Method onEnd

packages/jest-worker/src/Farm.ts:87–94

(error: Error | null, result: unknown)

        };

        const onEnd: OnEnd = (error: Error | null, result: unknown) => {
          customMessageListeners.clear();
          if (error) {
            reject(error);
          } else {
            resolve(result);
          }
        };

        const task = {onCustomMessage, onEnd, onStart, request};