使用 mocha.js 测试 CLI 应用程序

Question

I want to test a CLI app and want to receive user input while the test is running, since mocha.js has 200ms limit the test is failing. So I want to know how to halt the test while the script is getting input and resume after getting it.

Answer 1

You can increase test timeouts like so;

describe('increased timeout', function(){
  it('should not timeout', function(done){
    this.timeout(2000);
    setTimout(done, 1500);
  });
});

But I don't recommend you do this. You can use nexpect or stream-expect to simulate user input. This way you can write alot of automated tests.

Example usage of stream-expect

Answer 2

您的测试运行器可以添加超时参数，类似于此。

mocha -r ts-node/register test/index.ts **--timeout 15000** --reporter mochawesome

Answer 3

You should make your test async. Add done argument and invoke it when you done. http://visionmedia.github.io/mocha/ - check Asynchronous code section for samples.

http://jsfiddle.net/iskomorokh/3jnoyovb/9/

@UPDATE based on the feedback:

Timeouts can be disabled this way:

this.enableTimeouts(false);

And here is a link to docs