.NET — Tier 1 — Required

Tier 1 .NET checks verify the fundamental build and test infrastructure every .NET repository must have. Each check is worth 4 points. These checks only run when a .sln file is detected in the repository root.

Directory.Build.props

Property	Value
Slug	dotnet-build-props
Category	Build Config
Points	4

What it checks: A Directory.Build.props file exists in the repository root.

Why it matters: Directory.Build.props centralizes MSBuild properties across all projects in a solution. Without it, settings like <LangVersion>, <Nullable>, and <ImplicitUsings> must be duplicated in every .csproj file, leading to drift and inconsistency.

How to fix: Create a Directory.Build.props in the repo root with shared properties:

<Project>
  <PropertyGroup>
    <LangVersion>latest</LangVersion>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>
</Project>

---

Test Project Exists

Property	Value
Slug	dotnet-tests-exist
Category	Testing
Points	4

What it checks: At least one test project exists (matching *Tests*/*.csproj or *Test*/*.csproj patterns).

Why it matters: Automated tests are the foundation of software quality. A .NET solution without test projects cannot verify correctness, making refactoring and upgrades risky.

How to fix: Create a test project using xUnit, NUnit, or MSTest:

dotnet new xunit -n MyProject.Tests
dotnet sln add MyProject.Tests/MyProject.Tests.csproj