4 days ago - A preset of Jest configuration for Angular projects.

August 27, 2024 - To use Jest 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. I prefer not using the Angular Jest Runner because I find it simpler to configure and use Jest on its own. npm install jest \ @types/jest \ @jest/globals \ jest-preset-angular \ --save-dev

One should update component snapshots via -u Jest CLI option. Since this change only removes the root id, it shouldn't affect the quality of snapshots in general. The supported NodeJs versions are ^18.19.1 || ^20.11.1 || >=22.0.0. The minimum supported version for Angular is 18 following Angular support policy https://angular.dev/reference/releases#actively-supported-versions ... Using preset: 'jest-preset-angular' is deprecated.

A preset of Jest configuration for Angular projects.

May 9, 2026 - jest-preset-angular provides very opinionated presets and based on what we found to be useful. ... The current best practice for using presets is to call one of the utility functions below to create (and optionally extend) presets.

1 week ago - Angular doesn't support native async/await in testing with target higher than ES2016, see https://github.com/angular/components/issues/21632#issuecomment-764975917 ... For ESM configuration, please see more in details with ESM guide. In your project root, create a setup file with following contents: ... Adjust scripts part your package.json to use jest instead of ng, e.g. ... jest-preset-angular uses JSDOM which is different from normal browsers.

In this guide, I will show you how to setup Jest in your Angular 18 application · The first thing that you need to do is install all the libraries that you will use to run Jest. To use Jest 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. I prefer not using the Angular Jest Runner because I find it simpler to configure and use Jest on its own. npm install jest @types/jest @jest/globals jest-preset-angular –save-dev

April 8, 2026 - jest-preset-angular is Jest preset configuration and TypeScript preprocessor with source map support for Jest that lets you use Jest to test Angular projects.

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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 ], }; import { setupZoneTestEnv } from 'jest-preset-angular/setup-env/zone'; setupZoneTestEnv(); { "extends": "./tsconfig.json", "compilerOptions": { "outDir": "./out-tsc/spec", "types": ["jest", "node"] }, "include": [ "src/**/*.spec.ts", "src/**/*.d.ts" ] } "test": { "builder": "@angular-devkit/build-angular:jest", "options": { "tsConfig": "tsconfig.spec.json" } } "compilerOptions": { "baseUrl": "./", ...

Jest preset configuration for Angular projects · github.com/thymikee/jest-preset-angular

March 29, 2026 - }; // Or in preset configuration const { createCjsPreset } = require('jest-preset-angular/presets'); module.exports = createCjsPreset({ testEnvironment: 'jest-preset-angular/environments/jest-jsdom-env' });

* Snapshot generation is affected by ([a6b908f](https://github.com/thymikee/jest-preset-angular/commit/a6b908f)). One should update component snapshots via `-u` Jest CLI option. Since this change only removes the root `id`, it shouldn't affect the quality of snapshots in general. * The supported `NodeJs` versions are `^18.19.1 || ^20.11.1 || >=22.0.0`. * The minimum supported version for Angular is **18** following Angular support policy https://angular.dev/reference/releases#actively-supported-versions * The minimum supported version for `jsdom` is **22** * The minimum supported version of `T

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';

May 7, 2026 - However, there are cases like Angular libraries ESM built files or ESM files which are outside node_modules might not be loaded correctly. To fix that, one can use moduleNameMapper in jest config to instruct Jest to load the correct ESM files or create a custom Jest resolver. Node <22.18 · Node 22.18+ jest.config.ts · import type { Config } from 'jest'; import { createEsmPreset } from 'jest-preset-angular/presets'; export default { //... ...createEsmPreset(), moduleNameMapper: { tslib: 'tslib/tslib.es6.js', '^rxjs': '<rootDir>/node_modules/rxjs/dist/bundles/rxjs.umd.js', }, } satisfies Config; jest.config.ts ·

After this post was written, someone pointed me to briebug/jest-schematics, which is an schematic that does all these steps above for your. If you run ng add @briebug/jest it adds and configures jest-preset-angular and removes the karma dependencies and files.

January 14, 2026 - Jest runner for Angular build facade. Allows ng test run with Jest instead of Karma. 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 ...

I am getting the following error while trying to do npm install after using the angular's ng update command to update my application from angular 18 to 19. npm ERR! Could not resolve dependency: npm ... ... I'm trying to write jest unit tests for a basic angular component. But I seem to have stumbled on a strange error. A minimal repro is hosted here. When running the test using VS Code and the Jest ... ... I am trying to setup jest with Angular. jest.config.ts: import { pathsToModuleNameMapper } from 'ts-jest/utils'; import type { Config } from 'jest'; const preset = require('jest-preset-angular/jest-...