xunit-testing-patterns

What problem does it solve?

This Skill provides comprehensive xUnit testing patterns, solving the challenge of writing effective, maintainable, and reliable tests for .NET applications. It guides you in structuring unit, integration, and component tests, ensuring high code quality and confidence in your deployments.

Core Features & Use Cases

• Test Structure & Naming: Guides on organizing tests with Fact, Theory, MemberData, and descriptive naming conventions for clarity.
• Setup & Teardown: Demonstrates how to use IClassFixture, ICollectionFixture, and IAsyncLifetime for efficient test setup and cleanup.
• Assertions & Mocks: Covers common xUnit assertions and integration with mocking frameworks (e.g., Moq) for isolating units under test.
• Integration Testing: Patterns for writing integration tests for application services and API endpoints, validating interactions with dependencies.
• Use Case: A backend developer needs to write unit tests for a new C# service. Using this skill, they structure their tests using Fact and Theory, mock external dependencies, and use IClassFixture for shared test data setup.

Quick Start

Write an xUnit Fact test for a simple C# Calculator class's Add method, asserting the correct sum of two numbers.