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": "./", ...

December 10, 2024 - In your angular application locate the karma.config.js file your angular project has these two files delete them. ... To kickstart your enhanced testing experience, begin by installing the required dependencies using your preferred package manager · # Using Yarn yarn add -D jest jest-preset-angular @types/jest # Using npm npm install -D jest jest-preset-angular @types/jest

The jest-preset-angular library ... all the dependencies we need. ... Secondly, we create a setup-jest.ts file in the root and import jest-preset-angular inside of it....

A preset of Jest configuration for Angular projects.

Jest will set process.env.NODE_ENV to 'test' if it's not set to something else. You can use that in your configuration to conditionally setup only the compilation needed for Jest, e.g.

3 weeks ago - import type { Config } from 'jest'; import { createCjsPreset } from 'jest-preset-angular/presets/index.js'; export default { ...createCjsPreset(), setupFilesAfterEnv: ['<rootDir>/setup-jest.ts'], } satisfies Config;

3 weeks ago - A preset of Jest configuration for Angular projects.

March 22, 2023 - "jest": { "preset": "jest-preset-angular", "setupFilesAfterEnv": [ "<rootDir>/src/setup.jest.ts" ], "testPathIgnorePatterns": [ "<rootDir>/node_modules/", "<rootDir>/dist/" ], "globals": { "ts-jest": { "tsConfig": "<rootDir>/tsconfig.spec.json", "stringifyContentPathRegex": "\\.html$" } } } "scripts": { "ng": "ng", "start": "ng serve", "build": "ng build", "watch": "ng build --watch --configuration development", "test": "jest", "test:watch": "jest --watch", "test:coverage": "jest --coverage" },

August 27, 2024 - Guide to set up Jest for Angular 18 applications for faster, smoother testing. Steps to uninstall Karma/Jasmine and configure Jest included

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December 24, 2020 - "jest": { "preset": "jest-preset-angular", "setupFilesAfterEnv": [ "<rootDir>/setupJest.ts" ], "testPathIgnorePatterns": [ "<rootDir>/node_modules/", "<rootDir>/dist/" ], "globals": { "ts-jest": { "tsConfig": "<rootDir>/tsconfig.spec.json", "stringifyContentPathRegex": "\\.html$" } } }

June 14, 2022 - The jest-preset-angular package is the tool that makes it possible to run our Angular unit tests using Jest.

January 14, 2026 - ... $ npm remove karma karma-chrome-launcher karma-coverage-istanbul-reporter karma-jasmine karma-jasmine-html-reporter $ rm ./karma.conf.js ./src/test.ts · Install the builder (and jest if you still haven't): $ npm i -D jest @types/jest @angular...

September 13, 2024 - Install Jest, its types, and presets for Angular npm i --save-dev jest @types/jest jest-preset-angular · 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';

March 29, 2026 - import type { Config } from 'jest'; import { createEsmPreset } from 'jest-preset-angular/presets'; import { pathsToModuleNameMapper } from 'ts-jest'; import { compilerOptions } from './tsconfig.json' with { type: 'json' }; export default { ...createEsmPreset(), transform: { '^.+\\.(ts|js|mjs|html|svg)$': [ 'jest-preset-angular', { tsconfig: '<rootDir>/tsconfig-esm.spec.json', stringifyContentPathRegex: '\\.(html|svg)$', isolatedModules: true, useESM: true, }, ], }, moduleNameMapper: { ...pathsToModuleNameMapper(compilerOptions.paths, { prefix: '<rootDir>' }), tslib: 'tslib/tslib.es6.js', }, setupFilesAfterEnv: ['<rootDir>/setup-jest.ts'], } satisfies Config;

October 3, 2021 - // package.json { ... "jest": { "preset": "jest-preset-angular", "setupTestFrameworkScriptFile": "<rootDir>/setupJest.ts" } ...

October 9, 2025 - (Optional) Create setup-jest.ts in the project root, for example indicating which levels of logs we want to be printed on the console when executing the tests.If you don’t want to add this file, you will need to remove the reference in jest.config.js file (previous step) [dm_code_snippet background=”no” background-mobile=”yes” slim=”no” line-numbers=”no” bg-color=”#abb8c3″ theme=”dark” language=”ruby” wrapped=”no” height=”” copy-text=”Copy Code” copy-confirmed=”Copied”]import ‘jest-preset-angular/setup-jest.mjs’; import ‘@testing-library/jest

June 24, 2025 - // setup-jest.ts import 'jest-preset-angular/setup-jest'; ```

September 3, 2025 - npm install -D jest jest-preset-angular @types/jest jest-environment-jsdom @angular/platform-browser-dynamic · In the src/ folder, create a new file setup-jest.ts with the following: