Function normalizeModuleMockOptions

lib/internal/test_runner/mock/mock.js:825–879

(options)

}

function normalizeModuleMockOptions(options) {
  const { cache = false } = options;
  validateBoolean(cache, 'options.cache');

  const hasExports = 'exports' in options;
  const hasNamedExports = 'namedExports' in options;
  const hasDefaultExport = 'defaultExport' in options;

  deprecateNamedExports(options);
  deprecateDefaultExport(options);

  const moduleExports = { __proto__: null };

  if (hasExports) {
    validateObject(options.exports, 'options.exports');
  }

  if (hasNamedExports) {
    validateObject(options.namedExports, 'options.namedExports');
  }

  if (hasExports && (hasNamedExports || hasDefaultExport)) {
    let reason = "cannot be used with 'options.namedExports'";

    if (hasDefaultExport) {
      reason = hasNamedExports ?
        "cannot be used with 'options.namedExports' or 'options.defaultExport'" :
        "cannot be used with 'options.defaultExport'";
    }

    throw new ERR_INVALID_ARG_VALUE('options.exports', options.exports, reason);
  }

  if (hasExports) {
    copyOwnProperties(options.exports, moduleExports);
  }

  if (hasNamedExports) {
    copyOwnProperties(options.namedExports, moduleExports);
  }

  if (hasDefaultExport) {
    ObjectDefineProperty(
      moduleExports,
      'default',
      ObjectAssign({ __proto__: null }, ObjectGetOwnPropertyDescriptor(options, 'defaultExport')),
    );
  }

  return {
    __proto__: null,
    cache,
    moduleExports,
  };
}


function copyOwnProperties(from, to) {