如何在`before`钩子之前运行beforeEach

Question

I have the following code.

describe("mytest", () => {

   beforeEach(() => {
      console.log("first");
   })

   context("first context", () => {
      before(() => {
         console.log("second");
      })

   })
 
})

What I want to achieve is that I want first to get printed first and then second . It seems like the problem is before hook. beforeEach runs before each test case, but not before before hook. Any ideas?

Answer 1

Please specify your DSL in your question. I am assuming you are using BDD . I am not sure how Jest is used here, if this is a Mocha unit test?

In order to run your suite, you will need tests that actually get evaluated.

In the case of the inner-context, you are calling before prior to calling beforeEach . To reverse your call, you could change before to beforeEach inside the context .

 let step = 0; mocha.setup('bdd'); chai.should(); describe("mytest", () => { beforeEach(() => { console.log(`[before each ${step}] first`); step++; }); it('outer', () => { [].length.should.equal(0); }); context("first context", () => { beforeEach(() => { console.log(`[before ${step}] second`); }); it('inner', () => { [].length.should.equal(0); }); }); }); mocha.run();

 <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.2.5/mocha.css"> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.2.5/mocha.js"></script> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/chai/3.2.0/chai.js"></script> <div id="mocha"></div>