davide
24368a07b5
Avalonia's Dispatch(Func<Task>) returns at the first real await, so the assertions after it never ran and async ViewModel tests passed vacuously. UiSession.Run now drives the body to completion while pumping the dispatcher. The test profile has no checkpoints, since the fake chains use tiny heights that the real mainnet checkpoints would try to anchor.
46 lines
2.0 KiB
C#
46 lines
2.0 KiB
C#
using Avalonia;
|
|
using Avalonia.Headless;
|
|
using PalladiumWallet.Tests.App;
|
|
|
|
// Boots the real Avalonia Application headlessly (no window, no GPU) so ViewModels that use
|
|
// the dispatcher (DispatcherTimer, UIThread.Post) can be tested. The xunit-v3-only helper
|
|
// package (Avalonia.Headless.XUnit) is deliberately not used: this suite is on xunit 2.
|
|
[assembly: AvaloniaTestApplication(typeof(TestAppBuilder))]
|
|
|
|
namespace PalladiumWallet.Tests.App;
|
|
|
|
public class TestAppBuilder
|
|
{
|
|
public static AppBuilder BuildAvaloniaApp() =>
|
|
AppBuilder.Configure<global::PalladiumWallet.App.App>()
|
|
.UseHeadless(new AvaloniaHeadlessPlatformOptions());
|
|
}
|
|
|
|
/// <summary>One shared headless Avalonia session; tests run their body on its UI thread.</summary>
|
|
internal static class UiSession
|
|
{
|
|
private static readonly Lazy<HeadlessUnitTestSession> Session =
|
|
new(() => HeadlessUnitTestSession.StartNew(typeof(TestAppBuilder)));
|
|
|
|
// Avalonia's Dispatch(Func<Task>) returns as soon as the body reaches its first real await:
|
|
// everything after it (including the assertions) would silently never run and the test would
|
|
// pass vacuously. So the async body is driven to completion here, pumping the dispatcher on
|
|
// the UI thread (the continuations of its awaits are posted there), with a hard time limit.
|
|
public static Task Run(Func<Task> body) => Session.Value.Dispatch(() =>
|
|
{
|
|
var task = body();
|
|
var deadline = DateTime.UtcNow + TimeSpan.FromMinutes(2);
|
|
while (!task.IsCompleted)
|
|
{
|
|
if (DateTime.UtcNow > deadline)
|
|
throw new TimeoutException("Async UI test body did not complete within 2 minutes.");
|
|
Avalonia.Threading.Dispatcher.UIThread.RunJobs();
|
|
Thread.Sleep(1);
|
|
}
|
|
task.GetAwaiter().GetResult();
|
|
}, CancellationToken.None);
|
|
|
|
public static Task Run(Action body) =>
|
|
Session.Value.Dispatch(() => { body(); return Task.CompletedTask; }, CancellationToken.None);
|
|
}
|