How do I set up Mocha in Node.js?

How do I set up Mocha in Node.js?

To set up Mocha in Node.js, first, ensure you have Node.js installed. Then, you can install Mocha using npm.

What command do I use to install Mocha?

You can install Mocha by running the command npm install --save-dev mocha in your terminal.

How do I create a test file for Mocha?

Create a new file in your project directory, for example, test.js, and write your test cases using Mocha's syntax.

Can you give me an example of a simple test?

Sure! Here's a simple test example:

const assert = require('assert');

describe('Array', function() {
  describe('#indexOf()', function() {
    it('should return -1 when the value is not present', function() {
      assert.strictEqual([1, 2, 3].indexOf(4), -1);
    });
  });
});