What do you want to save?
Add Code snippet
New code examples
-
Other 2021-11-09 19:32:13
how to spy on console.error jest
beforeAll(() => { // Create a spy on console (console.log in this case) and provide some mocked implementation // In mocking global objects it's usually better than simple `jest.fn()` // because you can `unmock` it in clean way doing `mockR... Add solution -
Other 2021-11-05 09:04:22
simple jest test cases for array of objects
import pizzas from '../data'; // very basic test to notify the user if our pizza data has changed test('the pizza data is correct', () => { expect(pizzas).toMatchSnapshot(); expect(pizzas).toHaveLength(4); expect(pizzas.map(pizza => pizza.nam... Add solution -
Javascript 2021-10-26 15:35:11
angular9 spy
it("should be able to upper case a string", function () { var spytoUpperCase = spyOn(String.prototype, 'toUpperCase') expect(utils.toUpperCase).toBeDefined(); expect(utils.toUpperCase("hello world")).toEqual("HELLO WORLD")... Add solution -
Javascript 2021-10-19 13:17:12
jest async test fetch api
// fetch.js async function fetchUser() { const url = 'https://jsonplaceholder.typicode.com/users' const response = await fetch(url) return await response.json() } const fetchPosts = { async postAPI() { const url = 'https://jsonplaceholder.typ... Add solution -
TypeScript 2021-09-22 07:31:02
ionic 4 unit testing example for modalcontroller
it('should display the Add photo modal when the button is clicked and logged in', () => { let pub = { phone: '123123' } component.pub = pub; let authService = fixture.debugElement.injector.get(AuthService); authService.lo... Add solution -
Javascript 2021-09-17 20:40:02
react eznyme fetch api using hooks
//app.js import React from 'react' import FetchData from './FetchData' const fetchUsers = () => fetch('https://jsonplaceholder.typicode.com/users').then((res) => res.json()) function App() { return ( <> <FetchData fetchUsers={... Add solution -
Javascript 2021-09-09 11:31:01
mockimplementation for setstate
import * as React from 'react'; describe('Some message', () => { const setState = jest.fn(); // eslint-disable-next-line @typescript-eslint/no-explicit-any const useStateMock: any = (initState: any) => [initState, setState]; afterE... Add solution