test_inlinecb.py 文件源码

def test_returnValueNonLocalDeferred(self):
        """
        L{returnValue} will emit a non-local warning in the case where the
        L{inlineCallbacks}-decorated function has already yielded a Deferred
        and therefore moved its generator function along.
        """
        cause = Deferred()
        @inlineCallbacks
        def inline():
            yield cause
            self.mistakenMethod()
            returnValue(2)
        effect = inline()
        results = []
        effect.addCallback(results.append)
        self.assertEqual(results, [])
        cause.callback(1)
        self.assertMistakenMethodWarning(results)