gen_test.py 文件源码

def test_empty_iterator(self):
        g = gen.WaitIterator()
        self.assertTrue(g.done(), 'empty generator iterated')

        with self.assertRaises(ValueError):
            g = gen.WaitIterator(False, bar=False)

        self.assertEqual(g.current_index, None, "bad nil current index")
        self.assertEqual(g.current_future, None, "bad nil current future")