Function createFakeReadFilep

test/test-util.ts:33–42

* Creates a fake promisified readFile function from a map * @param myMap contains a filepath as the key and a ConfigFile object as the * value. * The returned function has the same interface as fs.readFile

(myMap: Map<string, ConfigFile>)

 * The returned function has the same interface as fs.readFile
 */
function createFakeReadFilep(myMap: Map<string, ConfigFile>) {
  return (configPath: string) => {
    const configFile = myMap.get(configPath);
    if (configFile) {
      return Promise.resolve(JSON.stringify(configFile));
    } else {
      return Promise.reject(`${configPath} Not Found`);
    }
  };
}

function makeFakeFsExistsSync(
  expected: PathLike[],