Code change:
"assert.strictEqual(Enzyme.mount(React.createElement(MagicEightBall)).children().childAt(2).name(), 'button', 'message: <code>MagicEightBall</code>&apos;s third child should be a <code>button</code> element.');", "assert(Enzyme.mount(React.createElement(MagicEightBall)).state('randomIndex') === '' && Enzyme.mount(React.createElement(MagicEightBall)).state('userInput') === '', 'message: <code>MagicEightBall</code>&apos;s state should be initialized with a property of <code>userInput</code> and a property of <code>randomIndex</code> both set to a value of an empty string.');", "assert(Enzyme.mount(React.createElement(MagicEightBall)).find('p').length === 1 && Enzyme.mount(React.createElement(MagicEightBall)).find('p').text() === '', 'message: When <code>MagicEightBall</code> is first mounted to the DOM, it should return an empty <code>p</code> element.');", <del> "async () => { const waitForIt = (fn) => new Promise((resolve, reject) => setTimeout(() => resolve(fn()), 250)); const comp = Enzyme.mount(React.createElement(MagicEightBall)); const simulate = () => { comp.find('input').simulate('change', { target: { value: 'test?' }}); comp.find('button').simulate('click'); }; const result = () => comp.find('p').text(); const _1 = () => { simulate(); return waitForIt(() => result()) }; const _2 = () => { simulate(); return waitForIt(() => result()) }; const _3 = () => { simulate(); return waitForIt(() => result()) }; const _4 = () => { simulate(); return waitForIt(() => result()) }; const _5 = () => { simulate(); return waitForIt(() => result()) }; const _6 = () => { simulate(); return waitForIt(() => result()) }; const _7 = () => { simulate(); return waitForIt(() => result()) }; const _8 = () => { simulate(); return waitForIt(() => result()) }; const _9 = () => { simulate(); return waitForIt(() => result()) }; const _10 = () => { simulate(); return waitForIt(() => result()) }; const _1_val = await _1(); const _2_val = await _2(); const _3_val = await _3(); const _4_val = await _4(); const _5_val = await _5(); const _6_val = await _6(); const _7_val = await _7(); const _8_val = await _8(); const _9_val = await _9(); const _10_val = await _10(); const actualAnswers = [_1_val, _2_val, _3_val, _4_val, _5_val, _6_val, _7_val, _8_val, _9_val, _10_val]; const hasIndex = actualAnswers.filter((answer, i) => possibleAnswers.indexOf(answer) !== -1); const notAllEqual = new Set(actualAnswers); assert(notAllEqual.size > 1 && hasIndex.length === 10, 'message: When text is entered into the <code>input</code> element and the button is clicked, the <code>MagicEightBall</code> component should return a <code>p</code> element that contains a random element from the <code>possibleAnswers</code> array.'); " </del> <ins> "async () => { const waitForIt = (fn) => new Promise((resolve, reject) => setTimeout(() => resolve(fn()), 250)); const comp = Enzyme.mount(React.createElement(MagicEightBall)); const simulate = () => { comp.find('input').simulate('change', { target: { value: 'test?' }}); comp.find('button').simulate('click'); }; const result = () => comp.find('p').text(); const _1 = () => { simulate(); return waitForIt(() => result()) }; const _2 = () => { simulate(); return waitForIt(() => result()) }; const _3 = () => { simulate(); return waitForIt(() => result()) }; const _4 = () => { simulate(); return waitForIt(() => result()) }; const _5 = () => { simulate(); return waitForIt(() => result()) }; const _6 = () => { simulate(); return waitForIt(() => result()) }; const _7 = () => { simulate(); return waitForIt(() => result()) }; const _8 = () => { simulate(); return waitForIt(() => result()) }; const _9 = () => { simulate(); return waitForIt(() => result()) }; const _10 = () => { simulate(); return waitForIt(() => result()) }; const _1_val = await _1(); const _2_val = await _2(); const _3_val = await _3(); const _4_val = await _4(); const _5_val = await _5(); const _6_val = await _6(); const _7_val = await _7(); const _8_val = await _8(); const _9_val = await _9(); const _10_val = await _10(); const actualAnswers = [_1_val, _2_val, _3_val, _4_val, _5_val, _6_val, _7_val, _8_val, _9_val, _10_val]; const hasIndex = actualAnswers.filter((answer, i) => possibleAnswers.indexOf(answer) !== -1); const notAllEqual = new Set(actualAnswers); assert(notAllEqual.size > 1 && hasIndex.length === 10, 'message: When text is entered into the <code>input</code> element and the button is clicked, the <code>MagicEightBall</code> component should return a <code>p</code> element that contains a random element from the <code>possibleAnswers</code> array.');}" </ins> ], "solutions": [ "nconst inputStyle = {n  width: 235,n  margin: 5n}nnclass MagicEightBall extends React.Component {n  constructor(props) {n    super(props);n    this.state = {n      userInput: '',n      randomIndex: ''n    }n    this.ask = this.ask.bind(this);n    this.handleChange = this.handleChange.bind(this);n  }n  ask() {n    if (this.state.userInput) {n      this.setState({n        randomIndex: Math.floor(Math.random() * 20),n        userInput: ''n      });n    }n  }n  handleChange(event) {n    this.setState({n      userInput: event.target.valuen    });n  }n  render() {n    const possibleAnswers = [n      "It is certain", "It is decidedly so", "Without a doubt",n      "Yes, definitely", "You may rely on it", "As I see it, yes",n      "Outlook good", "Yes", "Signs point to yes", "Reply hazy try again",n      "Ask again later", "Better not tell you now", "Cannot predict now",n      "Concentrate and ask again", "Don't count on it", "My reply is no",n      "My sources say no", "Outlook not so good","Very doubtful", "Most likely"n    ];n    const answer = possibleAnswers[this.state.randomIndex];n    return (n      <div>n        <inputn          type="text"n          value={this.state.userInput}n          onChange={this.handleChange}n          style={inputStyle} /><br />n        <button onClick={this.ask}>Ask the Magic Eight Ball!</button><br />n        <h3>Answer:</h3>n        <p>n          {answer}n        </p>n      </div>n    );n  }n};"

Related discussion:
text: Same with this challenge: Browser User Agent String: Mozilla/5.0 (Macintosh; Intel Mac OS X ) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.1 Safari/605.1.15
You used the solution shows above? If so, can you confirm this? I just tested this on production and seems to work fine (at least in Chrome, Edge, and Firefox).
safari is not passing with the code in the OP, firefox does pass. It only fails the last test
Any guess why?
I'm not sure what's happening here, I tried taking a closer look at the last test (the one that always fails). And when logging the info used in the assert, it looks like it should pass.... ! ! The two conditions in the assert are true, and it still fails. The test is complex and difficult to pinpoint what the problem is, or why it only seems to be failing in safari. By lowering the timeout at the beginning of the test from 250ms to 50ms it will pass some of the time, but still fail sometimes as well. I don't know, that's where I'm at.