🚀   Space mission kata

 

A kata project to practice Test Driven Development with Nextjs.

 

Project description

The app enables to launch space missions by retrieving an available rocket, free astronauts, selecting a destination planet, explore estimated costs and launch the mission.

🎯

The goal is to implement business requirements described under #1 Launch a mission using Test Driven Development XP technique.

 

Getting started

This is a Next.js project bootstrapped with create-next-app.

Create a Neon database

1. Sign up to https://neon.tech
2. Create a new project
3. Click the "Connect to your database"
4. Copy the connection string/url
5. Create the .env file in this repository:

DATABASE_URL="postgresql://<user>:<password>@<endpoint_hostname>.neon.tech:<port>/<dbname>?sslmode=require"

6. Add migration and seed the table with default row:

CREATE TABLE public.rockets (
    id integer NOT NULL GENERATED ALWAYS AS IDENTITY,
    model text NOT NULL UNIQUE,
    capacity smallint NOT NULL,
    manufactured_date text NOT NULL,
    state text DEFAULT 'AVAILABLE' NOT NULL,
    PRIMARY KEY (id)
);

CREATE INDEX state_index ON public.rockets (id, state);

INSERT INTO public.rockets (model, capacity, manufactured_date, state)
    VALUES ('Falcon 9', 7, '2025-02-26T16:00:00.000Z', 'AVAILABLE')

Unveil local API url

In the .env file, add the following line:

API_URL="http://localhost:3000/api"

Start the app

Run the development server:

pnpm dev

Open http://localhost:3000 with your browser to see the result.

The auto-updates are enabled in favour to see made code changes as you edit files.

 

Testing

The project is configured for different types of tests.

⚠️ Docker is required to run tests. Make sure it's installed and running before executing the tests.

Unit tests (vitest) will execute files matching __tests__/*.test.ts pattern:

pnpm test:unit

Integration tests (cypress) will pick files matching __tests__/*.test.integration.ts pattern:

pnpm test:integration

⚠️ For Integration tests, the app is compiled and running with the NEXT_PUBLIC_PHASE=test environmental variable.

 

Author / trainer

This project is maintained by Nik Sumeiko.

👨‍🏫 Author's intro

Looking for React mentorship?

Here's a link: https://www.withnik.com
(Let's check if you're eligible to join the program)