Jest Sample Test Suite

jest-async.spec.js

describe ('search component', () => {

    it (`async test 1`, done=>{
        setTimeout(done, 100);
    });
    
    it (`async test 2`, ()=>{
        return new Promise(
            resolve => setTimeout(resolve, 1500)
        );
    });
    
});

jest.spec.js

describe ('search component', () => {

    beforeAll (() => {
        console.log('Before all!');
    });

    beforeEach (() => {
        console.log('Before each!');
    });

    it.only (`should display the list of search results`, () => {
        expect(2 + 2 ).toEqual(4);
    });

    it (`should display the list of search results 2`, () => {
        expect(2 + 3 ).toEqual(5);
    });

    it.skip (`should display the list of search results 3`, () => {
        expect(2 + 3 ).toEqual(5);
    });

    afterAll (() => {
        console.log('After all!');
    });

});