94 lines
2.3 KiB
Markdown
94 lines
2.3 KiB
Markdown
|
---
|
||
|
|
id: 587d824e367417b2b2512c55
|
||
|
|
title: Test if an Object has a Property
|
||
|
|
challengeType: 2
|
||
|
|
forumTopicId: 301604
|
||
|
|
dashedName: test-if-an-object-has-a-property
|
||
|
|
---
|
||
|
|
|
||
|
|
# --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/).
|
||
|
|
|
||
|
|
`property` asserts that the actual object has a given property.
|
||
|
|
|
||
|
|
# --instructions--
|
||
|
|
|
||
|
|
Within `tests/1_unit-tests.js` under the test labelled `#16` in the `Objects` suite, change each `assert` to either `assert.property` or `assert.notProperty` 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=15').then(
|
||
|
|
(data) => {
|
||
|
|
assert.equal(data.state, 'passed');
|
||
|
|
},
|
||
|
|
(xhr) => {
|
||
|
|
throw new Error(xhr.responseText);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
```
|
||
|
|
|
||
|
|
You should choose the correct method for the first assertion - `property` vs. `notProperty`.
|
||
|
|
|
||
|
|
```js
|
||
|
|
(getUserInput) =>
|
||
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=15').then(
|
||
|
|
(data) => {
|
||
|
|
assert.equal(
|
||
|
|
data.assertions[0].method,
|
||
|
|
'notProperty',
|
||
|
|
'A car has not wings'
|
||
|
|
);
|
||
|
|
},
|
||
|
|
(xhr) => {
|
||
|
|
throw new Error(xhr.responseText);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
```
|
||
|
|
|
||
|
|
You should choose the correct method for the second assertion - `property` vs. `notProperty`.
|
||
|
|
|
||
|
|
```js
|
||
|
|
(getUserInput) =>
|
||
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=15').then(
|
||
|
|
(data) => {
|
||
|
|
assert.equal(
|
||
|
|
data.assertions[1].method,
|
||
|
|
'property',
|
||
|
|
'planes have engines'
|
||
|
|
);
|
||
|
|
},
|
||
|
|
(xhr) => {
|
||
|
|
throw new Error(xhr.responseText);
|
||
|
|
}
|
||
|
|
);
|
||
|
|
```
|
||
|
|
|
||
|
|
You should choose the correct method for the third assertion - `property` vs. `notProperty`.
|
||
|
|
|
||
|
|
```js
|
||
|
|
(getUserInput) =>
|
||
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=15').then(
|
||
|
|
(data) => {
|
||
|
|
assert.equal(data.assertions[2].method, 'property', 'Cars have wheels');
|
||
|
|
},
|
||
|
|
(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.
|
||
|
|
*/
|
||
|
|
```
|