Questions tagged [vitest]
Vitest is a blazing-fast unit test framework powered by Vite.
vitest
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vitest problem with the configuration file "Expression Expected" Error in React Component Testing
I'm experiencing an issue when running tests with Vitest in a React project. The test fails with an "Expression expected" error, and adding console logs in the test file does not display any ...
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1
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44
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renderHook not rendering items called from API
I have a custom hook (useFetch), which I'm using inside a page to pass data into a <Products/> component.
export default function App() {
const { products, totalProducts, currentPage, ...
-1
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1
answer
41
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typescript build Vitest node dependency problems
I'm currently migrating a JavaScript project to TypeScript (and this is my first attempt at TS). For some reason, tsc --build throws a bunch of errors for vitest not being able to resolve the node ...
- 1,417
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How test a file drag-and-drop using Vitest?
I'm trying to test a drag-and-drop of a file into a Vue component and right now I'm using Vitest but all the resources on drag-and-drop I found were only for using Jest to achieve that so:
How to test ...
- 5,744
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Mocking Neo4J GraphQL OGM in typescript / vitetest
I'm struggling to get a clean solution to mock the use of Noe4j GraphQL OGM using vitetest but cant quite work out the best way to do this cleanly..
I do not seem to be able to find a way to mock ...
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44
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Render problem when testing react component
Hello I am trying to make a test for filtering columns, when I filter one column, it will say ´1 kolonner skjult´, if I filter 2 it will say 2 instead. When I make individual tests for these, they ...
- 85
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45
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How do I expose a library to the global window in Vitest?
So we are in the middle of adding Vitest to an existing project that currently relies on Webpack for bundling our code. We are in the process of rewriting older jQuery code into React.
Right now i'm ...
- 820
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Expected "spy" to be called with arguments: [ '/' ]
I want to check if my button takes the user to the home page, but I'm having trouble mocking the useNavigate function from "react-router"
This is what I am using to mock the funcion:
const ...
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28
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Vitest fails when testing a typescript file
So I have a monorepo with a package called "types".
In this package I have installed vitest and I want to test this file:
src/marketplaces.ts
import { z } from 'zod';
export const ...
- 996
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queryAllByRole('checkbox') works different depending on environment
I have a Vitest test that uses expect(screen.queryAllByRole('checkbox').length).toBeGreaterThan(0)
Running in the WebStorm test runner, the test passes. Running via nx in the terminal (and in CI) ...
- 12.7k
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Vitest: TypeError: Cannot read properties of undefined (reading 'once')
I am trying to setup a unittest using vitest based on a reactjs project.
This is my unittest code from Gamesettings.test.tsx:
import { it, expect, describe } from 'vitest';
import {screen, render} ...
- 66
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32
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How do you test a Pinia store state changed by a function within a component?
So I have a very simple test for testing a simple function. Basically I have a "uiStore" with a state "isNotificationsOpen". I have a component that has a function "...
- 183
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2
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46
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Issue with typescript compiler not recognising my vitest extended matchers
I have a typescript project where I have some unit tests that use extending matchers from vitest. The test are running fine, but if I run lint I keep getting errors like this one:
src/utils/tests/...
- 1,533
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32
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Port already in use when testing an Express server with Vitest
I have the following class named Server. This is responsible for container methods to start and stop the server:
class Server {
private app!: Express;
private port!: number;
private server!: ...
- 739
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How is a component with multiple setInterval() tested?
There are two setInterval() functions within a component I'm working on. Once the function start_new_game sets the component state variable level equal to '0', the component will invoke useEffect. The ...
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