dotnet-testing-advanced-aspnet-integration-testing

What problem does it solve?

This Skill solves the complexity of validating ASP.NET Core Web API integration points by providing a structured approach to use WebApplicationFactory, TestServer, and HttpClient together with an in-memory database to ensure end-to-end reliability of endpoints, middleware, and dependency injection.

Core Features & Use Cases

• WebApplicationFactory and TestServer driven end-to-end testing for ASP.NET Core Web APIs.
• In-memory database configuration and seed data for deterministic integration scenarios.
• Customizable test host and service overrides to simulate external dependencies and middleware behavior.
• Clear testing guidance for routing, authentication/authorization, error handling, and DI wiring.

Quick Start

Use this skill to quickly scaffold integration tests by creating a CustomWebApplicationFactory, configure an in-memory database, inject test services, and write tests that exercise endpoints with HttpClient and verify responses using assert libraries.