def test_area(self):
circ = Circle(1)
self.assertEqual(math.pi, circ.area())
def test_something(self):
circ = Circle(5.2)
print(circ)
circ_string = str(circ)
self.assertGreaterEqual(circ_string.find("5.2"), 0)
def test_area_zero_radius(self):
circ = Circle(0)
area = circ.area()
self.assertEqual(0, area)
