test_function_module.py 文件源码

def test_shared_state_not_implicit(self):
        # This test is taken from the documentation in
        # doc/topics/function.txt. If it does not pass anymore and yet the
        # behavior is still intended the doc and the test should both be
        # updated accordingly.
        x, s = T.scalars('xs')
        inc = function([x, In(s, update=(s + x), value=10.0)], [])
        dec = function([x, In(s, update=(s - x), value=inc.container[s],
                       implicit=False)], [])
        self.assertTrue(dec[s] is inc[s])
        inc[s] = 2
        self.assertTrue(dec[s] == 2)
        dec(1)
        self.assertTrue(inc[s] == 1)
        dec(1, 0)
        self.assertTrue(inc[s] == -1)
        self.assertTrue(dec[s] == -1)