test_lzma.py 文件源码

def test_init_bad_check(self):
        with self.assertRaises(TypeError):
            LZMAFile(BytesIO(), "w", check=b"asd")
        # CHECK_UNKNOWN and anything above CHECK_ID_MAX should be invalid.
        with self.assertRaises(LZMAError):
            LZMAFile(BytesIO(), "w", check=lzma.CHECK_UNKNOWN)
        with self.assertRaises(LZMAError):
            LZMAFile(BytesIO(), "w", check=lzma.CHECK_ID_MAX + 3)
        # Cannot specify a check with mode="r".
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_NONE)
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_CRC32)
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_CRC64)
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_SHA256)
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_UNKNOWN)