Category "jestjs"

Jest gives an error: "SyntaxError: Unexpected token export"

I'm using Jest to test my React app. Recently, I added DeckGL to my app. My tests fail with this error: Test suite failed to run /my_project/node_modules/de

Jest beforeAll vs beforeEach unexpected behaviour

I have a quite simple test, basically I'm trying to mock i18next's t function: import { t } from 'i18next'; import { changeDocumentTitle } from './utils'; jest

Test process.env with Jest

I have an application that depends on environmental variables like: const APP_PORT = process.env.APP_PORT || 8080; And I would like to test that for example: A

What is jest's equivalent of `mocha -g` (grep option)?

Per the Mocha documentation, I can run a group of tests with a particular pattern in their describe/suite or it/test block using mocha -g. For example mocha -g

Babel throwing Support for the experimental syntax 'jsx' isn't currently enabled

I started newly writing unit test cases using Jest and Enzyme for the react application and when try to run test cases using jest like "test": "jest --watch" ra

Intercept navigation change with jest.js (or how to override and restore location.href)

Application code is calling location.href = "some-url". I want to write a test that verify the navigation redirect has happened. Using jest on jsdom, I tried t

TypeError: Cannot read properties of undefined (reading 'click'). fireEvent.click works but userEvent.click does not. Why?

Just started learning React testing with Jest, and am struggling with something simple. When I call userEvent.click(btn), the test fails saying that userEvent.c

Can Jest be used as browser based testing tool?

I understand that Jest is a unit testing tool for developers used for JavaScript. Is Jest a browser based testing tool similar to Selenium or a functional testi

How to mock S3 with jest?

I am tryng to code a test for upload. But i am not understating how to properly use jest.mock('aws-sdk') export class S3Service { private readonly s3: S3;

How can I modify the value of state in pinia in vue3 component test and affect the component?

Using vue-test-utils to test the component using pinia, I need to modify the value of the state stored in pinia, but I have tried many methods to no avail. The

How do I get text from input text box in selenium?

I need to insert with selenium to text box and then get it to another use. how can I do this? The function getText() doesn't work.

how to integrate jenkins with react jest testing results

My project is using reatJS, jest is used to do unit test and also to generate the coverage report. Now I need to use jenkins to automatically build the project

jest unit test mock google oauthClient in nestjs

I am currently doing unit test for the services in Nestjs using Jest, one of which is using the google Oauth service. My goal is to verify the token from google

Is there any way to mock private functions with Jest?

The ES6 module that I want to test looks as follows: function privateFunction() { ... } export function publicFunction() { ... does something ... priva

Jest Angular svg template

I have several components in my Angular 9 app that have their templates defined in svg file like templateUrl: './eye.component.svg'. When I run tests it errors

Node v13 / Jest / ES6 — native support for modules without babel or esm

Is it possible to test ES6 Modules with Jest without esm or babel? Since node v13 supports es6 natively have tried: //package.json { … "type": "modu

_vuex.default.store is not a constructor

I'm trying to test a component that uses vuex inside it, I'm trying to pass the store of the respective component so that it can be assembled, but I'm getting t

how to pass screen.height & screen.width in vue test case | Jest Framework

I have used screen.height & screen.width for js operations. I can't able to pass the test case. (code coverage). I am using vue utils - Jest framework. belo

How to disable Morgan (request logger) during unit test?

I use Morgan (default express generator request logger), and I'm trying to disable it during unit testing. Currently I'm using the default configuration, which

Jest - SyntaxError: Cannot use import statement outside a module

I am using jest:24.9.0 without any configuration, installed globally from a create-react-app. Inside these files I am using es6 modules. There is no error when