test_scriptexecution.py 文件源码

def test_command_output_ends_with_truncation(self):
        """After truncation, no further output is recorded."""
        factory = StubProcessFactory()
        self.plugin.process_factory = factory
        self.plugin.size_limit = 100
        result = self.plugin.run_script("/bin/sh", "")

        # Ultimately we assert that the resulting output is limited to
        # 100 bytes and indicates its truncation.
        result.addCallback(self.assertEqual,
                           ("x" * 79) + "\n**OUTPUT TRUNCATED**")
        protocol = factory.spawns[0][0]

        # Push 200 bytes of output, so we trigger truncation.
        protocol.childDataReceived(1, b"x" * 200)
        # Push 200 bytes more
        protocol.childDataReceived(1, b"x" * 200)

        for fd in (0, 1, 2):
            protocol.childConnectionLost(fd)
        protocol.processEnded(Failure(ProcessDone(0)))

        return result