* Update dependencies from https://github.com/dotnet/arcade build 20260404.1
On relative base path root
Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Helix.Sdk From Version 11.0.0-beta.26177.6 -> To Version 11.0.0-beta.26204.1

* Update dependencies from https://github.com/dotnet/arcade build 20260411.1
On relative base path root
Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Helix.Sdk From Version 11.0.0-beta.26177.6 -> To Version 11.0.0-beta.26211.1

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

* Improve nullability.

Sprinkle nullability information in a number of places where it makes sense.

* Fix nullability mismatches

Co-authored-by: Copilot <[email protected]>

* Handle nullable log writes

Co-authored-by: Copilot <[email protected]>

* Fix Windows null log test

Co-authored-by: Copilot <[email protected]>

* Handle null Apple env vars gracefully

Skip null-valued env vars when building Apple mlaunch arguments so the new nullable contract doesn't fail at runtime. Add regression tests covering the run and test simulator paths.

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: Copilot <[email protected]>
Co-authored-by: vitek-karas <[email protected]>

…ests (#1565)

* Add --enable-coverage flag for collecting code coverage from device tests

Adds optional `--enable-coverage` CLI flag across all platforms (Android,
Apple/iOS/tvOS, WASM) that enables code coverage collection during test
execution. When enabled, XHarness coordinates coverage output paths and
transports the resulting Cobertura XML files from the device back to the
host output directory alongside test results.

Changes:
- New `--enable-coverage` switch argument shared across all platforms
- `NUNIT_ENABLE_COVERAGE` / `NUNIT_COVERAGE_OUTPUT_PATH` env var support
  in ApplicationOptions for test runner configuration
- CoverageManager that generates method-level Cobertura XML via reflection
  when no external coverage tool (coverlet) produces a file
- Android: coverage flag passed as instrumentation arg, InstrumentationRunner
  pulls coverage-results-path from device via adb
- Apple: coverage env vars injected into app environment for simulator/device
- WASM: coverage data decoded from STARTCOVERAGEXML stdout markers
- ThreadlessXunitTestRunner made public (enables Android apps to use the
  runner that works with assembly store, required for device testing)
- Unit tests for CoverageManager

Closes #1135

* Update CoverageManager docs: clarify coverlet is not needed

CoverageManager generates coverage via reflection — no external tool
required. Standard tools like coverlet.msbuild cannot instrument
assemblies for device builds (APK/app bundles) since they only hook
into the dotnet test pipeline.

* Re-trigger CI (previous run hit Helix device lab infrastructure failure)

* Remove reflection-based coverage generation and integrate with structured log

- Strip CoverageManager down to only finding external coverage files
  (remove GenerateReflectionCoverage and assembly metadata scanning)
- Android: add coverage file to DiagnosticsFile manifest after adb pull
- Apple: add CopyCoverageResultsAsync to pull coverage from app container
  on iOS 18+, include coverage file in EmitAppleRunSummary manifest
- Update tests for simplified CoverageManager API

* Address review feedback from vitek-karas

- Collect coverage results regardless of test outcome (remove FailedTests == 0 guard)
- Only copy coverage file on Apple when --enable-coverage was passed
- Derive coverage source path from NUNIT_COVERAGE_OUTPUT_PATH env var instead of hard-coding
- Revert ThreadlessXunitTestRunner back to internal (unrelated to coverage)

* Use copied Apple coverage file in diagnostics

Co-authored-by: Copilot <[email protected]>

* Fix Apple coverage env var nullability

Co-authored-by: Copilot <[email protected]>

* Fix Apple coverage file copying

Ensure MacCatalyst collects the copied coverage report and deduplicate the Apple app-container file copy logic, including retry behavior for coverage files.

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: vitek-karas <[email protected]>
Co-authored-by: Copilot <[email protected]>

Co-authored-by: Copilot <[email protected]>

* Update dependencies from https://github.com/dotnet/arcade build 20260425.1
On relative base path root
Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Helix.Sdk From Version 11.0.0-beta.26211.1 -> To Version 11.0.0-beta.26225.1

* Workaround arcade XUnit.targets adding both xunit.assert and xunit.v3.assert.aot

Arcade's XUnit.targets injects xunit.v3.assert.aot for .NETCoreApp projects but
still pins xunit.core to 2.x which transitively brings xunit.assert, producing
CS0433 ambiguous-reference errors. Remove the implicit v3 assert from the test
projects until arcade is updated.

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: Miloš Kotlar <[email protected]>
Co-authored-by: Copilot <[email protected]>

This fixes the iOS 18.5 simulator launch failure (dotnet/maui#35261)
where mlaunch's watchdog-disable flow shuts down the simulator but
doesn't update the in-memory device state, causing it to skip
re-booting and fail with simctl exit code 149 (Shutdown state).

The fix (State = "Shutdown" after ShutdownAsync) was added in
mlaunch commit 4ba65e5 and is included in version 1.1.110+.

Co-authored-by: Copilot <[email protected]>

…501.2 (#1592)

On relative base path root
Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Helix.Sdk From Version 11.0.0-beta.26225.1 -> To Version 11.0.0-beta.26251.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

…507.3 (#1593)

On relative base path root
Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.Helix.Sdk From Version 11.0.0-beta.26251.2 -> To Version 11.0.0-beta.26257.3

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

* Add structured environment info to JSON results

Move host and target environment reporting into XHarness's structured JSON outputs for Android and Apple, including diagnostics and run-summary payloads.

Co-authored-by: Copilot <[email protected]>

* Address environment metadata review feedback

Fix Android cpuinfo frequency fallback, avoid swallowing Apple cancellation, parse nested devicectl hardware details, and remove duplicate ADB version logging.

Co-authored-by: Copilot <[email protected]>

* Fix environment metadata edge cases

Avoid process output deadlock, parse Android cpuinfo MHz with invariant culture, include environment data for android install diagnostics, and preserve devicectl cancellation/nested hardware metadata handling.

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: Copilot <[email protected]>