2.5 KiB
2.5 KiB
id, challengeType, videoUrl, title
id | challengeType | videoUrl | title |
---|---|---|---|
587d824b367417b2b2512c49 | 2 | 测试真实性 |
Description
isTrue()
仅当给出的值为 Boolean 的 true
时可以通过测试;isNotTrue()
则会在给出除 true
以外的值时通过测试。
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');
isFalse()
和 isNotFalse()
同样存在,表现与上面提到的两个方法类似。
Instructions
assert.isTrue()
或 assert.isNotTrue()
让测试通过。
Tests
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); })
Challenge Seed
Solution
/**
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.
*/