What is the 'Ports Testing' approach?

Ports testing focuses on testing the domain handlers (commands and queries) that represent specific user stories, rather than testing every internal implementation detail in isolation.

Is this skill compatible with .NET 6.0 and above?

Yes, it is specifically configured for modern .NET environments, including support for Nullable types and the latest EF Core testing patterns.

How do Aggregate Builders improve my tests?

Aggregate Builders provide a fluent API to construct complex domain objects with valid default data, making your test 'Arrange' sections cleaner and more focused on the specific values that matter for the test case.

Can I use this with frameworks other than NUnit?

While the conventions provided in this skill are tailored for NUnit, the underlying philosophy of fakes and fluent builders is applicable to xUnit and MSTest as well.

Why does this skill avoid using mocking libraries?

This skill favors 'fakes' and the EF Core InMemory database to catch more realistic issues. It reduces the overhead of maintaining complex mock setups and ensures tests behave closer to the production environment.

.NET BDD & Unit Testing

Name: .NET BDD & Unit Testing
Author: nesbo

bynesbo

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セキュリティとテスト

Implements realistic behavior-driven unit testing patterns for .NET domain services using EF Core InMemory and custom fakes.

The .NET BDD Testing skill provides Claude with a specialized framework for writing robust unit tests within .NET domain-driven architectures. Moving away from traditional mocking libraries, it promotes a 'ports testing' philosophy that uses EF Core's InMemory database and custom fakes to create more realistic test scenarios. This approach allows developers to catch integration issues earlier in the cycle while maintaining the speed of unit tests. By utilizing fluent aggregate builders and standardized naming conventions, it ensures that tests are readable, maintainable, and serve as live documentation for business logic.

主な機能

01Focuses on port and handler testing to validate entire user stories.

0224 GitHub stars

03Enforces 'Given_When_Then' naming conventions for clear test intent.

04Includes custom fake implementations for clocks, storage, and unit of work.

05Utilizes EF Core InMemory database for high-fidelity state testing without mocks.

06Provides fluent aggregate builders for expressive and readable test data setup.

ユースケース

01Replacing brittle mocking-heavy tests with more resilient, state-based assertions.

02Standardizing testing architecture across large C# enterprise codebases.

03Applying Test-Driven Development (TDD) to complex .NET domain handlers and aggregates.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nesbo/dotnet-claude-code-skills bdd-dotnet

For use in Claude.ai and ChatGPT

Download Skill