Node 单元测试

Mocha

全局安装 mocha

npm install -g mocha

在项目根目录执行 mocha 命令，默认执行 test 目录下的所有测试文件

mocha 

测试覆盖率 istanbul

npm install -g istanbul

$ istanbul cover _mocha

$ istanbul cover _mocha test/test.sqrt.js

gyw@gyw:~/Desktop/code/project/StressTestCode/test$ istanbul cover _mocha .


  test case
    ✓ app.listen()
    ✓ test autobahnHandle()
    ✓ test upload()


  3 passing (17ms)

=============================================================================
Writing coverage object [/home/gyw/Desktop/code/project/StressTestCode/test/coverage/coverage.json]
Writing coverage reports at [/home/gyw/Desktop/code/project/StressTestCode/test/coverage]
=============================================================================

=============================== Coverage summary ===============================
Statements   : 40.91% ( 27/66 )
Branches     : 0% ( 0/8 )
Functions    : 8.33% ( 1/12 )
Lines        : 40.91% ( 27/66 )
================================================================================

运行单元测试出现如下错误

Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

解决方式: 添加 timeout

it('test()', function (done) {
  done();
}).timeout(1000000);