aws-sdk-mock VS mocha

I don’t think you need AWS Mock to test your Lambdas.

This does not mean we never used aws-sdk-mock - haven't tried yet this version for SDK v3 - check this article for more info - but in general I try to write very simple unit tests, and very simple integration tests, keeping mocks to a minimum.

You can use a dedicated module that makes mocking easier like aws-sdk-mock. I just prefer to use as little dependencies as possible, especially in bigger projects.

Mocha js testing framework is widely used and maintained by a small team https://github.com/mochajs/mocha/issues/5027

Mocha is a simple and flexible JavaScript testing framework for browser and Node.js applications. Unlike other testing frameworks, it takes a minimalist approach and relies on external libraries for key tasks. It uses Sinon for handling spies, stubs, and mocks, and Chai as the assertion engine. Mocha is extensible through many plugins and can integrate with most test runners.

Introduction: Mocha is a feature-rich JavaScript testing framework that operates seamlessly with Node.js. It is especially known for its support of asynchronous testing, making it ideal for modern web applications.

Hardhat allows us to use Mocha and Chai to write tests in Javascript. To get started, navigate to the tests folder and create a new file called ethcommerce.js. Add the code below to your test file:

Mocha Documentation

Unit Testing: Yes, Rest APIs can also be tested using unit tests. This involves executing the HTTP requests and validating the result. Although this method initially requires more effort, it offers the advantage of complete integration into your development process and enables continuous testing. Each programming language has its own tools. I mainly develop with JavaScript, so I can show you a practical example here. I use Mocha and Chai as testing frameworks. For each test, one or more requests are sent to the corresponding Rest API endpoints and the result is validated.

Mocha: -Mocha JS -Wikipedia -W3Resource -Geeks For Geeks -Request for Maintainers

If you've ever done any type of testing with Node.js, you most likely have come up with libraries like Jest, Mocha or Vitest. This is because Node.js for a long time has never provided a native way to do testing. If you wanted some type of testing, you'd have to draw on testing libraries.

Today, I will go to great lengths to setup my tooling to ensure the fastest possible feedback. Why do I still use Mocha for testing JavaScript code when more modern alternatives exist? Because none of them can match the speed of mocha (despite at least one of them makes the claim to speed)

Mocha is a popular test framework.