oncall-engine/grafana-plugin/jest.config.js

// force timezone to UTC to allow tests to work regardless of local timezone
// generally used by snapshots, but can affect specific tests
process.env.TZ = 'UTC';

const esModules = ['@grafana', 'uplot', 'ol', 'd3', 'react-colorful', 'uuid', 'openapi-fetch'].join('|');

module.exports = {
  ...require('./.config/jest.config'),
  testEnvironment: 'jsdom',

  moduleDirectories: ['node_modules', 'src'],
  moduleFileExtensions: ['ts', 'tsx', 'js', 'd.ts', 'cjs'],

  transformIgnorePatterns: [`/node_modules/(?!${esModules})`],

  moduleNameMapper: {
    'grafana/app/(.*)': '<rootDir>/src/jest/grafanaMock.ts',
    'openapi-fetch': '<rootDir>/src/jest/openapiFetchMock.ts',
    'jest/matchMedia': '<rootDir>/src/jest/matchMedia.ts',
    '^jest$': '<rootDir>/src/jest',
    '^.+\\.(css|scss)$': '<rootDir>/src/jest/styleMock.ts',
    '^lodash-es$': 'lodash',
    '^.+\\.svg$': '<rootDir>/src/jest/svgTransform.ts',
    '^.+\\.png$': '<rootDir>/src/jest/grafanaMock.ts',
  },

  setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],

  testTimeout: 10000,
  testPathIgnorePatterns: ['/node_modules/', '/e2e-tests/'],
  transform: {
    '^.+\\.(t|j)sx?$': [
      '@swc/jest',
      {
        sourceMaps: 'inline',
        jsc: {
          parser: {
            syntax: 'typescript',
            tsx: true,
            decorators: true,
            dynamicImport: true,
          },
        },
      },
    ],
  },
};