write-xaml-tests

dotnet

Creates XAML unit tests for GitHub issues in the Controls.Xaml.UnitTests project. Tests XAML parsing, compilation (XamlC), and source generation. Use when testing XAML-specific behavior, not UI interactions.

Quick Install

bunx add-skill dotnet/maui -s write-xaml-tests

Requires .NET SDK for building and running xUnit tests.androiddesktopdotnethacktoberfestiosmaccatalyst

Instructions

Write XAML Tests Skill

Creates XAML unit tests that verify XAML parsing, XamlC compilation, and source generation behavior.

When to Use

✅ Testing XAML parsing/inflation behavior
✅ Testing XamlC (IL generation) correctness
✅ Testing Source Generator output
✅ XAML-specific bugs (bindings, markup extensions, x:Name, etc.)

When NOT to Use

❌ Testing UI interactions or visual behavior → Use write-ui-tests skill
❌ Testing runtime behavior after page loads → Use write-ui-tests skill
❌ Testing platform-specific rendering → Use write-ui-tests skill

Required Input

Before invoking, ensure you have:

Issue number (e.g., 12345)
Issue description - what XAML behavior is broken
Expected vs actual behavior

Workflow

Step 1: Read the XAML Unit Test Guidelines

cat .github/instructions/xaml-unittests.instructions.md

This contains the authoritative conventions for:

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# Build the test project
dotnet build src/Controls/tests/Xaml.UnitTests/Controls.Xaml.UnitTests.csproj -c Debug --no-restore -v q

# Run specific test
dotnet test src/Controls/tests/Xaml.UnitTests/Controls.Xaml.UnitTests.csproj --filter "FullyQualifiedName~MauiXXXXX" --no-build

✅ XAML unit test created for Issue #XXXXX

**Files:**
- `src/Controls/tests/Xaml.UnitTests/Issues/MauiXXXXX.xaml`
- `src/Controls/tests/Xaml.UnitTests/Issues/MauiXXXXX.xaml.cs`

**Test method:** `DescriptiveTestName`
**Inflators tested:** Runtime, XamlC, SourceGen
**Verification:** Tests [PASS/FAIL] as expected

write-xaml-tests

Write XAML Tests Skill

When to Use

When NOT to Use

Required Input

Workflow

Step 1: Read the XAML Unit Test Guidelines

Related Skills

flow

verify

feature-flags

flags

Write XAML Tests Skill

When to Use

When NOT to Use

Required Input

Workflow

Step 1: Read the XAML Unit Test Guidelines

Step 2: Create Test Files

Step 3: Verify Tests Compile and Run

Step 4: Verify Test Behavior

Output

References

Related Skills

flow

verify

feature-flags

flags