test_process.py 文件源码

def _endProcess(self, reason, p):
        self.failIf(reason.check(error.ProcessDone),
                    'Child should fail due to EPIPE.')
        reason.trap(error.ProcessTerminated)
        # child must not get past that write without raising
        self.failIfEqual(reason.value.exitCode, 42,
                         'process reason was %r' % reason)
        self.failUnlessEqual(p.output, '')
        return p.errput