test_process.py 文件源码

def testStdio(self):
        """twisted.internet.stdio test."""
        exe = sys.executable
        scriptPath = util.sibpath(__file__, "process_twisted.py")
        p = Accumulator()
        d = p.endedDeferred = defer.Deferred()
        env = {"PYTHONPATH": os.pathsep.join(sys.path)}
        reactor.spawnProcess(p, exe, [exe, "-u", scriptPath], env=env,
                             path=None, usePTY=self.usePTY)
        p.transport.write("hello, world")
        p.transport.write("abc")
        p.transport.write("123")
        p.transport.closeStdin()

        def processEnded(ign):
            self.assertEquals(p.outF.getvalue(), "hello, worldabc123",
                              "Output follows:\n"
                              "%s\n"
                              "Error message from process_twisted follows:\n"
                              "%s\n" % (p.outF.getvalue(), p.errF.getvalue()))
        return d.addCallback(processEnded)