test_asyncore.py 文件源码

def test_log(self):
        d = asyncore.dispatcher()

        # capture output of dispatcher.log() (to stderr)
        fp = StringIO()
        stderr = sys.stderr
        l1 = "Lovely spam! Wonderful spam!"
        l2 = "I don't like spam!"
        try:
            sys.stderr = fp
            d.log(l1)
            d.log(l2)
        finally:
            sys.stderr = stderr

        lines = fp.getvalue().splitlines()
        self.assertEqual(lines, ['log: %s' % l1, 'log: %s' % l2])