backend_tests.py 文件源码

def test_ffi_buffer_array(self):
        ffi = FFI(backend=self.Backend())
        a = ffi.new("int[]", list(range(100, 110)))
        try:
            b = ffi.buffer(a)
        except NotImplementedError as e:
            py.test.skip(str(e))
        content = b[:]
        if sys.byteorder == 'little':
            assert content.startswith(b'\x64\x00\x00\x00\x65\x00\x00\x00')
            b[4] = b'\x45'
        else:
            assert content.startswith(b'\x00\x00\x00\x64\x00\x00\x00\x65')
            b[7] = b'\x45'
        assert len(content) == 4 * 10
        assert a[1] == 0x45