Best JavaScript code snippet using testing-library-react-hooks
cleanup.js
Source:cleanup.js
...60function addCleanup(callback) {61 cleanupCallbacks.add(callback);62}63exports.addCleanup = addCleanup;64function removeCleanup(callback) {65 cleanupCallbacks.delete(callback);66}...
test_mixins.js
Source:test_mixins.js
...23 var f1 = this.pushCleanup(new A(1));24 this.f2 = this.pushCleanup(2, cleanup);25 this.pushCleanup(new A(3));26 this.pushCleanup(new A(4));27 this.removeCleanup(f1);28 f1();29 this.popCleanup();30 },31 remove2: function(){32 if(this.removeCleanup(this.f2)){33 this.f2();34 this.f2 = null;35 }36 },37 destroy: function(){38 msgs.push(-99);39 }40 });41 var b = new B();42 eval(t.TEST('msgs.join(",") == "1,3,4,-1,-4"'));43 b.remove2();44 eval(t.TEST('msgs.join(",") == "1,3,4,-1,-4,-2"'));45 b.remove2();46 eval(t.TEST('msgs.join(",") == "1,3,4,-1,-4,-2"'));...
cleanup.ts
Source:cleanup.ts
...8}9function addCleanup(callback) {10 cleanupCallbacks.push(callback);11}12function removeCleanup(callback) {13 cleanupCallbacks = cleanupCallbacks.filter((cb) => cb !== callback);14}...
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks'2import { useCounter } from './useCounter'3test('should increment counter', () => {4 const { result } = renderHook(() => useCounter())5 act(() => {6 result.current.increment()7 })8 expect(result.current.count).toBe(1)9})10test('should decrement counter', () => {11 const { result } = renderHook(() => useCounter())12 act(() => {13 result.current.decrement()14 })15 expect(result.current.count).toBe(-1)16})17test('should reset counter', () => {18 const { result } = renderHook(() => useCounter())19 act(() => {20 result.current.increment()21 result.current.increment()22 result.current.increment()23 result.current.reset()24 })25 expect(result.current.count).toBe(0)26})27test('should increment counter by 5', () => {28 const { result } = renderHook(() => useCounter())29 act(() => {30 result.current.incrementBy(5)31 })32 expect(result.current.count).toBe(5)33})34test('should decrement counter by 5', () => {35 const { result } = renderHook(() => useCounter())36 act(() => {37 result.current.decrementBy(5)38 })39 expect(result.current.count).toBe(-5)40})41test('should increment counter by 5 and then reset', () => {42 const { result } = renderHook(() => useCounter())43 act(() => {44 result.current.incrementBy(5)45 result.current.reset()46 })47 expect(result.current.count).toBe(0)48})49test('should decrement counter by 5 and then reset', () => {50 const { result } = renderHook(() => useCounter())51 act(() => {52 result.current.decrementBy(5)53 result.current.reset()54 })55 expect(result.current.count).toBe(0)56})57test('should increment counter by 5 and then decrement by 5', () => {58 const { result } = renderHook(() => useCounter())59 act(() => {60 result.current.incrementBy(5)61 result.current.decrementBy(5)62 })63 expect(result.current.count).toBe(0)64})65test('should decrement counter by 5 and then increment by 5', () => {66 const { result } = renderHook(() => useCounter())67 act(() => {
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import { useCounter } from './useCounter';3test('useCounter', () => {4 const { result, unmount } = renderHook(() => useCounter());5 act(() => result.current.increment());6 expect(result.current.count).toBe(1);7 unmount();8});9import { useState, useEffect } from 'react';10export const useCounter = () => {11 const [count, setCount] = useState(0);12 useEffect(() => {13 const id = setInterval(() => setCount((c) => c + 1), 1000);14 return () => clearInterval(id);15 }, []);16 const increment = () => setCount((c) => c + 1);17 return { count, increment };18};
Using AI Code Generation
1import { renderHook, act } from "@testing-library/react-hooks";2import { useCounter } from "./useCounter";3describe("useCounter", () => {4 it("should increase the counter", () => {5 const { result } = renderHook(() => useCounter());6 act(() => {7 result.current.increment();8 });9 expect(result.current.count).toBe(1);10 });11});12import { useState, useEffect } from "react";13export const useCounter = () => {14 const [count, setCount] = useState(0);15 useEffect(() => {16 console.log("useEffect called");17 return () => {18 console.log("useEffect cleanup called");19 };20 }, [count]);21 return {22 increment: () => setCount(count + 1),23 decrement: () => setCount(count - 1),24 };25};26import { renderHook, act } from "@testing-library/react-hooks";27import { useCounter } from "./useCounter";28describe("useCounter", () => {29 it("should increase the counter", () => {30 const { result } = renderHook(() => useCounter());31 act(() => {32 result.current.increment();33 });34 expect(result.current.count).toBe(1);35 });36});37import { useState, useEffect } from "react";38export const useCounter = () => {39 const [count, setCount] = useState(0);40 useEffect(() => {41 console.log("useEffect called");42 return () => {43 console.log("useEffect cleanup called");44 };45 }, [count]);46 return {47 increment: () => setCount(count + 1),48 decrement: () => setCount(count - 1),49 };50};51import { renderHook, act } from "@testing-library/react-hooks";52import { useCounter } from "./useCounter";53describe("useCounter", () => {54 it("should increase the counter", () => {55 const { result } = renderHook(() => useCounter());56 act(() => {
Using AI Code Generation
1import { render, screen } from '@testing-library/react';2import userEvent from '@testing-library/user-event';3import { useCounter } from './useCounter';4test('counter test', () => {5 const { result, removeCleanup } = renderHook(() => useCounter());6 expect(result.current.count).toBe(0);7 act(() => {8 result.current.increment();9 });10 expect(result.current.count).toBe(1);11 removeCleanup();12});13import { useEffect, useState } from 'react';14export const useCounter = () => {15 const [count, setCount] = useState(0);16 useEffect(() => {17 const id = setInterval(() => {18 setCount((prevCount) => prevCount + 1);19 }, 1000);20 return () => clearInterval(id);21 }, []);22 const increment = () => setCount((prevCount) => prevCount + 1);23 return { count, increment };24};25import { useCounter } from './useCounter';26import { renderHook, act } from '@testing-library/react-hooks';27test('counter test', () => {28 const { result } = renderHook(() => useCounter());29 expect(result.current.count).toBe(0);30 act(() => {31 result.current.increment();32 });33 expect(result.current.count).toBe(1);34});35import { useEffect, useState } from 'react';36export const useCounter = () => {37 const [count, setCount] = useState(0);38 useEffect(() => {39 const id = setInterval(() => {40 setCount((prevCount) => prevCount + 1);41 }, 1000);42 return () => clearInterval(id);43 }, []);44 const increment = () => setCount((prevCount) => prevCount + 1);45 return { count, increment };46};47import { useCounter } from './useCounter';48import { renderHook, act } from '@testing-library/react-hooks';49test('counter test', () => {50 const { result } = renderHook(() => useCounter());51 expect(result.current.count).toBe(0);52 act(() => {53 result.current.increment();54 });55 expect(result.current.count).toBe(1);56});57import { useEffect, useState } from 'react';
Using AI Code Generation
1import { renderHook } from '@testing-library/react-hooks';2import { useCustomHook } from './customHook';3describe('useCustomHook', () => {4 it('should remove cleanup method', () => {5 const { removeCleanup } = renderHook(() => useCustomHook());6 removeCleanup();7 });8});9import { useEffect } from 'react';10export const useCustomHook = () => {11 useEffect(() => {12 return () => {13 console.log('cleanup');14 };15 });16};17 √ should remove cleanup method (4ms)
Using AI Code Generation
1import { renderHook } from '@testing-library/react-hooks';2import { useCounter } from './useCounter';3describe('useCounter', () => {4 it('should increment counter by 1', () => {5 const { result } = renderHook(() => useCounter());6 result.current.increment();7 expect(result.current.count).toBe(1);8 });9 it('should decrement counter by 1', () => {10 const { result } = renderHook(() => useCounter());11 result.current.decrement();12 expect(result.current.count).toBe(-1);13 });14});15import { useState } from 'react';16import { act } from 'react-dom/test-utils';17export const useCounter = () => {18 const [count, setCount] = useState(0);19 const increment = () => setCount(count + 1);20 const decrement = () => setCount(count - 1);21 return {22 };23};24import { renderHook } from '@testing-library/react-hooks';25import { useCounter } from './useCounter';26describe('useCounter', () => {27 it('should increment counter by 1', () => {28 const { result, removeCleanup } = renderHook(() => useCounter());29 result.current.increment();30 removeCleanup();31 expect(result.current.count).toBe(1);32 });33 it('should decrement counter by 1', () => {34 const { result, removeCleanup } = renderHook(() => useCounter());35 result.current.decrement();36 removeCleanup();37 expect(result.current.count).toBe(-1);38 });39});40import { useState } from 'react';41import { act } from 'react-dom/test-utils';42export const useCounter = () => {43 const [count, setCount] = useState(0);44 const increment = () => setCount(count + 1);45 const decrement = () =>
Using AI Code Generation
1import { renderHook, cleanup } from "@testing-library/react-hooks";2import { useCounter } from "./useCounter";3afterEach(() => {4 cleanup();5});6test("should increment counter", () => {7 const { result } = renderHook(() => useCounter());8 expect(result.current.count).toBe(0);9 result.current.increment();10 expect(result.current.count).toBe(1);11});12import { useState, useCallback } from "react";13export const useCounter = () => {14 const [count, setCount] = useState(0);15 const increment = useCallback(() => {16 setCount((count) => count + 1);17 }, []);18 return { count, increment };19};20import { renderHook, cleanup } from "@testing-library/react-hooks";21import { useCounter } from "./useCounter";22afterEach(() => {23 cleanup();24});25test("should increment counter", () => {26 const { result } = renderHook(() => useCounter());27 expect(result.current.count).toBe(0);28 result.current.increment();29 expect(result.current.count).toBe(1);30});31import { renderHook, cleanup } from "@testing-library/react-hooks";32import { useCounter } from "./useCounter";33afterEach(() => {34 cleanup();35});36test("should increment counter", () => {37 const { result } = renderHook(() => useCounter());38 expect(result.current.count).toBe(0);39 result.current.increment();40 expect(result.current.count).toBe(1);41});
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks'2import useCounter from './useCounter'3test('should increment counter', () => {4 const { result, unmount } = renderHook(() => useCounter())5 act(() => {6 result.current.increment()7 })8 expect(result.current.count).toBe(1)9 unmount()10})11import { useState, useEffect } from 'react'12export default function useCounter() {13 const [count, setCount] = useState(0)14 const increment = () => setCount(count + 1)15 useEffect(() => {16 const id = setInterval(() => {17 setCount(count => count + 1)18 }, 1000)19 return () => clearInterval(id)20 }, [])21 return { count, increment }22}23import { renderHook, act } from '@testing-library/react-hooks'24import useCounter from './useCounter'25test('should increment counter', () => {26 const { result } = renderHook(() => useCounter())27 act(() => {28 result.current.increment()29 })30 expect(result.current.count).toBe(1)31})32import { useState, useEffect } from 'react'33export default function useCounter() {34 const [count, setCount] = useState(0)35 const increment = () => setCount(count + 1)36 useEffect(() => {37 const id = setInterval(() => {38 setCount(count => count + 1)39 }, 1000)40 return () => clearInterval(id)41 }, [])42 return { count, increment }43}44import { renderHook, act } from '@testing-library/react-hooks'45import useCounter from './useCounter'46test('should increment counter', () => {47 const { result } = renderHook(() => useCounter())48 act(() => {49 result.current.increment()50 })51 expect(result.current.count).toBe(1)52})53import { useState, useEffect }
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