我的功能测试涉及回形针和附件存在问题。我正在使用fixture_file_upload方法伪造附件上传。
我的测试间歇性地给出了下面的错误（或类似的错误），由factory_girl调用生成包含附件的对象，该错误在我的设置块中。
@asset = Factory(:asset, :item => fixture_file_upload('test.png','image/png'))
但是，即使在最终的每个测试中都运行了设置块，也不会为每个测试生成此错误。在文件中运行单个测试（调用设置块和上面的方法）运行正常。只有多次测试才能得到错误（并且根据运行的测试数量而定并不一样。）因此，对fixture_file_upload的多次调用存在某种冲突。
任何人对如何解决这个问题都有任何想法？谢谢。
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