KaneAI - World’s First E2E Software Testing Agent.Book a Demo 
How to use componentDidMount method in cavy
Best JavaScript code snippet using cavy
lifecycle.test.js
Source:lifecycle.test.js 
...204 }205 }206 class LifecycleTestComponent extends Component {207 componentWillMount() {}208 componentDidMount() {}209 componentWillUnmount() {}210 render() {211 return <div />;212 }213 }214 class Inner extends LifecycleTestComponent {215 render() {216 return (217 <div>218 <InnerMost />219 </div>220 );221 }222 }223 class InnerMost extends LifecycleTestComponent {224 render() {225 return <div />;226 }227 }228 let spies = [229 'componentWillMount',230 'componentDidMount',231 'componentWillUnmount'232 ];233 let verifyLifecycleMethods = TestComponent => {234 let proto = TestComponent.prototype;235 spies.forEach(s => sinon.spy(proto, s));236 let reset = () => spies.forEach(s => proto[s].resetHistory());237 it('should be invoked for components on initial render', () => {238 reset();239 render(<Outer />, scratch);240 expect(proto.componentDidMount).to.have.been.called;241 expect(proto.componentWillMount).to.have.been.calledBefore(242 proto.componentDidMount243 );244 expect(proto.componentDidMount).to.have.been.called;245 });246 it('should be invoked for components on unmount', () => {247 reset();248 setState({ show: false });249 rerender();250 expect(proto.componentWillUnmount).to.have.been.called;251 });252 it('should be invoked for components on re-render', () => {253 reset();254 setState({ show: true });255 rerender();256 expect(proto.componentDidMount).to.have.been.called;257 expect(proto.componentWillMount).to.have.been.calledBefore(258 proto.componentDidMount259 );260 expect(proto.componentDidMount).to.have.been.called;261 });262 };263 describe('inner components', () => {264 verifyLifecycleMethods(Inner);265 });266 describe('innermost components', () => {267 verifyLifecycleMethods(InnerMost);268 });269 describe('when shouldComponentUpdate() returns false', () => {270 let setState;271 class Outer extends Component {272 constructor() {273 super();274 this.state = { show: true };275 setState = s => this.setState(s);276 }277 render(props, { show }) {278 return (279 <div>280 {show && (281 <div>282 <Inner {...props} />283 </div>284 )}285 </div>286 );287 }288 }289 class Inner extends Component {290 shouldComponentUpdate() {291 return false;292 }293 componentWillMount() {}294 componentDidMount() {}295 componentWillUnmount() {}296 render() {297 return <div />;298 }299 }300 let proto = Inner.prototype;301 let spies = [302 'componentWillMount',303 'componentDidMount',304 'componentWillUnmount'305 ];306 spies.forEach(s => sinon.spy(proto, s));307 let reset = () => spies.forEach(s => proto[s].resetHistory());308 beforeEach(() => reset());309 it('should be invoke normally on initial mount', () => {310 render(<Outer />, scratch);311 expect(proto.componentWillMount).to.have.been.called;312 expect(proto.componentWillMount).to.have.been.calledBefore(313 proto.componentDidMount314 );315 expect(proto.componentDidMount).to.have.been.called;316 });317 it('should be invoked normally on unmount', () => {318 setState({ show: false });319 rerender();320 expect(proto.componentWillUnmount).to.have.been.called;321 });322 it('should still invoke mount for shouldComponentUpdate():false', () => {323 setState({ show: true });324 rerender();325 expect(proto.componentWillMount).to.have.been.called;326 expect(proto.componentWillMount).to.have.been.calledBefore(327 proto.componentDidMount328 );329 expect(proto.componentDidMount).to.have.been.called;330 });331 it('should still invoke unmount for shouldComponentUpdate():false', () => {332 setState({ show: false });333 rerender();334 expect(proto.componentWillUnmount).to.have.been.called;335 });336 });337 });338 describe('#setState', () => {339 // From preactjs/preact#1170340 it('should NOT mutate state, only create new versions', () => {341 const stateConstant = {};342 let didMount = false;343 let componentState;344 class Stateful extends Component {345 constructor() {346 super(...arguments);347 this.state = stateConstant;348 }349 componentDidMount() {350 didMount = true;351 // eslint-disable-next-line react/no-did-mount-set-state352 this.setState({ key: 'value' }, () => {353 componentState = this.state;354 });355 }356 render() {357 return <div />;358 }359 }360 render(<Stateful />, scratch);361 rerender();362 expect(didMount).to.equal(true);363 expect(componentState).to.deep.equal({ key: 'value' });364 expect(stateConstant).to.deep.equal({});365 });366 // This feature is not mentioned in the docs, but is part of the release367 // notes for react v16.0.0: https://reactjs.org/blog/2017/09/26/react-v16.0.html#breaking-changes368 it('should abort if updater function returns null', () => {369 let updateState;370 class Foo extends Component {371 constructor() {372 super();373 this.state = { value: 0 };374 updateState = () =>375 this.setState(prev => {376 prev.value++;377 return null;378 });379 }380 render() {381 return 'value: ' + this.state.value;382 }383 }384 let renderSpy = sinon.spy(Foo.prototype, 'render');385 render(<Foo />, scratch);386 renderSpy.resetHistory();387 updateState();388 rerender();389 expect(renderSpy).to.not.be.called;390 });391 it('should call callback with correct this binding', () => {392 let inst;393 let updateState;394 class Foo extends Component {395 constructor() {396 super();397 updateState = () => this.setState({}, this.onUpdate);398 }399 onUpdate() {400 inst = this;401 }402 }403 render(<Foo />, scratch);404 updateState();405 rerender();406 expect(inst).to.be.instanceOf(Foo);407 });408 });409 describe('Lifecycle DOM Timing', () => {410 it('should be invoked when dom does (DidMount, WillUnmount) or does not (WillMount, DidUnmount) exist', () => {411 let setState;412 class Outer extends Component {413 constructor() {414 super();415 this.state = { show: true };416 setState = s => {417 this.setState(s);418 this.forceUpdate();419 };420 }421 componentWillMount() {422 expect(423 document.getElementById('OuterDiv'),424 'Outer componentWillMount'425 ).to.not.exist;426 }427 componentDidMount() {428 expect(document.getElementById('OuterDiv'), 'Outer componentDidMount')429 .to.exist;430 }431 componentWillUnmount() {432 expect(433 document.getElementById('OuterDiv'),434 'Outer componentWillUnmount'435 ).to.exist;436 setTimeout(() => {437 expect(438 document.getElementById('OuterDiv'),439 'Outer after componentWillUnmount'440 ).to.not.exist;441 }, 0);442 }443 render(props, { show }) {444 return (445 <div id="OuterDiv">446 {show && (447 <div>448 <Inner {...props} />449 </div>450 )}451 </div>452 );453 }454 }455 class Inner extends Component {456 componentWillMount() {457 expect(458 document.getElementById('InnerDiv'),459 'Inner componentWillMount'460 ).to.not.exist;461 }462 componentDidMount() {463 expect(document.getElementById('InnerDiv'), 'Inner componentDidMount')464 .to.exist;465 }466 componentWillUnmount() {467 // @TODO Component mounted into elements (non-components)468 // are currently unmounted after those elements, so their469 // DOM is unmounted prior to the method being called.470 //expect(document.getElementById('InnerDiv'), 'Inner componentWillUnmount').to.exist;471 setTimeout(() => {472 expect(473 document.getElementById('InnerDiv'),474 'Inner after componentWillUnmount'475 ).to.not.exist;476 }, 0);...
autoSubscriber.spec.js
Source:autoSubscriber.spec.js
...17 return ()=>{18 unsubscribeCalled++;19 };20 }21 componentDidMount() {22 didMountCalled = true;23 }24 componentDidUpdate() {25 didUpdateCalled = true;26 }27 componentWillUnmount() {28 willUnmountCalled = true;29 }30 });31 const subscriber = new Subscriber();32 subscriber.componentDidMount();33 subscriber.componentDidUpdate();34 subscriber.componentDidUpdate();35 subscriber.componentDidUpdate();36 subscriber.componentDidUpdate();37 subscriber.componentWillUnmount();38 assert.equal(didMountCalled, true, "componentDidMount called");39 assert.equal(didUpdateCalled, true, "componentDidUpdate called");40 assert.equal(willUnmountCalled, true, "componentWillUnmount called");41 assert.equal(getSubsCalled, 5, "getSubs called on componentDidMount and each componentDidUpdate");42 assert.equal(subscribeCalled, 1, "subscribe called only on getSubs changes");43 assert.equal(unsubscribeCalled, 1, "unsubscribe called on componentWillUnmount");44 assert.end();45});46test('createAutoSubscriber component test', (assert) => {47 var getSubsCalled = 0;48 var subscribeCalled = 0;49 var unsubscribeCalled = 0;50 var didMountCalled = false;51 var didUpdateCalled = false;52 var willUnmountCalled = false;53 function getSubs(props, state) {54 getSubsCalled++;55 return {subKey: "subKey1", asValue: true};56 }57 function subscribeSubs(subs, props, state) {58 subscribeCalled++;59 return ()=>{60 unsubscribeCalled++;61 };62 }63 const Subscriber = createAutoSubscriber({getSubs, subscribeSubs})(class {64 getSubs() {65 //shouldn't be called66 }67 subscribeSubs() {68 //shouldn't be called69 }70 componentDidMount() {71 didMountCalled = true;72 }73 componentDidUpdate() {74 didUpdateCalled = true;75 }76 componentWillUnmount() {77 willUnmountCalled = true;78 }79 });80 const subscriber = new Subscriber();81 subscriber.componentDidMount();82 subscriber.componentDidUpdate();83 subscriber.componentDidUpdate();84 subscriber.componentDidUpdate();85 subscriber.componentDidUpdate();86 subscriber.componentWillUnmount();87 assert.equal(didMountCalled, true, "componentDidMount called");88 assert.equal(didUpdateCalled, true, "componentDidUpdate called");89 assert.equal(willUnmountCalled, true, "componentWillUnmount called");90 assert.equal(getSubsCalled, 5, "getSubs called on componentDidMount and each componentDidUpdate");91 assert.equal(subscribeCalled, 1, "subscribe called only on getSubs changes");92 assert.equal(unsubscribeCalled, 1, "unsubscribe called on componentWillUnmount");93 assert.end();94});95test('autoSubscriber component updates subscriptions on getSubs changes', (assert) => {96 var getSubsCalled = 0;97 var subscribeCalled = 0;98 var unsubscribeCalled = 0;99 var didMountCalled = false;100 var didUpdateCalled = false;101 var willUnmountCalled = false;102 const Subscriber = autoSubscriber(class {103 static getSubs(props, state) {104 getSubsCalled++;105 return {subKey: "subKey"+(getSubsCalled), asValue: true};106 }107 static subscribeSubs(subs, props, state) {108 subscribeCalled++;109 return ()=>{110 unsubscribeCalled++;111 };112 }113 componentDidMount() {114 didMountCalled = true;115 }116 componentDidUpdate() {117 didUpdateCalled = true;118 }119 componentWillUnmount() {120 willUnmountCalled = true;121 }122 });123 const subscriber = new Subscriber();124 subscriber.componentDidMount();125 subscriber.componentDidUpdate();126 subscriber.componentDidUpdate();127 subscriber.componentWillUnmount();128 assert.equal(didMountCalled, true, "componentDidMount called");129 assert.equal(didUpdateCalled, true, "componentDidUpdate called");130 assert.equal(willUnmountCalled, true, "componentWillUnmount called");131 assert.equal(getSubsCalled, 3, "getSubs called on componentDidMount and each componentDidUpdate");132 assert.equal(subscribeCalled, 3, "subscribe called only on getSubs changes");133 assert.equal(unsubscribeCalled, 3, "unsubscribe called on componentWillUnmount");134 assert.end();135});136test('autoSubscriber handles subscribeSubs that returns a promise and keeps track of fetching state', (assert) => {137 var getSubsCalled = 0;138 var subscribeCalled = 0;139 var unsubscribeCalled = 0;140 let setStateCalledWithFetchingTrue = false;141 const Subscriber = autoSubscriber(class {142 static getSubs(props, state) {143 getSubsCalled++;144 return {subKey: "subKey"+(getSubsCalled), asValue: true};145 }146 static subscribeSubs(subs, props, state) {147 subscribeCalled++;148 return {149 unsubscribe: ()=>{150 unsubscribeCalled++;151 },152 promise: new Promise((resolve, reject) => { resolve(); })153 };154 }155 componentDidMount() {156 }157 componentDidUpdate() {158 }159 componentWillUnmount() {160 }161 setState(state, done) {162 if (state._autoSubscriberFetching) {163 setStateCalledWithFetchingTrue = true;164 } else if (state._autoSubscriberFetching === false) {165 assert.end();166 }167 done && done();168 }169 });170 const subscriber = new Subscriber();171 subscriber.componentDidMount();172 assert.equal(getSubsCalled, 1, "getSubs called on componentDidMount");173 assert.equal(setStateCalledWithFetchingTrue, true, "setState called with autoSubscriberFetching=true");174});175test('autoSubscriber keeps track of fetching error', (assert) => {176 var getSubsCalled = 0;177 var subscribeCalled = 0;178 var unsubscribeCalled = 0;179 const Subscriber = autoSubscriber(class {180 static getSubs(props, state) {181 getSubsCalled++;182 return {subKey: "subKey"+(getSubsCalled), asValue: true};183 }184 static subscribeSubs(subs, props, state) {185 subscribeCalled++;186 return {187 unsubscribe: ()=>{188 unsubscribeCalled++;189 },190 promise: new Promise((resolve, reject) => { reject('fetch error'); })191 };192 }193 componentDidMount() {194 }195 componentDidUpdate() {196 }197 componentWillUnmount() {198 }199 setState(state, done) {200 if (state._autoSubscriberError === 'fetch error') {201 assert.end();202 }203 done && done();204 }205 });206 const subscriber = new Subscriber();207 subscriber.componentDidMount();208 assert.equal(getSubsCalled, 1, "getSubs called on componentDidMount");209});210test('autoSubscriber doesn\'t trash super\'s state', (assert) => {211 var getSubsCalled = 0;212 var subscribeCalled = 0;213 var unsubscribeCalled = 0;214 const Subscriber = autoSubscriber(class {215 static getSubs(props, state) {216 getSubsCalled++;217 return {subKey: "subKey"+(getSubsCalled), asValue: true};218 }219 static subscribeSubs(subs, props, state) {220 subscribeCalled++;221 return {222 unsubscribe: ()=>{223 unsubscribeCalled++;224 },225 promise: new Promise((resolve, reject) => { resolve(); })226 };227 }228 constructor(props) {229 this.state = {230 userState: 1231 }232 }233 componentDidMount() {234 }235 componentDidUpdate() {236 }237 componentWillUnmount() {238 }239 setState(state, done) {240 }241 });242 const subscriber = new Subscriber();243 subscriber.componentDidMount();244 assert.equal(getSubsCalled, 1, "getSubs called on componentDidMount");245 assert.equal(subscriber.state.userState, 1, "user state is kept");246 assert.end();247});248test('autoSubscriber component works with missing methods', (assert) => {249 var didMountCalled = false;250 var didUpdateCalled = false;251 var willUnmountCalled = false;252 const Subscriber = autoSubscriber(class {253 componentDidMount() {254 didMountCalled = true;255 }256 componentDidUpdate() {257 didUpdateCalled = true;258 }259 componentWillUnmount() {260 willUnmountCalled = true;261 }262 });263 const subscriber = new Subscriber();264 subscriber.componentDidMount();265 subscriber.componentDidUpdate();266 subscriber.componentWillUnmount();267 assert.end();...
no-did-mount-set-state.js
Source:no-did-mount-set-state.js
...39 },40 {41 code: `42 class Hello extends React.Component {43 componentDidMount() {44 this.setState({45 data: data46 });47 }48 }49 `,50 errors: [51 {52 messageId: 'noSetState',53 data: { name: 'componentDidMount' },54 },55 ],56 },57 {58 code: `59 class Hello extends React.Component {60 componentDidMount = () => {61 this.setState({62 data: data63 });64 }65 }66 `,67 features: ['class fields', 'no-ts-old'], // TODO: FIXME: remove no-ts-old and fix68 errors: [69 {70 messageId: 'noSetState',71 data: { name: 'componentDidMount' },72 },73 ],74 },75 {76 code: `77 var Hello = createReactClass({78 componentDidMount: function() {79 this.setState({80 data: data81 });82 }83 });84 `,85 options: ['disallow-in-func'],86 errors: [87 {88 messageId: 'noSetState',89 data: { name: 'componentDidMount' },90 },91 ],92 },93 {94 code: `95 class Hello extends React.Component {96 componentDidMount() {97 this.setState({98 data: data99 });100 }101 }102 `,103 options: ['disallow-in-func'],104 errors: [105 {106 messageId: 'noSetState',107 data: { name: 'componentDidMount' },108 },109 ],110 },111 {112 code: `113 var Hello = createReactClass({114 componentDidMount: function() {115 someClass.onSomeEvent(function(data) {116 this.setState({117 data: data118 });119 })120 }121 });122 `,123 options: ['disallow-in-func'],124 errors: [125 {126 messageId: 'noSetState',127 data: { name: 'componentDidMount' },128 },129 ],130 },131 {132 code: `133 class Hello extends React.Component {134 componentDidMount() {135 someClass.onSomeEvent(function(data) {136 this.setState({137 data: data138 });139 })140 }141 }142 `,143 options: ['disallow-in-func'],144 errors: [145 {146 messageId: 'noSetState',147 data: { name: 'componentDidMount' },148 },149 ],150 },151 {152 code: `153 var Hello = createReactClass({154 componentDidMount: function() {155 if (true) {156 this.setState({157 data: data158 });159 }160 }161 });162 `,163 errors: [164 {165 messageId: 'noSetState',166 data: { name: 'componentDidMount' },167 },168 ],169 },170 {171 code: `172 class Hello extends React.Component {173 componentDidMount() {174 if (true) {175 this.setState({176 data: data177 });178 }179 }180 }181 `,182 errors: [183 {184 messageId: 'noSetState',185 data: { name: 'componentDidMount' },186 },187 ],188 },189 {190 code: `191 var Hello = createReactClass({192 componentDidMount: function() {193 someClass.onSomeEvent((data) => this.setState({data: data}));194 }195 });196 `,197 options: ['disallow-in-func'],198 errors: [199 {200 messageId: 'noSetState',201 data: { name: 'componentDidMount' },202 },203 ],204 },205 {206 code: `207 class Hello extends React.Component {208 componentDidMount() {209 someClass.onSomeEvent((data) => this.setState({data: data}));210 }211 }212 `,213 options: ['disallow-in-func'],214 errors: [215 {216 messageId: 'noSetState',217 data: { name: 'componentDidMount' },218 },219 ],220 },221];222const ruleTester = new RuleTester({ parserOptions });...
AxiosComponentLoaderBasic.js
Source:AxiosComponentLoaderBasic.js
...12 static propTypes = {13 component: PropTypes.func.isRequired,14 requestURL: PropTypes.string.isRequired15 };16 componentDidMount() {17 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() <<<<<<<<<<<<<<');18 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > typeof props.requestURL: ', typeof this.props.requestURL);19 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > props.requestURL: ', this.props.requestURL);20 axios.get(decodeURI(this.props.requestURL))21 .then(response => {22 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > SUCCESS typeof: ', typeof response.data);23 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > SUCCESS data: ', response.data);24 this.setState({ data: response.data });25 })26 .catch(error => {27 if (error.response) {28 // The request was made and the server responded with a status code that falls out of the range of 2xx29 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > ERROR.response.data: ', error.response.data);30 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > ERROR.response.status: ', error.response.status);31 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > ERROR.response.headers: ', error.response.headers);32 } else {33 // Something happened in setting up the request that triggered an Error34 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > ERROR.message: ', error.message);35 }36 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > componentDidMount() > json > ERROR.config: ', error.config);37 });38 }39 render () {40 let Component = this.props.component;41 console.log('>>>>>>>>>>>>>>>> AxiosComponentLoaderBasic > render() > Component: ', this.props.component);42 return <Component content={ this.state.data } />;43 }44}...
index.test.js
Source:index.test.js
1import React from 'react';2import ReactDOM from 'react-dom';3import { configure, shallow } from 'enzyme';4import { expect } from 'chai';5import { spy, stub, useFakeTimers } from 'sinon'6import Adapter from 'enzyme-adapter-react-16';7configure({ adapter: new Adapter() });8import App from '../src/App';9import Timer from '../src/Timer';10describe('<App />', () => {11 var appWrapper12 it('calls componentDidMount and adds a Timer', () => {13 spy(App.prototype, 'componentDidMount');14 appWrapper = shallow(<App />);15 //component mounted correctly16 expect(App.prototype.componentDidMount.calledOnce, "componentDidMount was not called").to.equal(true);17 //expect there to be one child element of div.TimerGrid within App18 expect(appWrapper.children('.TimerGrid').length).to.equal(1)19 //expect this.state.timers to be an array equal to 120 expect(appWrapper.state().timerIDs.length).to.equal(1)21 appWrapper.unmount()22 });23});24describe('<Timer />', () => {25 var timerWrapper26 it('calls componentDidMount', () => {27 spy(Timer.prototype, 'componentDidMount');28 timerWrapper = shallow(<Timer />);29 //component mounted correctly30 expect(Timer.prototype.componentDidMount.calledOnce, "componentDidMount was not called").to.equal(true);31 timerWrapper.unmount()32 });33 it('calls componentWillUnmount', () => {34 spy(Timer.prototype, 'componentWillUnmount');35 timerWrapper = shallow(<Timer />);36 timerWrapper.unmount()37 expect(Timer.prototype.componentWillUnmount.calledOnce).to.equal(true);38 })...
componentDidMount.js
Source:componentDidMount.js
1import React, {Component} from 'react';2class ComponentDidMount extends Component {3 constructor (props) {4 console.log('constructor');5 super (props)6 // Inicializamos el state7 this.state = {scroll: 0}8 }9 componentWillMount () {10 console.log('ComponentWillMount');11 }12 componentDidMount () {13 console.log('ComponentDidMount');14 document.addEventListener('scroll', () => {15 this.setState({scroll: window.scrollY})16 })17 }18 19 render () {20 console.log('render');21 return (22 <div>23 <h4>Ciclo de montaje: componentDidMount</h4>24 <h3>Scroll: {this.state.scroll}</h3>25 <p>componentDidMount<br/>26 componentDidMount<br/>27 componentDidMount<br/>28 componentDidMount<br/>29 componentDidMount<br/>30 componentDidMount<br/>31 componentDidMount<br/>32 componentDidMount<br/>33 componentDidMount<br/>34 componentDidMount<br/>35 componentDidMount<br/>36 componentDidMount<br/>37 componentDidMount<br/>38 componentDidMount<br/>39 componentDidMount</p>40 </div>41 );42 }43}...
Using AI Code Generation
1import React from 'react';2import { Text, View, StyleSheet } from 'react-native';3import PropTypes from 'prop-types';4import { connect } from 'react-redux';5import { bindActionCreators } from 'redux';6import { actionCreators } from '../actions';7import { TestHookStore } from 'cavy';8const styles = StyleSheet.create({9 container: {10 },11});12class Test extends React.Component {13 componentDidMount() {14 this.props.actions.testAction();15 }16 render() {17 return (18 <View style={styles.container}>19 <Text ref={this.props.generateTestHook('Test.Text')}>20 {this.props.text}21 );22 }23}24Test.propTypes = {25};26function mapStateToProps(state) {27 return {28 };29}30function mapDispatchToProps(dispatch) {31 return {32 actions: bindActionCreators(actionCreators, dispatch),33 };34}35export default connect(mapStateToProps, mapDispatchToProps)(TestHookStore.enhance(Test));
Using AI Code Generation
1import React from 'react';2import { View, Text, Button } from 'react-native';3import { TestHookStore, wrap } from 'cavy';4const TestableButton = wrap(Button);5class Test extends React.Component {6 constructor(props) {7 super(props);8 this.testHookStore = new TestHookStore();9 }10 render() {11 return (12 <Text ref={this.props.generateTestHook('test.text')}>13 ref={this.props.generateTestHook('test.button')}14 );15 }16}17export default Test;18import Test from './test';19describe('Test', () => {20 it('should display the correct text', async () => {21 await this.props.screen.findByText('Hello World');22 });23 it('should display the correct button text', async () => {24 await this.props.screen.findByText('Press Me');25 });26 it('should display the correct button', async () => {27 await this.props.screen.findByTestId('test.button');28 });29});30import React from 'react';31import { AppRegistry } from 'react-native';32import { TestHookProvider } from 'cavy';33import Test from './test.js';34import TestSpec from './test.spec.js';35const App = () => (36 <TestHookProvider specs={[TestSpec]}>37);38AppRegistry.registerComponent('App', () => App);39{40 "scripts": {41 }42}43import { AppRegistry } from 'react-native';44import App from './index.js';45AppRegistry.registerComponent('App', () => App);46import { AppRegistry } from 'react-native';47import App from './index.js';48AppRegistry.registerComponent('App', () => App);
Using AI Code Generation
1import { TestHookStore } from 'cavy';2import { AppRegistry } from 'react-native';3const testHookStore = new TestHookStore();4class TestHookWrapper extends Component {5 render() {6 return (7 <App testHookStore={testHookStore} />8 );9 }10}11AppRegistry.registerComponent('TestHookWrapper', () => TestHookWrapper);12export default testHookStore;13import test from 'ava';14import spec from '../../specs/App.spec.js';15import TestHookStore from '../../test.js';16const testHookStore = new TestHookStore();17test.beforeEach(t => {18 t.context.wrapper = shallow(<App testHookStore={testHookStore} />);19});20spec(test, testHookStore);21#### `TestHookStore.getStore()`22#### `TestHookStore.clear()`23#### `TestHookStore.generateTestHook(testHook)`24#### `testHook(component, testHookStore, testID)`25### `withTestHook(component)`26[MIT](LICENSE)
Using AI Code Generation
1import React from 'react';2import { Text, View, StyleSheet, FlatList } from 'react-native';3import { TestHookStore } from 'cavy';4import { wrap } from 'cavy';5class Test extends React.Component {6 constructor(props) {7 super(props);8 this.state = {9 };10 }11 componentDidMount() {12 this.props.generateTestHook('Test');13 .then(response => response.json())14 .then(data => {15 this.setState({ data: data });16 });17 }18 render() {19 return (20 <View style={styles.container} {...this.props.hook('Test')}>21 data={this.state.data}22 keyExtractor={(item, index) => item.id}23 renderItem={({ item }) => (24 <View style={styles.item}>25 <Text style={styles.text}>{item.name}</Text>26 )}27 );28 }29}30const styles = StyleSheet.create({31 container: {32 },33 item: {34 },35 text: {36 },37});38export default wrap(Test, undefined, { store: TestHookStore });39import React from 'react';40import { AppRegistry } from 'react-native';41import Test from './test';42import { TestHookProvider } from 'cavy';43class App extends React.Component {44 render() {45 return (46 );47 }48}49AppRegistry.registerComponent('App', () => App);50import { TestHookStore } from 'cavy';51import { testHook, generateTestHook } from 'cavy';52import Test from './test';53const spec = (component) => {54 describe('Test', () => {55 beforeEach(() => {56 component = testHook('Test');57 });58 it('should render a FlatList', () => {59 expect(component.find('FlatList').length).toEqual(1);60 });61 });62};63export default spec;
Using AI Code Generation
1import React, { Component } from 'react';2import { View, Text, Button } from 'react-native';3import { hook, wrap } from 'cavy';4class MyButton extends Component {5 render() {6 return (7 ref={this.props.generateTestHook('My.Button')}8 onPress={this.props.onPress}9 );10 }11}12const WrappedButton = wrap(MyButton);13class MyComponent extends Component {14 state = {15 };16 incrementCount = () => {17 this.setState({ count: this.state.count + 1 });18 };19 render() {20 return (21 <Text ref={this.props.generateTestHook('My.Text')}>22 {this.state.count}23 ref={this.props.generateTestHook('My.WrappedButton')}24 onPress={this.incrementCount}25 );26 }27}28export default hook(MyComponent);
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run cavy automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
