enzyme Questions
3
Solved
I am trying for the first time to use React context API to pass information from a main component to a grandchild component.
So first I have created a context
const MyContext = React.createContext(...
Fimbriation asked 17/4, 2019 at 14:39
2
Solved
I used "useEffect" to achieve functionality of "componentWillUnmount" in functional component. How to trigger that while testing the component using Jest/Enzyme?
My Component:
c...
Thoroughbred asked 4/5, 2021 at 11:44
2
I have created a container in react-native and have added animations to the screen. For checking if the screen is focused or not, I am using the useIsFocussed hook from @react-navigation/native lib...
Retread asked 22/6, 2020 at 6:59
3
Solved
How to fix my situation? Jest + Enzyme testing of function below returns
TypeError: window.getSelection is not a function
My code:
_addNewAgent () {
window.getSelection().removeAllRanges();
...
4
I'm getting an error: Invalid Chai property: toMatchSnapshot when I try to use Jest + Enzyme's snapshot testing. I've updated my React version to 16.2 and I use enzyme-to-json library with Enzyme 3...
8
I have a <UserListComponent /> which outputs one <Contact /> component and list of contacts presentated by <Contacts />.
The problem is that in the test for <UserListComponen...
Overcheck asked 25/4, 2018 at 15:9
2
Solved
I am writing a web app on next js(with typescript and styled-component). I started writing tests and when using mount, an error crashes
TypeError: Cannot read property 'child' of undefined
But if ...
2
Solved
I am using globalThis property specifically globalThis.scrollTo(0,0) in my React WebApp.
I am using Jest for unit testing alongwith Enzyme.
As of test cases fail as it is unable to identify globa...
Floor asked 1/4, 2020 at 17:11
8
Solved
I'm using Enzyme with enzyme-to-json to do Jest snapshot testing of my React components. I'm testing shallow snapshots of a DateRange component that renders a display field with the current range (...
Deckhand asked 2/12, 2016 at 15:39
5
I see quite a few similar questions to this, but all seem wildly outdated or incredibly convoluted.
I have a React component which contains a React Router Link component, like so:
export default ...
Britt asked 6/8, 2017 at 3:0
8
Solved
I am using UseHistory hook in react router v5.1.2 with typescript? When running unit test, I have got issue.
TypeError: Cannot read property 'history' of undefined.
import { mount } from 'enzy...
Hymn asked 15/10, 2019 at 10:44
2
So I converted an import used in a class component to React.lazy import api and wrapped it in a Suspense tag. When I test that class component, enzyme throws an error "Enzyme Internal Error: unknow...
Disabuse asked 13/12, 2018 at 19:32
8
Solved
How do I test input.focus() in enzyme. I am writing the script with react. My code is below:
public inputBox: any;
componentDidUpdate = () => {
setTimeout(() => {
this.inputBox.focus();
}...
Gayton asked 8/6, 2016 at 6:34
2
Solved
I am currently setting up unit tests with usage of following stack:
react (v15) components are written with typescript (.tsx)
test setup is done with jest(v21) and enzyme(v3)
test files are writt...
Waterside asked 5/2, 2018 at 15:27
3
I need to test a catch when the fetching data request rejects but I don't understand why the error is not being caught and I get this error:
UnhandledPromiseRejectionWarning: Unhandled promise rej...
Dabble asked 27/5, 2020 at 8:6
3
Solved
Say I have the following component which I grabbed from https://www.codeday.top/2017/11/08/56644.html. Here I am using match.params to access the id. How would I write a unit test for this componen...
Nervine asked 20/2, 2018 at 22:52
3
I have a navigation component that uses Link, IndexLink to render the navigation bar:
class Navigation extends Component {
renderLinks = (linksData) => {
return linksData.map((link) => {
...
Templin asked 19/1, 2017 at 13:31
3
I'm new to Unit testing. I want to test React project. As I started with React documentation which refers to enzyme as test utility which is kind of ambiguous to me.
What is the difference between...
Vassell asked 6/3, 2017 at 2:26
4
I tried to use enzyme to simulate change event on a checkbox, and use chai-enzyme to assert if it's been checked.
This is my Hello react component:
import React from 'react';
class Hello extends...
Emarie asked 6/10, 2016 at 9:23
2
Solved
I've got a simple component wrapped around a Material UI Checkbox. I've stripped it down to the bare minimum here.
//@flow
import React from "react";
import { Checkbox } from "@material-ui/core";
...
Parturition asked 30/4, 2020 at 16:2
3
Solved
I am using JEST and Enzyme. In my eslint file I have added jest as true under env. But I get a lint error for shallow as I have included it globally. Error is- error 'shallow' is not defined no-und...
4
I would like to configure npm test in my server. when I run npm test, it invokes react-scripts test which triggers a prompt window ( attached screen ). How do I avoid the prompt and run all testcas...
0
I have this hook that should trigger beforeunload event when the compoenent is mounted and unmounted.
const UseHook = (fns: (e) => void) => {
const cb = useRef(fns);
useEffect(() => {
...
4
I am trying to test a React component that runs some asynchronous code and calls setState in componentDidMount.
Here is my react component that I want to test:
/**
*
* AsyncComponent
*
*/
import...
1
Solved
I am trying to learn tdd in react. I have a parent component which gets props from app component and based on the props render either child1 component or child2 component. Here are my react files:
...
© 2022 - 2024 — McMap. All rights reserved.