def test_sqrt_2(self):
     result = sqrt(1015)
     self.assertEqual(result, 31.85906464414798)
 def test_sqrt_3(self):
     result = sqrt(7)
     self.assertEqual(result, 2.6457513110645907)
 def test_sqrt_1(self):
     result = sqrt(4)
     self.assertEqual(result, 2)