fsharp-testing

Write and organize F# tests using xUnit, FsUnit, FsCheck, and Testcontainers.

Updated Jun 22, 2026
One-click install
npx skills add https://github.com/TymorIbrahim/UniPilot --skill fsharp-testing-tymoribrahim
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fsharp-testing
Source: https://github.com/TymorIbrahim/UniPilot/tree/main/.cursor/skills/fsharp-testing
Command: npx skills add https://github.com/TymorIbrahim/UniPilot --skill fsharp-testing-tymoribrahim

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires xunit, fsunit, unquote, fscheck, nsubstitute, testcontainers, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the challenges of writing, reviewing, and organizing tests in F# applications, ensuring robust and maintainable code.

Core Features & Use Cases

  • Testing Framework Stack: Provides a comprehensive set of tools including xUnit, FsUnit, Unquote, FsCheck, NSubstitute, and Testcontainers.
  • Unit Testing: Offers guidelines for structuring unit tests with xUnit and FsUnit.
  • Property-Based Testing: Demonstrates how to perform property-based testing with FsCheck.
  • Integration Testing: Includes techniques for integration testing, including ASP.NET Core integration tests.
  • Test Organization: Offers best practices for organizing tests in a project structure.

Quick Start

Activate the fsharp-testing skill to learn best practices for testing F# applications.

Frequently Asked Questions about fsharp-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I write unit tests in F# using FsUnit and Unquote?

Unit testing in F# uses FsUnit and Unquote to structure assertions with xUnit. This combination enables expressive, readable test cases that verify individual application components for robust and maintainable code.

What is property-based testing in F# and how does FsCheck work?

Property-based testing with FsCheck automatically generates test inputs to validate F# code properties. Rather than writing individual test cases, it generates numerous inputs to verify logical rules hold true across edge cases.

How do I set up integration testing for F# with ASP.NET Core and Testcontainers?

Integration testing in F# leverages Testcontainers for real dependencies and ASP.NET Core integration tests. This approach validates components together by running them in realistic environments to catch interaction issues.

Can I use NSubstitute for mocking dependencies in F# test projects?

Yes, NSubstitute is included in the testing stack for mocking dependencies in F# applications. It allows you to isolate units of code by substituting interfaces during unit tests across the xUnit framework.

What are the best practices for organizing tests in an F# project structure?

Organizing F# tests involves separating unit, property-based, and integration tests logically using the xUnit and FsCheck stack. Structured project organization ensures test suites remain maintainable and robust as the application scales.

Do I need prior F# and .NET testing framework experience to use this testing stack?

Yes, familiarity with F# and .NET testing frameworks is required. This testing stack employs advanced concepts across xUnit, FsUnit, Unquote, FsCheck, NSubstitute, and Testcontainers for comprehensive application validation.