I am trying to spyOn a chained function for my socketIO server. The first toSpy is working fine but I seem to be unable to check the emit chained function. Anyone a simple and elegant way to test a chained…
Difference between jest vs enzyme vs mocha. 
Which is better for writing test case in react native for functional Component ? I want to know the difference between jest vs enzyme vs mocha. Which is better for writing test case.
For example, ComponentA.tsx: const ComponentA = () => { return ( <> <ComponentB/> </> ) } ComponentA.test.tsx describe("ComponentA", () => { it("Calls ComponentB in render", () => { render(<ComponentA/>); const componentB = <ComponentB/>; expect(componentB).toHaveBeenCalledTimes(1); }); }); Tried the above but…
I am working in a Vite project, my goal is to be able to write tests. So I setup Jest and Babel and write a test, but I'm getting an error like this: C:UsersjoaovOneDriveDev ProjetosProjetos pessoaiscsgo-e-commercenode_modulesfirebaseappdistindex.esm.js:1 ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){import { registerVersion }…
Hope anyone already overcome this issue. codesandbox I want to check, that after changing appliedIds, loadCampaign will be executed. As we say in disposer: addDisposer( self, reaction(() => self.appliedIds, this.loadCampaign), ); So how can I do it? How to wait…
import { format, getDaysInMonth, getMonth, getYear, isValid, parse } from "date-fns"; export class DateService { public getDaysInMonth(month?: Date) { return getDaysInMonth(month || new Date()); } How do I test it? How can I access the function implementation?
I have a following action, it's an axios call with curried dispatch. Note: originally, we wouldn't need to curry the action call like that, but let's say there is a situation where I need to make it curried (code below…
Meteor.settings is being used in a react class component that I am trying to mock. In the constructor of that component, Meteor.settings is accessed to get a url. I am using the moduleMapper from jest to mock Meteor.settings like so:…
I have the following import logo from './logo.svg'; import './App.css'; import AppBar from '@mui/material/AppBar'; ... import axios from "axios"; import { useState, useEffect } from 'react'; ... function App() { } Everything runs fine but when I try to run…
I am making use of axios in my react app along with MUI for styling. I had no error while development but now when i started to write test for my react app using react testing library and jest i…