Support for v19 hasn't landed yet, at least in a stable version.
But you can already test it by installing jest-preset-angular : 14.4.0-rc.0.
DEV Community
dev.to › fransaoco › how-to-set-up-jest-in-angular-19-step-by-step-guide-1c2p
How to Set Up Jest in Angular 19 (Step-by-Step Guide) - DEV Community
April 21, 2025 - module.exports = { preset: 'jest-preset-angular', setupFilesAfterEnv: ['<rootDir>/setup-jest.ts'], testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/'], transform: { '^.+\\.ts$': 'ts-jest', // Only transform .ts files }, transformIgnorePatterns: [ '/node_modules/(?!flat)/', // Exclude modules except 'flat' from transformation ], };
npm
npmjs.com › package › @angular-builders › jest
angular-builders/jest
January 14, 2026 - Latest version: 21.0.3, last published: 4 months ago. Start using @angular-builders/jest in your project by running `npm i @angular-builders/jest`. There are 2 other projects in the npm registry using ...
» npm install @angular-builders/jest
Published Jan 14, 2026
Version 21.0.3
Videos
11:31
Instala y Configura Jest en Angular 20 – Paso a Paso - YouTube
19:08
Inputs Required & Standalone Components con Jest - Testing unitario ...
01:13
[Article] Quickstart: Angular 19 Testing with Jest and Neovim - ...
01:22:53
testing unitario con JEST 🧪 en Angular - YouTube
06:21
201. Angular Unit Testing: How to test a component in Angular 19 ...
26:38
Angular x Jest - Tout comprendre sur le testing des composants ...
Konstantin Denerz
konstantin-denerz.com › quickstart-angular-19-testing-with-jest-and-neovim
Quickstart: Angular 19 Testing with Jest and Neovim · Konstantin Denerz
January 13, 2025 - Looking to simplify testing in your Angular 19 monorepo and integrate it with Neovim? This quickstart guide shows how to set up Jest, configure Angular for Jest, and leverage Neotest to run tests directly in your editor.
Reddit
reddit.com › r/angular › jest in angular.
r/angular on Reddit: Jest in Angular.
December 17, 2024 -
Hello,
I want to hear from the community about Jest tests in Angular.
I have started using it because I listened to some opinions about is fast and "easy" to mock components, services, and so on.
Example:
- I have created a test on a mat toolbar to ensure that some menu items are shown or hidden depending if the user is an admin.
- PR: https://github.com/hseleiro/Organizer/pull/59
- Component: https://github.com/hseleiro/Organizer/blob/test/toolbar-component-jest-test/src/app/shared/components/toolbar.component.ts
- Unit Test: https://github.com/hseleiro/Organizer/blob/test/toolbar-component-jest-test/src/app/shared/components/toolbar.component.spec.ts
Top answer 1 of 5
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I have it running in a smaller app I just built for work. We have about 85 test suites and 950+ tests, at last count. Takes less than a minute to run. I like Jest better than Karma/Jasmine.
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I like using Jest with Angular because it offers significantly faster test execution compared to Karma, thanks to its use of a virtual DOM (jsdom) and parallel test running. Jest is easy to set up, provides powerful mocking capabilities, and supports snapshot testing, which helps ensure the UI remains consistent. The clear error reporting and detailed logs make debugging much easier, and tools like @angular-builders/jest simplify its integration into Angular projects. Overall, it improves both test performance and developer experience, making it my preferred choice. The only downside I find with Jest is that when I run it on my computer, it makes it heat up quite a bit. But this can maybe be for all my index.ts files to analyse all dependecies. 😅
GitHub
github.com › jestjs › jest › issues › 15418
[Bug]: Jest tests failing in a NX project with Angular 19 + Openlayers 10 + Typescript 5.6 · Issue #15418 · jestjs/jest
December 12, 2024 - You can see here the commit details: ricardojbertolin/angular-19-demo@4029b4c · After that, tests for this main component started to fail. In older versions of Angular this didn't break down and worked as expected. ... System: OS: Windows 11 10.0.22621 CPU: (12) x64 13th Gen Intel(R) Core(TM) i7-1365U Binaries: Node: 22.11.0 - C:\Program Files\nodejs\node.EXE npm: 10.9.0 - C:\Program Files\nodejs\npm.CMD npmPackages: jest: 29.7.0 => 29.7.0
Author ricardojbertolin
Reddit
reddit.com › r/angular › using jest with angular 18
r/angular on Reddit: Using Jest with angular 18
July 16, 2024 -
Im currently working with implementing testing on my work project and get it to work but since we are using angular 18 with signals inputs/outputs/etc. Does anyone have any experience, resource or anything to share?
Top answer 1 of 5
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Testing SMART components and SERVICES with Signals and RxJS Has some Jest specifics How do I test Signals (signal / computed / effect) He also has videos on modern routing testing, inject, and standalone. Input Signals in Angular 17.1 - How To Use & Test @ 11:18
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Stick with jasmine until angular team implements proper jest support. They let you switch to jest but without testing coverage. Jest only has community support which is immature.
npm
npmjs.com › package › jest-preset-angular
jest-preset-angular - npm
1 month ago - Latest version: 16.1.4, last published: 24 days ago. Start using jest-preset-angular in your project by running `npm i jest-preset-angular`. There are 58 other projects in the npm registry using jest-preset-angular.
» npm install jest-preset-angular
Published Apr 09, 2026
Version 16.1.4
GitHub
github.com › mauriciovigolo › keycloak-angular › issues › 613
Jest not work after migrating to Angular 19.x ( Unexpected token "export" ) · Issue #613 · mauriciovigolo/keycloak-angular
January 14, 2025 - 5 | export const internalEnsureAuthenticated = async (_route: ActivatedRouteSnapshot, state: RouterStateSnapshot, authData: AuthGuardData) => { at Runtime.createScriptFromCode (../../../node_modules/jest-runtime/build/index.js:1505:14) at Object.<anonymous> (../../../node_modules/keycloak-angular/fesm2022/keycloak-angular.mjs:6:22) at Object.<anonymous> (web/src/ensure-authenticated.guard.ts:2:1) at Object.<anonymous> (web/src/ensure-authenticated.guard.spec.ts:4:1)
Author ValentinDEJ
Angular Training
angulartraining.com › home › how to use jest for angular unit tests?
How to use Jest for Angular Unit Tests? | Angular Newsletter
September 13, 2024 - Create a setup-jest.ts file in your project’s root folder And add that single line of code in it: import 'jest-preset-angular/setup-jest'; Create a jest.config.ts file in your project’s root folder with the following command npx jest — init Then ensure you have the following config options set in that file: preset: 'jest-preset-angular', setupFilesAfterEnv: ['./setup-jest.ts']
GitHub
github.com › thymikee › jest-preset-angular
GitHub - thymikee/jest-preset-angular: Jest configuration preset for Angular projects. · GitHub
A preset of Jest configuration for Angular projects.
Starred by 916 users
Forked by 304 users
Languages TypeScript 89.7% | JavaScript 7.1% | CSS 2.8%
Reddit
reddit.com › r/angular › jest + angular v20 + pnpm
r/angular on Reddit: Jest + Angular v20 + PNPM
June 8, 2025 -
Really simple. There is anyone using them together? I’m struggling a lot to configure jest with the new esm preset.
Top answer 1 of 4
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Used 19 like that so can't say anything for 20. But 19 was very easy with the jest generator. Maybe try setting everything up with nx, as that should work seamlessly. You can then just use it as a template for config if you don't actually want nx :)
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If you’re on v20, honestly I’d just use the new Vitest support. It’s “experimental” but Jest is basically legacy at this point considering Facebook has all but abandoned maintaining it. That’s just my opinion though.
DEV Community
dev.to › fransaoco › testing-angular-with-jest-3h6g
Testing Angular with Jest - DEV Community
April 21, 2025 - Unit tests verify small, isolated parts of your code like components, services, and pipes by testing them independently without external dependencies. They execute quickly, help find bugs early, and are straightforward to maintain. Focus on testing business logic, data transformations, and component behavior while avoiding external API calls, UI styling, and third-party library tests. In this series, I'll share practical examples of testing different parts of an Angular application using Jest.
Medium
kaleb-dalla.medium.com › how-to-configure-jest-in-your-angular-projects-d29155b8ed01
How to configure Jest in your Angular projects. | by Kaleb Dalla | Medium
November 4, 2024 - Perfect integration with Angular: Jest works perfectly with the Angular ecosystem since it supports TypeScript and offers advanced features to test pipes, components, services, etc.
GitHub
github.com › stephanrauh › angular-jest
GitHub - stephanrauh/angular-jest: Testing Angular with Jest · GitHub
Before Angular 16, there was no official support for Jest, but several great community solutions. The folder Angular 15 and below shows how to use Jest with an older Angular version.
Starred by 27 users
Forked by 9 users
Languages HTML 60.5% | TypeScript 35.8% | JavaScript 3.1%
Reddit
reddit.com › r/angular › is jest still going to be integrated officially with angular?
r/angular on Reddit: Is Jest still going to be integrated officially with Angular?
March 3, 2025 -
I've been having a nightmare trying to reconfigure an old project's tests from Jasmine/Karma to Jest, because I have many coworkers advocating for it. But I'm surprised to see that while Karma has been deprecated for almost 2 years now, ng new and the refreshed Angular docs still only go over Karma, and make no mention of Jest or other testing frameworks at all https://angular.dev/guide/testing#other-test-frameworks.
This announcement https://blog.angular.dev/moving-angular-cli-to-jest-and-web-test-runner-ef85ef69ceca mentions @angular-devkit/build-angular:jest but I'm not sure if that's worth using - googling it actually points me to https://www.npmjs.com/package/@angular-builders/jest first but I'm not sure if this is something official.
jest-preset-angular also appears in lots of guides but it seems like every guide has a different way to set that up and I find its documentation kind of a nightmare of its own. Doesn't feel particularly futureproof.
Is Jest going to be a passing fad for Angular? Is there any news of deeper, documented integration anytime soon? Is Web Test Runner support at least close to being ready?
Top answer 1 of 9
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As r/iamjediknight (and others) have already mentioned, Vitest is generally considered the more modern tool. It looks like the Angular team is also open to going directly with Vitest, skipping Jest—which, from my side, would be great news. I really hope this happens.
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Jest relies on jsdom, which is missing polyfills for things that Chrome has implemented and are widely used by libraries. So anyone using Jest that has a dependency that uses TextEncoder has to decide if they want to write their own polyfill, switch to happydom, or remove the dependency, or my colleague’s favorite method - deleting affected .spec files.
DanyWalls
danywalls.com › how-to-configure-jest-in-angular-18
How to Configure Jest in Angular 18 | DanyWalls
November 25, 2023 - When we write tests in Angular Jasmine and Karma are the default for testing library and runner, but the Angular team was working on bringing Jest to Angular. Today, we're going to experiment with the Jest Builder for Jest (Experimental) in Angular 1...
Medium
medium.com › ngconf › configure-jest-in-angular-18-79765fdb0fae
Step-by-Step Jest Configuration for Angular 18 | ngconf
August 27, 2024 - The first thing that you need to ... in Angular, you can either set it up with the Angular Jest Runner to run tests with ng test, or configure Jest separately and run tests with the jest command....
GitHub
github.com › just-jeb › angular-builders › issues › 1899
Performance regression on jest tests after upgrading to Angular 19 · Issue #1899 · just-jeb/angular-builders
January 15, 2025 - Describe the Bug Since we upgraded to Angular 19, with @angular-builders/jest 19 too, we have a huge performance regression. Locally and in our CI of our project, tests went from around 2 minutes of execution time to 15 minutes. Minimal ...
Author Abreuvoir