示例#1
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 def test_diameter_changeable_but_area_not(self):
     circle = Circle(2)
     self.assertEqual(circle.diameter, 4)
     self.assertEqual(circle.area, math.pi * 4)
     circle.diameter = 3
     self.assertEqual(circle.radius, 1.5)
     with self.assertRaises(AttributeError):
         circle.area = 3
示例#2
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 def test_radius(self):
     circle = Circle(5)
     self.assertEqual(circle.radius, 5)
示例#3
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 def test_no_negative_radius(self):
     circle = Circle(2)
     with self.assertRaises(ValueError) as context:
         circle.radius = -10
     self.assertEqual(str(context.exception), "Radius cannot be negative")
示例#4
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 def test_diameter_and_area_change_based_on_radius(self):
     circle = Circle(2)
     self.assertEqual(circle.diameter, 4)
     circle.radius = 3
     self.assertEqual(circle.diameter, 6)
     self.assertEqual(circle.area, math.pi * 9)
示例#5
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 def test_string_representation(self):
     circle = Circle(2)
     self.assertEqual(str(circle), 'Circle(2)')
     self.assertEqual(repr(circle), 'Circle(2)')
     circle.radius = 1
     self.assertEqual(repr(circle), 'Circle(1)')
示例#6
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 def test_area(self):
     circle = Circle(2)
     self.assertEqual(circle.area, math.pi * 4)
     circle = Circle(1)
     self.assertEqual(circle.area, math.pi)
示例#7
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 def test_diameter(self):
     circle = Circle(2)
     self.assertEqual(circle.diameter, 4)
示例#8
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 def test_default_radius(self):
     circle = Circle()
     self.assertEqual(circle.radius, 1)