My REST API Tests Project (C#)

A C# test project demonstrating REST API testing against the Restful Booker public API.

What is tested

Tests cover three areas of the Restful Booker API:

• Auth - token generation via POST /auth
• Booking - create, read, update, and delete bookings via /booking
• Health check - service availability via GET /ping

Tech stack

• .NET 10 / xUnit
• FluentAssertions
• Newtonsoft.Json
• HttpClient via Microsoft.Extensions.Http
• Microsoft.Extensions.Configuration for settings and secrets

Configuration

API credentials are read from Config/appsettings.json and can be overridden with environment variables (used in CI).

Project structure

Folder	Purpose
Controllers/	Test classes organized by API controller (Auth, Booking, Ping)
Fixtures/	TestFixture — sets up HttpClient and handles auth token caching
Models/	DTOs for serializing request and response bodies
Config/	ApiSettings and TestConfiguration — reads from appsettings.json or environment variables

Running the tests

dotnet test