2021-04-019_05.tsx

const mockSuccess = (value: SuccessValue): Promise<SuccessValue> => {
    return new Promise(resolve => {
        setTimeout(() => resolve(value), 2000)
    })
}

const mockFailure = (value: FailureValue): Promise<FailureValue> => {
    return new Promise((resolve, reject) => {
        setTimeout(() => reject(value), 2000)
    })
}