How can I automate tests in Node.js?

How can I automate tests in Node.js?

You can automate tests in Node.js using frameworks like Mocha, Jest, or Jasmine. Do you have a specific framework in mind?

I think I want to use Jest. How do I get started?

To get started with Jest, first install it using npm: npm install --save-dev jest. Then, create a test file and write your test cases.

What does a simple test case look like in Jest?

A simple test case in Jest might look like this:

test('adds 1 + 2 to equal 3', () => {
  expect(1 + 2).toBe(3);
});

How do I run the tests once I've written them?

You can run your tests by adding a script in your package.json:

"scripts": {
  "test": "jest"
}

Then, run npm test in your terminal.