64 lines
2.5 KiB
Markdown
64 lines
2.5 KiB
Markdown
|
---
|
||
|
id: 587d824b367417b2b2512c49
|
||
|
challengeType: 2
|
||
|
videoUrl: ''
|
||
|
localeTitle: 测试真实性
|
||
|
---
|
||
|
|
||
|
## Description
|
||
|
<section id='description'>
|
||
|
请注意,本项目在 <a href="https://repl.it/github/freeCodeCamp/boilerplate-mochachai">这个 Repl.it 项目</a> 的基础上进行开发。你也可以从 <a href='https://repl.it/github/freeCodeCamp/boilerplate-mochachai'>GitHub</a> 上克隆。
|
||
|
|
||
|
<code>isTrue()</code> 仅当给出的值为 Boolean 的 <code>true</code> 时可以通过测试;<code>isNotTrue()</code> 则会在给出除 <code>true</code> 以外的值时通过测试。
|
||
|
|
||
|
```js
|
||
|
assert.isTrue(true, '可以通过,因为值的类型是布尔且值为 true');
|
||
|
assert.isTrue('true', '不能通过,因为值的类型是字符串);
|
||
|
assert.isTrue(1, '不过能通过,因为值是数字 1');
|
||
|
```
|
||
|
|
||
|
|
||
|
<code>isFalse()</code> 和 <code>isNotFalse()</code> 同样存在,表现与上面提到的两个方法类似。
|
||
|
</section>
|
||
|
|
||
|
## Instructions
|
||
|
<section id='instructions'>
|
||
|
使用 <code>assert.isTrue()</code> 或 <code>assert.isNotTrue()</code> 让测试通过。
|
||
|
</section>
|
||
|
|
||
|
## Tests
|
||
|
<section id='tests'>
|
||
|
|
||
|
```yml
|
||
|
tests:
|
||
|
- text: 不应有未通过的测试
|
||
|
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => {assert.equal(data.state,'passed'); }, xhr => { throw new Error(xhr.responseText); })
|
||
|
- text: 请选择正确的断言—isTrue 或 isNotTrue
|
||
|
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => { assert.equal(data.assertions[0].method, 'isTrue', 'True is true'); }, xhr => { throw new Error(xhr.responseText); })
|
||
|
- text: 请选择正确的断言—isTrue 或 isNotTrue
|
||
|
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => { assert.equal(data.assertions[1].method, 'isTrue', 'Double negation of a truthy value is true'); }, xhr => { throw new Error(xhr.responseText); })
|
||
|
- text: 请选择正确的断言—isTrue 或 isNotTrue
|
||
|
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => { assert.equal(data.assertions[2].method, 'isNotTrue', 'A truthy object is not true - neither is a false one'); }, xhr => { throw new Error(xhr.responseText); })
|
||
|
|
||
|
```
|
||
|
|
||
|
</section>
|
||
|
|
||
|
## Challenge Seed
|
||
|
<section id='challengeSeed'>
|
||
|
|
||
|
</section>
|
||
|
|
||
|
## Solution
|
||
|
<section id='solution'>
|
||
|
|
||
|
```js
|
||
|
/**
|
||
|
Backend challenges don't need solutions,
|
||
|
because they would need to be tested against a full working project.
|
||
|
Please check our contributing guidelines to learn more.
|
||
|
*/
|
||
|
```
|
||
|
|
||
|
</section>
|