enzyme Questions
1
I encountered this error when I tried running a unit test for my React component. I use VSCode so I notice that when I wrote the expect().toBe(..), it doesn't auto suggest the term so I think there...
3
Solved
My component has:
class Search extends Component {
constructor(props) {
super(props);
this.state = {
searchTerm:
typeof this.props.match.params.searchTerm !== "undefined"
? this.props.match...
5
Solved
mock useDispatch in jest and test the params with using that dispatch action in functional component
Hi I am writing test for functional component using the jest and enzyme. and When I simulate a click then params(state of component using useState) of component change. and when state is changed th...
Coreen asked 24/11, 2019 at 13:19
4
Solved
I am testing a keybinding feature in a component. The component is rather simple, event listener for the keyup and fires up a redux action which will hide the component.
I have cleaned up my code h...
2
Solved
I am still new to unit testing with jest and enzyme,
I have a data-test-id and I am trying to make a unit test using that. Yet, I get an error saying that the data-test-id was not found.
I have the...
Odelia asked 21/4, 2021 at 11:9
9
Solved
So I'm writing a test for my Item component and I tried to render the ItemCard component and then use that wrapper to create a snapshot but it returns an empty ShallowWrapper {}
Please see the code...
2
I have a simple functional component which I need to test.
const Product = () => {
const handleOnChange = (value) => {
console.log(value);
}
return (
<div>
<input type="text"...
2
Solved
My Jest snapshot tests consistently fail on Travis with the following difference:
- "_instance": Constructor {
+ "_instance": {
Dev dependencies include:
"babel-jest": "^19.0.0",
"jest": "^19.0...
Nought asked 9/3, 2017 at 22:45
4
I'm using Jest and Enzyme to test a React functional component.
MyComponent:
export const getGroups = async () => {
const data = await fetch(groupApiUrl);
return await data.json()
};
expo...
Fiacre asked 2/12, 2019 at 22:15
3
We have a React component called ScrollContainer than calls a prop function when its content is scrolled to the bottom.
Basically:
componentDidMount() {
const needsToScroll = this.container.clie...
Templia asked 14/12, 2017 at 23:22
4
Solved
I'm testing a React component with Jasmine Enzyme shallow rendering.
Simplified here for the purposes of this question...
function MyOuterComponent() {
return (
<div>
...
<MyInnerCom...
9
Solved
I have a simple Todo component that utilizes react-redux hooks that I'm testing using enzyme but I'm getting either an error or an empty object with a shallow render as noted below.
What is the cor...
Shangrila asked 30/6, 2019 at 18:55
2
With the following command:
./node_modules/babel-core/register.js ./node_modules/jsdom-global/register.js **/*_spec.jsx
I am running the following test file:
"use strict";
import React from 'r...
4
Solved
I have a component MyComponent with method doSomething that updates a state, and renderChildren that renders child components based on these states:
class MyComponent extends Component {
construc...
Peculium asked 30/7, 2019 at 22:33
3
In relation to a previous question - How can Enzyme check for component visibility? I tried using jest-dom to specifically use their toBeVisible function.
Despite following the documentation I ca...
Crevice asked 16/6, 2020 at 14:30
1
Solved
How do you unit test (with jest and enzyme) a functional component that uses the useReactiveVar hook?
Should I mock the useReactiveVar hook with jest?
Storyteller asked 15/11, 2020 at 18:49
1
Solved
I'm using Jest/Enzyme to test a React/TypeScript application and I'm having a hard time trying to write a test to assert if a button shows up after a certain period of time:
Here's a very simplifie...
Serrano asked 7/5, 2021 at 19:46
4
I've spent all day diving into the Enzyme docs and starting to get the hang of the basics.
I'm looping through some data in my Redux store to render these nested <BudgetWidgetCard /> compone...
Rockfish asked 10/1, 2018 at 21:4
18
Solved
I created a new React application by create-react-app and I wanted to write a unit test to a component named "MessageBox" that I created in the application. This is the unit test that I wrote:
im...
Anaximander asked 7/5, 2018 at 21:16
4
I've created a React component that loads an image and determines if the image loaded successfully or not.
import React from 'react';
import PropTypes from 'prop-types';
import { LOADING, SUCCESS,...
Termination asked 9/6, 2017 at 16:28
2
Solved
SimpleDialog.jsx
const [imagePreview, setImagePreview] = React.useState(null);
const handleChangeImage = event => {
let reader = new FileReader();
let file = event.target.files[0];
reader....
Agretha asked 3/5, 2020 at 9:12
2
Solved
I am having some trouble with my test cases written in Jest / Enzyme. I have a React / Redux component and am trying to write a basic test but get the following error:
Invariant Violation: ReactSh...
3
Solved
This is the code that I wrote:
import {Dropdown, Menu} from 'antd';
class comp extends Component {
state = {
concept: 'Concept',
}
menuItemSelection=({key}) => {
this.setState({
concept:...
Mezereum asked 29/6, 2018 at 16:24
3
I have a React container in which I am making the API call and would like to be able to test this using jest and enzyme but unsure how to.
This is my code:
import React from "react";
import Sear...
2
This is a cancel button
<div className="cancelFileBtn" onClick={this.props.cancelFileSending}>
I need to simulate its click,I tried the following test
wrapper.find('.cancelFileBtn').simu...
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