Method then

packages/jest-jasmine2/src/PCancelable.ts:50–61

(
    onFulfilled?:
      | ((value: T) => TResult1 | PromiseLike<TResult1>)
      | undefined
      | null,
    onRejected?:
      | ((reason: unknown) => TResult2 | PromiseLike<TResult2>)
      | undefined
      | null,
  )

  // eslint-disable-next-line unicorn/no-thenable
  then<TResult1 = T, TResult2 = never>(
    onFulfilled?:
      | ((value: T) => TResult1 | PromiseLike<TResult1>)
      | undefined
      | null,
    onRejected?:
      | ((reason: unknown) => TResult2 | PromiseLike<TResult2>)
      | undefined
      | null,
  ): Promise<TResult1 | TResult2> {
    return this._promise.then(onFulfilled, onRejected);
  }

  catch<TResult>(
    onRejected?: