Migrate backend test suite from xUnit v2 to v3

- Directory.Packages.props: xunit 2.9.3 -> xunit.v3 4.0.0, bump
  xunit.runner.visualstudio to the matching 4.0.0
- All 5 test csproj: xunit -> xunit.v3 package reference, add
  <OutputType>Exe</OutputType> (v3 test projects are standalone
  executables)
- backend/global.json: opt dotnet test into the new MTP-native mode
  (.NET 10 SDK removed the old VSTest bridge for MTP-based test
  projects like xunit v3)
- IAsyncLifetime implementations (HandlerTestBase, ApiTestFixture,
  InfrastructureTestFixture, StorageServiceTests): v3's IAsyncLifetime
  now IS IAsyncDisposable, so InitializeAsync/DisposeAsync return
  ValueTask instead of Task. ApiTestFixture specifically now overrides
  WebApplicationFactory.DisposeAsync instead of implementing
  IAsyncLifetime.DisposeAsync explicitly, since v3 collapses both to
  the same single DisposeAsync slot
- Replaced CancellationToken.None with TestContext.Current.CancellationToken
  across the suite (a v3-only API) and added it to every call that
  was silently omitting a CancellationToken argument, per the new
  xUnit1051 analyzer warnings that came with the v3 package

Verified: dotnet build (0 warnings, 0 errors) and dotnet test, 250/250
passing under the new MTP runner.
This commit is contained in:
2026-09-09 22:11:29 +02:00
parent b57949a6bc
commit 98e6dfc4c4
62 changed files with 286 additions and 272 deletions
@@ -16,9 +16,9 @@ public abstract class HandlerTestBase : IAsyncLifetime
protected TestDatabase Database => database;
public async Task InitializeAsync() => database = await TestDatabase.CreateAsync();
public async ValueTask InitializeAsync() => database = await TestDatabase.CreateAsync();
public Task DisposeAsync() => database.DisposeAsync().AsTask();
public ValueTask DisposeAsync() => database.DisposeAsync();
protected static ILogger<T> NoOpLogger<T>() => NullLogger<T>.Instance;