def test_isEven_6(self):
     self.assertFalse(isEven(-21))
 def test_isEven_5(self):
     self.assertTrue(isEven(-10))
 def test_isEven_4(self):
     self.assertFalse(isEven(21))
 def test_isEven_3(self):
     self.assertTrue(isEven(10))
 def test_isEven_2(self):
     self.assertFalse(isEven(1))
 def test_isEven_1(self):
     self.assertTrue(isEven(0))