TypeError: unicode argument expected, got 'str'
今天在做mock模块中的patch()方法只在运行测试的上下文中才替换对象时,使用了io.StringIO结果出现报错:
经确认是字符集的问题,考虑使用io.BytesIO解决了此问题
具体代码如下:
# -*- coding:utf-8 -*- # # from io import StringIO from io import BytesIO from unittest import TestCase from mock import patch import url class TestUrlPrint(TestCase): def test_url_gets_to_stdout(self): protocol = 'http' host = 'www' domain = 'example.com' expected_url = '{}://{}.{}\n'.format(protocol, host, domain) with patch('sys.stdout', new=BytesIO()) as fake_out: url.urlprint(protocol, host, domain) self.assertEqual(fake_out.getvalue(), expected_url)
python2.7的字符转换问题,需要多加注意。