---

name: csharp-run description: > Run tests, lint, and build for .NET projects. Executes dotnet test with coverage, dotnet format check, and reports results. Use for "/run", "run tests", "check build", or "lint code". user-invocable: true allowed-tools:

• Bash
• Read
• Glob metadata: author: csharp-standards version: "3.0.0"

---

Run Tests, Lint & Build

Execute the full quality check pipeline for .NET projects.

Quick Commands

Full Pipeline

Step 1: Build

Copydotnet build --no-incremental

Check for:

• Compilation errors
• Analyzer warnings
• Nullable warnings

Step 2: Run Tests

Copydotnet test --no-build --collect:"XPlat Code Coverage"

If tests fail:

1. Show failed test names
2. Show assertion messages
3. Suggest fixes based on test type

Step 3: Check Formatting

Copydotnet format --verify-no-changes

If fails, suggest:

Copydotnet format  # Auto-fix

Test Output Analysis

When tests fail, analyze output:

Copy❌ OrderServiceTests.Should_CreateOrder_When_ValidInput
   Expected: OrderStatus.Pending
   Actual:   OrderStatus.Draft

Provide actionable feedback:

1. Which assertion failed
2. Expected vs actual values
3. Likely cause
4. Suggested fix

Coverage Report

After tests pass, show coverage summary:

Copy# Find coverage file
find . -name "coverage.cobertura.xml" -type f | head -1

# If reportgenerator installed
dotnet tool run reportgenerator \
  -reports:**/coverage.cobertura.xml \
  -targetdir:coverage \
  -reporttypes:TextSummary

Coverage thresholds:

• Line coverage: Target 80%+
• Branch coverage: Target 70%+

Lint Checks

Format Check

Copydotnet format --verify-no-changes

Roslynator Analysis

Copydotnet roslynator analyze

Auto-Fix

Copydotnet roslynator fix
dotnet format

Error Handling

Build Errors

CopyError CS0246: The type or namespace 'OrderId' could not be found

→ Check missing using directive or missing reference.

Test Errors

CopyTest host process exited with error

→ Check for unhandled exceptions in test setup.

Format Errors

Copy/src/OrderService.cs(15,1): warning IDE0055: Fix formatting

→ Run dotnet format to auto-fix.

CI/CD Integration

For CI pipelines:

Copy# Reproducible restore with lock files
dotnet restore --locked-mode

# Build with deterministic output
dotnet build --configuration Release /p:ContinuousIntegrationBuild=true

# Test with coverage
dotnet test --no-build --collect:"XPlat Code Coverage"

# Format check (fail if not formatted)
dotnet format --verify-no-changes

Makefile Integration

If Makefile exists, prefer:

Copymake test    # Runs dotnet test
make lint    # Runs format check
make fix     # Auto-fixes issues

Troubleshooting

Tests Not Found

CopyNo test is available in [assembly]

Check:

1. Test project has <IsTestProject>true</IsTestProject>
2. Test methods have [Fact] or [Theory] attributes
3. Test class is public

Coverage Not Generated

Check:

1. coverlet.collector package is installed
2. Running with --collect:"XPlat Code Coverage"

Format Hangs

Try with verbosity:

Copydotnet format --verbosity diagnostic