jest.config.js

const fs = require('fs');
const path = require('path');

// Discover js/ directories in custom modules, resolving symlinks to real
// paths. Jest resolves symlinks internally, so roots must use real paths
// for test files to be matched.
const dirs = ['web/modules/custom'];
const roots = [];

dirs.forEach((dir) => {
  if (fs.existsSync(dir)) {
    fs.readdirSync(dir).forEach((name) => {
      const jsDir = path.resolve(dir, name, 'js');
      if (fs.existsSync(jsDir)) {
        roots.push(jsDir);
      }
    });
  }
});

module.exports = {
  testEnvironment: 'jest-environment-jsdom',
  roots: roots.length > 0 ? roots : [path.resolve('web/modules/custom')],
  testRegex: 'web/modules/custom/.+\\.test\\.js$',
  testPathIgnorePatterns: ['/node_modules/', '/vendor/'],
  modulePathIgnorePatterns: [
    '<rootDir>/web/core/',
    '<rootDir>/web/modules/contrib/',
    '<rootDir>/web/themes/',
    '<rootDir>/.vortex/',
  ],
  collectCoverageFrom: ['web/modules/custom/**/js/**/*.js', '!**/*.test.js'],
  coverageReporters: ['text', 'lcov', 'html', ['cobertura', { file: 'cobertura.xml' }]],
  coverageDirectory: '.logs/coverage/jest',
};