nodejs - Boiler plate of a test.js file (jest)

sample.spec.js

/* eslint-disable no-undef */
import { jest } from '@jest/globals'

// run before all tests (setup)
beforeAll(async () => {
  // setup the test environment
  // mock
})

// run before each test
beforeEach(async () => {
  jest.clearAllMocks()
})

describe('utils/sum.js', () => {
  describe('sum function', () => {
    test('Should return the sum of two numbers', async () => {
      const sum = (num1, num2) => { return num1 + num2 }

      expect(sum(2, 3)).toBe(5)
    })
  })
})