test_tarfile.py 文件源码

def test_stream_padding(self):
        # Test for bug #1543303.
        tar = tarfile.open(tmpname, self.mode)
        tar.close()

        if self.mode.endswith("gz"):
            with gzip.GzipFile(tmpname) as fobj:
                data = fobj.read()
        elif self.mode.endswith("bz2"):
            dec = bz2.BZ2Decompressor()
            with open(tmpname, "rb") as fobj:
                data = fobj.read()
            data = dec.decompress(data)
            self.assertTrue(len(dec.unused_data) == 0,
                    "found trailing data")
        else:
            with open(tmpname, "rb") as fobj:
                data = fobj.read()

        self.assertTrue(data.count("\0") == tarfile.RECORDSIZE,
                         "incorrect zero padding")