def test_xooxx_False(self): self.assertEqual(False, xo('xooxx'))
def test_zzoo_False(self): self.assertEqual(False, xo('zzoo'))
def test_ooxx_True(self): self.assertEqual(True, xo('ooxx'))
def test_zpzpzpp_True(self): self.assertEqual(True, xo('zpzpzpp'))