Mocha hooks

gistfile1.txt

const log = (scope, item) => () => console.log(`${item} of ${scope}`);
const dummy = () => {};

describe('Outer scope', function() {
    before(log(this.title, 'before'));

    beforeEach(log(this.title, 'beforeEach'));

    afterEach(log(this.title, 'afterEach'));

    after(log(this.title, 'after'));

    it(`#1 in ${this.title}`, dummy);

    describe('Inner scope', function() {
        before(log(this.title, 'before'));

        beforeEach(log(this.title, 'beforeEach'));

        afterEach(log(this.title, 'afterEach'));

        after(log(this.title, 'after'));

        it(`#2 in ${this.title}`, dummy);
        it(`#3 in ${this.title}`, dummy);
    });

    it(`#4 in ${this.title}`, dummy);
});


/*
Results in

A:
Outer scope
before of Outer scope
beforeEach of Outer scope
  ✓ #1 in Outer scope
afterEach of Outer scope
beforeEach of Outer scope
  ✓ #4 in Outer scope
afterEach of Outer scope
beforeEach of Outer scope
  Inner scope
before of Inner scope
beforeEach of Inner scope
    ✓ #2 in Inner scope
afterEach of Inner scope
beforeEach of Inner scope
    ✓ #3 in Inner scope
afterEach of Inner scope
after of Inner scope
afterEach of Outer scope
after of Outer scope

OR

B:
  Outer scope
before of Outer scope
beforeEach of Outer scope
    ✓ #1 in Outer scope
afterEach of Outer scope
beforeEach of Outer scope
    ✓ #4 in Outer scope
afterEach of Outer scope
    Inner scope
before of Inner scope
beforeEach of Outer scope
beforeEach of Inner scope
      ✓ #2 in Inner scope
afterEach of Inner scope
afterEach of Outer scope
beforeEach of Outer scope
beforeEach of Inner scope
      ✓ #3 in Inner scope
afterEach of Inner scope
afterEach of Outer scope
after of Inner scope
after of Outer scope

*/