text: module.exports = (config) => {
    config.set({
      mutator: 'javascript',
      packageManager: 'npm',
      reporters: ['clear-text', 'progress-append-only', 'html'],
      files: [
        '**/*',
        '!.coverage/**/*',
        '!.nyc_output/**/*',
        '!node_modules/**/*',
        '!.stryker-tmp/**/*',
        '!stryker.log',
      ],
      testFramework: 'mocha',
      mutate: [
        'app/middleware/**/*.js',
        'app/lib/**/*.js',
        'app/routes/*.js',
        'app/utils/*.js',
        'app/view-filters/*.js',
        'app/start-pages-sub-app/routes/*.js',
      ],
      thresholds: {
        high: 80,
        low: 65,
        break: 50,
      },
    });
  };
  