@shko.online/componentframework-mock/lib/esm/utils/DelayedPromise.js

Mocking library to help with testing PowerApps Component Framework Components

export class DelayedPromise {
  static resolveAfterDelay(value, delay) {
    return new Promise(resolve => setTimeout(() => resolve(value), delay));
  }
  static rejectAfterDelay(reason, delay) {
    return new Promise((_, reject) => setTimeout(() => reject(reason), delay));
  }
}