def test_add_mul_circles():
c1 = cr.Circle(2)
c2 = cr.Circle(4)
d = c1 + c2
assert eval(repr(d)) == 'Circle(6)'
d = c2 * 3
assert eval(repr(d)) == 'Circle(12)'
d = 3 * c2
assert eval(repr(d)) == 'Circle(12)'
def test_circle_dia_set():
c = cr.Circle(4)
c.diameter = 2
print(c.diameter)
print(c.radius)
assert c.diameter == 2
assert c.radius == 1
def test_area_calc():
c = cr.Circle(2)
print(c.area)
assert c.area == (pi * 2**2)
try:
c.area = 42
except AttributeError:
print('you can not set area')
def test_compare_cir():
c1 = cr.Circle(2)
c2 = cr.Circle(4)
assert (c1 > c2) == False
assert (c1 < c2) == True
assert (c1 == c2) == False
c3 = cr.Circle(4)
assert (c2 == c3) == True
c4 = cr.Circle(8)
c5 = cr.Circle(1)
c6 = cr.Circle(44)
c7 = cr.Circle(23)
c8 = cr.Circle(13)
circles = [c1, c2, c3, c4, c5, c6, c7, c8]
circles.sort(key=cr.Circle.sort_key)
print(circles)
assert eval(repr(circles[0])) == ('Circle(1)')
assert eval(repr(circles[-1])) == ('Circle(44)')
assert False
def test_print():
c = cr.Circle(4)
print(c)
# assert print(c) == "Circle with radius: 4.000000"
assert repr(c) == ("'Circle(4)'")
assert eval(repr(c)) == ('Circle(4)')
def test_circle_create():
c = cr.Circle(4)
print(c.radius)
assert c.radius == 4
def test_circle_diameter():
c = cr.Circle(4)
print(c.diameter)
assert c.diameter == 8