*The gist has Stories, Tests, and Feature Code: https://gist.github.com/johntimothybailey/6aba19f4abb34d89b626e9fe906c5453 * How do I write a Testing Library test for a component that uses Tanstack Query? When I try the following the tests timeout. What I notice is that the isLoading…
In my React Testing Library unit test, I am unable to get the Navlink by role. getByRole('link', { name: 'help' }) - This fails The Navlink does not have text, rather it has a help icon which seems to be…
I have a react project based on minimal theme RTL and jest are integrated into this project as well. Locally running unit tests command is this "test:dev": "react-app-rewired test --transformIgnorePatterns 'node_modules/(?!my-library-dir)/'", This runs the unit tests and gives the expected…
I have created a custom hook that I am going to use to build a custom scroll component. The hook works however I am failing to cover it with unit test. I believe it's because I am not mocking the…
I'm building a twitter clone app and I'm utilizing TDD. I've gotten to the point where I'm trying to test a user being able to edit a tweet. The idea is, if a user clicks on the current tweet, it…
I am unable to reach window.onerror in React tests with vitest, jsdom, and React Testing Library when throwing inside an event handler. The same test passes in Jest. Goal: Assert that window.onerror is called when an error is thrown in…
I'm testing a custom react hook. At any given point in time, the Funnel component displays only one child (a Funnel.Step component). It first displays the first Funnel.Step component (<div>Step 1 UI</div>). I used act to change the Funnel.Step component.…
I'm using RTL and have a test: describe('Image component', () => { it('renders avatar', () => { render(<Image {...args} />); const element = document.querySelector('img'); expect(element.src).toContain(args.image); }); }); After switching on strictNullChecks, I got error on final line saying 'element' is…
I have this helper const getPrefix = ({ value }: MyValue) => { switch (value) { case 'Value one': return 'Prefix one'; case 'Value two': return 'Prefix two'; default: return null; } }; However my test is failing: describe('getPrefix', ()…
I am trying to test the below scenario with React Router V3. Based on the step prop, I set some state variables and then render the component. The correct screen is then displayed based on the props passed to const…