@nx/jest/preset/jest-preset.js

The Nx Plugin for Jest contains executors and generators allowing your workspace to use the powerful Jest testing capabilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.nxPreset = void 0;
exports.nxPreset = {
    // This is one of the patterns that jest finds by default https://jestjs.io/docs/configuration#testmatch-arraystring
    testMatch: ['**/?(*.)+(spec|test).[jt]s?(x)'],
    resolver: '@nx/jest/plugins/resolver',
    moduleFileExtensions: ['ts', 'js', 'mjs', 'html'],
    coverageReporters: ['html'],
    transform: {
        '^.+\\.(ts|js|html)$': [
            'ts-jest',
            { tsconfig: '<rootDir>/tsconfig.spec.json' },
        ],
    },
    testEnvironment: 'jsdom',
    /**
     * manually set the exports names to load in common js, to mimic the behaviors of jest 27
     * before jest didn't fully support package exports and would load in common js code (typically via main field). now jest 28+ will load in the browser esm code, but jest esm support is not fully supported.
     * In this case we will tell jest to load in the common js code regardless of environment.
     *
     * this can be removed via just overriding this setting in it's usage
     *
     * @example
     * module.exports = {
     *   ...nxPreset,
     *   testEnvironmentOptions: {},
     * }
     */
    testEnvironmentOptions: {
        customExportConditions: ['node', 'require', 'default'],
    },
};