test_lzma.py 文件源码

def test_init_bad_preset(self):
        with self.assertRaises(TypeError):
            LZMAFile(BytesIO(), "w", preset=4.39)
        with self.assertRaises(LZMAError):
            LZMAFile(BytesIO(), "w", preset=10)
        with self.assertRaises(LZMAError):
            LZMAFile(BytesIO(), "w", preset=23)
        with self.assertRaises(OverflowError):
            LZMAFile(BytesIO(), "w", preset=-1)
        with self.assertRaises(OverflowError):
            LZMAFile(BytesIO(), "w", preset=-7)
        with self.assertRaises(TypeError):
            LZMAFile(BytesIO(), "w", preset="foo")
        # Cannot specify a preset with mode="r".
        with self.assertRaises(ValueError):
            LZMAFile(BytesIO(COMPRESSED_XZ), preset=3)