test_pipes.py 文件源码

def testSimplePipe2(self):
        with open(TESTFN, 'w') as f:
            f.write('hello world #2')
        t = pipes.Template()
        t.append(s_command + ' < $IN > $OUT', pipes.FILEIN_FILEOUT)
        t.copy(TESTFN, TESTFN2)
        with open(TESTFN2) as f:
            self.assertEqual(f.read(), 'HELLO WORLD #2')