test_lzma.py 文件源码

def test_roundtrip(self):
        cdata = lzma.compress(INPUT)
        ddata = lzma.decompress(cdata)
        self.assertEqual(ddata, INPUT)

        cdata = lzma.compress(INPUT, lzma.FORMAT_XZ)
        ddata = lzma.decompress(cdata)
        self.assertEqual(ddata, INPUT)

        cdata = lzma.compress(INPUT, lzma.FORMAT_ALONE)
        ddata = lzma.decompress(cdata)
        self.assertEqual(ddata, INPUT)

        cdata = lzma.compress(INPUT, lzma.FORMAT_RAW, filters=FILTERS_RAW_4)
        ddata = lzma.decompress(cdata, lzma.FORMAT_RAW, filters=FILTERS_RAW_4)
        self.assertEqual(ddata, INPUT)

    # Unlike LZMADecompressor, decompress() *does* handle concatenated streams.