blueprints.py 文件源码

def test_add_template_filter_with_name(self):
        bp = flask.Blueprint('bp', __name__)
        def my_reverse(s):
            return s[::-1]
        bp.add_app_template_filter(my_reverse, 'strrev')
        app = flask.Flask(__name__)
        app.register_blueprint(bp, url_prefix='/py')
        self.assert_in('strrev', app.jinja_env.filters.keys())
        self.assert_equal(app.jinja_env.filters['strrev'], my_reverse)
        self.assert_equal(app.jinja_env.filters['strrev']('abcd'), 'dcba')