test_pipes.py 文件源码

def testSimplePipe3(self):
        with open(TESTFN, 'w') as f:
            f.write('hello world #2')
        t = pipes.Template()
        t.append(s_command + ' < $IN', pipes.FILEIN_STDOUT)
        f = t.open(TESTFN, 'r')
        try:
            self.assertEqual(f.read(), 'HELLO WORLD #2')
        finally:
            f.close()