test: fix test on windows

[dead-horse]

Checklist

• npm test passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

Description of change

[mention-bot]

@dead-horse, thanks for your PR! By analyzing the history of the files in this pull request, we identified @popomore, @atian25 and @fengmk2 to be potential reviewers.

[popomore]

看看日志，schedule 也要 close？

[dead-horse]

@popomore app.close 之后 schedule 就会停了，agent 进程都退出了

[codecov]

Codecov Report

Merging #18 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #18   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           3      3           
  Lines         104    104           
=====================================
  Hits          104    104

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[popomore]

看看这个日志，里面 logger 被关闭了还在打印，说明 interval 没关 https://travis-ci.org/eggjs/egg-schedule/jobs/225680044

[dead-horse]

app.close 之后，agent 没退出？

[popomore]

先关 app https://github.com/eggjs/egg-mock/blob/master/lib/app.js#L129

[dead-horse]

我后面再看看吧，现在看来就是影响自己的测试。而且这个是 cluster 模式启动的

[dead-horse]

我看到有一个 stop schedule 的用例，确保了 app.close 之后没有执行 schedule 的，日志的报错感觉不是 schedule 打出来的。

[popomore]

好的