (s2 - 10) == (30 - s2)
s2 -= 10
assert s2 == Sphere(10.0)
def test_circle_add(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
s3 = s1 + s2
assert s3 == Sphere(30.0)
s3 = s1 + 40
assert s3 == Sphere(50.0)
assert (s1 + 40) == (40 + s1)
s1 += 40
assert s1 == Sphere(50.0)
def test_circle_initialization_str_repr_and_properties(self):
s1 = Sphere(10)
s2 = Sphere.from_diameter(40)
assert type(s2) == Sphere
self.assertEqual(s1.radius, 10.0)
self.assertEqual(s1.diameter, 20.0)
self.assertEqual(s2.radius, 20.0)
self.assertEqual(s2.diameter, 40.0)
s1.radius = 30
self.assertEqual(s1.diameter, 60.0)
s2.diameter = 30
self.assertEqual(s2.radius, 15.0)
self.assertEqual(str(s1), "Sphere with radius: 30.000")
self.assertEqual(repr(s1), "Sphere(30.0)")
self.assertEqual(round(s1.area), 11310)
with pytest.raises(AttributeError) as error:
s1.area = 50
assert "AttributeError: can't set attribute" in error
self.assertEqual(round(s1.volume), 113097)
with pytest.raises(AttributeError) as error:
s1.volume = 50
assert "AttributeError: can't set attribute" in error
def test_sphere_diameter_init():
s = Sphere.from_diameter(6)
assert s.diameter == 6
assert s.radius == 3
def test_sphere_from_di():
s = Sphere.from_diameter(8)
assert s.diameter == 4
assert s.diameter == 2
