为什么固定装置中的ERB代码会抛出“未定义的方法”？

I'm trying to use fixtures to add more complex test data in order to test specific scenarios with the front-end, which is in Flex. I'm not sure this is the right way to go about it with rails. My rails app is a card game and the 'more complex test data' I'm trying to test are various combinations of cards.I'm trying to use fixtures to add more complex