test_unicode.py 文件源码

def test_spawn_utf8_incomplete(self):
        # This test case ensures correct incremental decoding, which
        # otherwise fails when the stream inspected by os.read()
        # does not align exactly at a utf-8 multibyte boundry:
        #    UnicodeDecodeError: 'utf8' codec can't decode byte 0xe2 in
        #                        position 0: unexpected end of data
        p = pexpect.spawnu('cat', maxread=1)
        p.sendline('????????')
        p.sendeof()
        p.expect('????????')