159 lines
4.6 KiB
TypeScript
159 lines
4.6 KiB
TypeScript
/*
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This file is part of GNU Taler
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(C) 2021-2023 Taler Systems S.A.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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import { renderHook } from "@testing-library/preact-hooks"
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import { useAsync } from "../../src/hooks/async.js"
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/**
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*
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* @author Sebastian Javier Marchano (sebasjm)
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*/
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test("async function is called", async () => {
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jest.useFakeTimers()
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const timeout = 500
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const asyncFunction = jest.fn(() => new Promise((res) => {
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setTimeout(() => {
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res({ the_answer: 'yes' })
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}, timeout);
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}))
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const { result, waitForNextUpdate } = renderHook(() => {
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return useAsync(asyncFunction)
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})
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expect(result.current?.isLoading).toBeFalsy()
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result.current?.request()
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expect(asyncFunction).toBeCalled()
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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jest.advanceTimersByTime(timeout + 1)
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeFalsy()
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expect(result.current?.data).toMatchObject({ the_answer: 'yes' })
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expect(result.current?.error).toBeUndefined()
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expect(result.current?.isSlow).toBeFalsy()
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})
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test("async function return error if rejected", async () => {
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jest.useFakeTimers()
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const timeout = 500
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const asyncFunction = jest.fn(() => new Promise((_, rej) => {
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setTimeout(() => {
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rej({ the_error: 'yes' })
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}, timeout);
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}))
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const { result, waitForNextUpdate } = renderHook(() => {
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return useAsync(asyncFunction)
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})
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expect(result.current?.isLoading).toBeFalsy()
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result.current?.request()
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expect(asyncFunction).toBeCalled()
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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jest.advanceTimersByTime(timeout + 1)
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeFalsy()
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expect(result.current?.error).toMatchObject({ the_error: 'yes' })
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expect(result.current?.data).toBeUndefined()
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expect(result.current?.isSlow).toBeFalsy()
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})
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test("async function is slow", async () => {
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jest.useFakeTimers()
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const timeout = 2200
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const asyncFunction = jest.fn(() => new Promise((res) => {
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setTimeout(() => {
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res({ the_answer: 'yes' })
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}, timeout);
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}))
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const { result, waitForNextUpdate } = renderHook(() => {
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return useAsync(asyncFunction)
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})
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expect(result.current?.isLoading).toBeFalsy()
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result.current?.request()
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expect(asyncFunction).toBeCalled()
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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jest.advanceTimersByTime(timeout / 2)
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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expect(result.current?.isSlow).toBeTruthy()
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expect(result.current?.data).toBeUndefined()
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expect(result.current?.error).toBeUndefined()
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jest.advanceTimersByTime(timeout / 2)
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeFalsy()
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expect(result.current?.data).toMatchObject({ the_answer: 'yes' })
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expect(result.current?.error).toBeUndefined()
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expect(result.current?.isSlow).toBeFalsy()
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})
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test("async function is cancellable", async () => {
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jest.useFakeTimers()
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const timeout = 2200
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const asyncFunction = jest.fn(() => new Promise((res) => {
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setTimeout(() => {
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res({ the_answer: 'yes' })
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}, timeout);
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}))
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const { result, waitForNextUpdate } = renderHook(() => {
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return useAsync(asyncFunction)
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})
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expect(result.current?.isLoading).toBeFalsy()
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result.current?.request()
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expect(asyncFunction).toBeCalled()
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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jest.advanceTimersByTime(timeout / 2)
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeTruthy()
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expect(result.current?.isSlow).toBeTruthy()
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expect(result.current?.data).toBeUndefined()
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expect(result.current?.error).toBeUndefined()
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result.current?.cancel()
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await waitForNextUpdate({ timeout: 1 })
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expect(result.current?.isLoading).toBeFalsy()
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expect(result.current?.data).toBeUndefined()
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expect(result.current?.error).toBeUndefined()
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expect(result.current?.isSlow).toBeFalsy()
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})
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