freeCodeCamp/guide/english/certifications/information-security-and-quality-assurance/quality-assurance-and-testing-with-chai/use-the-double-equals-to-assert-equality/index.md

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title: Use the Double Equals to Assert Equality
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# Use the Double Equals to Assert Equality

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## Problem Explanation
To begin, locate the file "tests/1_unit_tests.js" and scroll to the suite of tests for 'Equality'.

This file contains multiple suites of tests for the project, and this challenge requires you to make the tests in ``` /** 5 */``` pass.


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## Hints

### Hint 1

The lines in the test should be changed from `assert.fail()` to either `assert.equal()` or `assert.notEqual()`.


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## Solutions

<details><summary>Solution 1 (Click to Show/Hide)</summary>

```js
/** 5 - .equal(), .notEqual() **/
// .equal() compares objects using '=='
test('#equal, #notEqual', function() {
  assert.equal(12, '12', 'numbers are coerced into strings with == ');
  assert.notEqual({ value: 1 }, { value: 1 }, '== compares object references');
  assert.equal(6 * '2', '12', 'no more hints...');
  assert.notEqual(6 + '2', '12', 'type your error message if you want');
});
```
</details>