transform.py 文件源码

def test_before_with_callback(self):
        count = [0]
        def content():
            count[0] += 1
            yield '%2i.' % count[0]
        self.assertEqual(
            self._apply('foo/text()', content),
            [(None, 'START', u'root'),
             (None, 'TEXT', u'ROOT'),
             (None, 'START', u'foo'),
             (None, 'TEXT', u' 1.'),
             ('OUTSIDE', 'TEXT', u'FOO'),
             (None, 'END', u'foo'),
             (None, 'START', u'bar'),
             (None, 'TEXT', u'BAR'),
             (None, 'END', u'bar'),
             (None, 'END', u'root')]
            )