freeCodeCamp/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-and-testi.../compare-the-properties-of-t...

110 lines
2.7 KiB
Markdown

---
id: 587d824c367417b2b2512c4d
title: Compare the Properties of Two Elements
challengeType: 2
forumTopicId: 301588
dashedName: compare-the-properties-of-two-elements
---
# --description--
As a reminder, this project is being built upon the following starter project on [Repl.it](https://repl.it/github/freeCodeCamp/boilerplate-mochachai), or cloned from [GitHub](https://github.com/freeCodeCamp/boilerplate-mochachai/).
# --instructions--
Within `tests/1_unit-tests.js` under the test labelled `#8` in the `Comparisons` suite, change each `assert` to either `assert.isAbove` or `assert.isAtMost` to make the test pass (should evaluate to `true`). Do not alter the arguments passed to the asserts.
# --hints--
All tests should pass.
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=7').then(
(data) => {
assert.equal(data.state, 'passed');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
You should choose the correct method for the first assertion - `isAbove` vs. `isAtMost`.
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=7').then(
(data) => {
assert.equal(
data.assertions[0].method,
'isAtMost',
'5 is at most (<=) 5'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
You should choose the correct method for the second assertion - `isAbove` vs. `isAtMost`.
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=7').then(
(data) => {
assert.equal(data.assertions[1].method, 'isAbove', '1 is greater than 0');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
You should choose the correct method for the third assertion - `isAbove` vs. `isAtMost`.
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=7').then(
(data) => {
assert.equal(
data.assertions[2].method,
'isAbove',
'Math.PI = 3.14159265 is greater than 3'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
You should choose the correct method for the fourth assertion - `isAbove` vs. `isAtMost`.
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=7').then(
(data) => {
assert.equal(
data.assertions[3].method,
'isAtMost',
'1 - Math.random() is > 0 and <= 1. It is atMost 1 !'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
# --solutions--
```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.
*/
```