Assertions in async callbacks will not mark tests as failed

Looking through the tests for NSS I see some that don't appear to actually achieve anything (unless I'm missing something).

Some of them have been marked to skip, which is fair enough.

For example:

https://github.com/solid/node-solid-server/blob/master/test/integration/ldp-test.js#L178
https://github.com/solid/node-solid-server/blob/master/test/integration/ldp-test.js#L199
https://github.com/solid/node-solid-server/blob/master/test/integration/ldp-test.js#L214
https://github.com/solid/node-solid-server/blob/master/test/integration/ldp-test.js#L326 (This one isn't skipped)

If they're in tests like that, there could be a possibility that it's leaked into NSS itself as well.

首先阅读 test/integration/ldp-test.js 第 178、199、214 和 326 行的异步测试用例。检查其回调中的断言是如何处理的，然后检查相关的 NSS 测试代码是否存在相同的模式。完成的标准是受影响的测试能够可靠地报告断言失败，而不是静默通过。