To test this failed subscription notification delivery scenario, we can use a mock.

为了测试这个失败的订阅通知发送场景，可以使用mock。

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In this scenario, the Presentation layer (Report Server) JVM was unable to create the login page before users failed out.

在这种情况下，表现层(报表服务器)JVM在用户遇到错误之前已经无法创建登录页面。

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He says, "...the use case transaction 'Purchase financial product' may contain a scenario for successful purchase and another one for failed one [sic]."

他说，“用例业务‘购买金融产品’可能包含一系列成功的产品或者失败的”。

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