112 lines
2.7 KiB
Markdown
112 lines
2.7 KiB
Markdown
---
|
|
id: 587d824b367417b2b2512c4a
|
|
title: Use the Double Equals to Assert Equality
|
|
challengeType: 2
|
|
forumTopicId: 301609
|
|
dashedName: use-the-double-equals-to-assert-equality
|
|
---
|
|
|
|
# --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/).
|
|
|
|
`equal()` compares objects using `==`.
|
|
|
|
# --instructions--
|
|
|
|
Within `tests/1_unit-tests.js` under the test labelled `#5` in the `Equality` suite, change each `assert` to either `assert.equal` or `assert.notEqual` 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=4').then(
|
|
(data) => {
|
|
assert.equal(data.state, 'passed');
|
|
},
|
|
(xhr) => {
|
|
throw new Error(xhr.responseText);
|
|
}
|
|
);
|
|
```
|
|
|
|
You should choose the correct method for the first assertion - `equal` vs. `notEqual`.
|
|
|
|
```js
|
|
(getUserInput) =>
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=4').then(
|
|
(data) => {
|
|
assert.equal(
|
|
data.assertions[0].method,
|
|
'equal',
|
|
'Numbers are coerced into strings with == '
|
|
);
|
|
},
|
|
(xhr) => {
|
|
throw new Error(xhr.responseText);
|
|
}
|
|
);
|
|
```
|
|
|
|
You should choose the correct method for the second assertion - `equal` vs. `notEqual`.
|
|
|
|
```js
|
|
(getUserInput) =>
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=4').then(
|
|
(data) => {
|
|
assert.equal(
|
|
data.assertions[1].method,
|
|
'notEqual',
|
|
' == compares object references'
|
|
);
|
|
},
|
|
(xhr) => {
|
|
throw new Error(xhr.responseText);
|
|
}
|
|
);
|
|
```
|
|
|
|
You should choose the correct method for the third assertion - `equal` vs. `notEqual`.
|
|
|
|
```js
|
|
(getUserInput) =>
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=4').then(
|
|
(data) => {
|
|
assert.equal(
|
|
data.assertions[2].method,
|
|
'equal',
|
|
"6 * '2' is 12 ! It should be equal to '12'"
|
|
);
|
|
},
|
|
(xhr) => {
|
|
throw new Error(xhr.responseText);
|
|
}
|
|
);
|
|
```
|
|
|
|
You should choose the correct method for the fourth assertion - `equal` vs. `notEqual`.
|
|
|
|
```js
|
|
(getUserInput) =>
|
|
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=4').then(
|
|
(data) => {
|
|
assert.equal(data.assertions[3].method, 'notEqual', "6 + '2' is '62'...");
|
|
},
|
|
(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.
|
|
*/
|
|
```
|