I recently wanted to test that some custom method gets conditionally called in the componentDidMount method of a React component.  componentDidMount() {   if (this.props.initOpen) {     this.methodName();   } }   I'm using Jest as my testing fram...

Simulating a button click seems like a very easy/standard operation. Yet, I can't get it to work in Jest.js tests.   This is what I tried (and also doing it using jquery), but it didn't seem to trigger anything:  import { mount } from 'en...

I'm trying to shallow render a component to perform some basic unit tests.  The component I am doing this on has two child components which are rendered several times each depending on the parents props.  When querying the shallow rendered compon...

I have a serious problem with testing methods of my main  component. My actual test after many retries still don't work and looks like this:  describe('<App />:', () => {     beforeEach(() => {         wrapper = mount(<Prov...

I have my button inside a component, which calls a method deleteData on click. How do I test the deleteData method is called on the button click in jest?  <Modal.Footer>   <Button id="trashBtn" onClick={this.deleteData}>Delete<...

Alright I have a component called <TestButton />. Inside the <TestButton /> there are two Semantic UI React component, <Button /> and <Header>.  Basically, when the <Button> is clicked, it toggles display: none; to <H...

Issue:  I am running my tests with Jest and Enzyme when I came across this error when I was running my code on a different machine.  When I run npm test which only runs jest --coverage --verbose it will get this error every time. However, this doesn&...

I want to test if my state is updated after an API call in my component. I have a method lets say method1() and in that method, it calls fetch and sets the state to the results. Here is the method:  method1 = () => { if (this.state.state1 !== "...

Hi I'm trying to test a react module that contains the code <img alt='avatar' src={require(`../../assets/${avatar}`)} /> which concats a path and a prop containing a file name received from the redux store. It renders fine but the t...

I have a component that makes use of Animated component from react native. I started writing a test case to simulate onPress of a component, which calls a function that has Animated.timing in it, and setState.  running jest works fine, but the tests...