Write Tests for the Service

Follow best practices and write tests for the new "cross-post-to-devto" service you created in the previous lessons.

We'll cover the following

Writing test
Running test

In this lesson, following best practices, we are going to write a test for the new cross-post-to-devto service. Some people prefer a separate test directory, while others like their test files located next to the production code itself. We will take a “keep-my-tests-close-to-the-code” approach in this course. The concepts you will learn apply regardless of where the tests are located, and you can follow your own preference.

Writing test

All paths and commands below are relative to services/web/firebase/functions.

Start by installing three necessary NPM packages:

npm i -D mocha chai sinon

Each of these dependencies can easily be covered in three separate courses. Please visit their websites for more details, or feel free to use your own testing libraries of choice.

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Introduction

Create a GitHub Project Using Monorepo Template

Set Up Backend Using Sapper Template

Host Your Web App on Firebase

Set Up The Continuous Deployment Pipeline

Local Development

Feature Toggles

Production Monitoring & Rollbacks

Testing

Tailwind CSS

User Authentication

Database - Cloud Firestore

Firebase Local Emulator Suite

Trigger Services Based on Events

Final Tasks

What's Next?

Write Tests for the Service

Writing test