How to Simplify Testing an ASP.NET Core API

▤ Summary

This article shows how to simplify ASP.NET Core API testing with reusable fixtures and WebApplicationFactory-based setup. It walks through a sample WeatherForecast API that uses fake time, fake random values, and a test database to verify persistence and responses. It then demonstrates how FEFF.TestFixtures replaces a lot of manual test scaffolding with a cleaner fixture set. The article also compares this approach with pytest-style fixtures to help .NET teams understand the testing model. Overall, it is a developer-focused guide to improving integration testing for ASP.NET Core applications.

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