How can I improve testing coverage in my Node.js application?

How can I improve testing coverage in my Node.js application?

To improve testing coverage, start by identifying critical parts of your application that need testing. Use tools like Jest or Mocha.

What tools do you recommend for measuring test coverage?

I recommend using Istanbul or NYC, which integrate well with Jest and Mocha to provide detailed coverage reports.

How do I set up Jest for my Node.js project?

You can set up Jest by installing it via npm with npm install --save-dev jest, then create a test script in your package.json.

Can you give me an example of a simple test case?

Sure! Here's a simple test case: test('adds 1 + 2 to equal 3', () => { expect(1 + 2).toBe(3); }); This checks if 1 + 2 equals 3.