def test_2004_is_bissextile(self):
     self.assertTrue(bissextile.is_bissextile(2004))
 def test_1998_is_bissextile(self):
     self.assertFalse(bissextile.is_bissextile(1998))
 def test_2015_is_bissextile(self):
     self.assertFalse(bissextile.is_bissextile(2015))
 def test_2016_is_bissextile(self):
     self.assertTrue(bissextile.is_bissextile(2016))