writing tests with jest code example
Example 1: jest
beforeAll(() => console.log('1 - beforeAll'));
afterAll(() => console.log('1 - afterAll'));
beforeEach(() => console.log('1 - beforeEach'));
afterEach(() => console.log('1 - afterEach'));
test('', () => console.log('1 - test'));
describe('Scoped / Nested block', () => {
beforeAll(() => console.log('2 - beforeAll'));
afterAll(() => console.log('2 - afterAll'));
beforeEach(() => console.log('2 - beforeEach'));
afterEach(() => console.log('2 - afterEach'));
test('', () => console.log('2 - test'));
});
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Example 2: jest
Jest is a JavaScript testing framework maintained by Facebook, Inc. with a
focus on simplicity.
It works with projects using: Babel, TypeScript, Node.js, React, Angular and
Vue.js.
It aims to work out of the box and config free.