1.19.14 dotnet test crashes when running multiple tests

[groogiam]

Describe the bug

After updating my nuget package reference to 1.19.14 dotnet test crashes with a stack overflow exception when running multiple tests.

This appears to happen after rendering when waiting for state. E.g.

        cut.WaitForState(() => cut.Instance.EntityPermission != null);

Results in this exception

Stack overflow.
   at System.Collections.Generic.Dictionary`2[[System.Int32, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Components.RenderTree.ArrayRange`1[[Microsoft.AspNetCore.Components.RenderTree.RenderTreeFrame, Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]], Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].GetBucket(UInt32)
   at System.Collections.Generic.Dictionary`2[[System.Int32, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Components.RenderTree.ArrayRange`1[[Microsoft.AspNetCore.Components.RenderTree.RenderTreeFrame, Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]], Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].FindValue(Int32)
   at System.Collections.Generic.Dictionary`2[[System.Int32, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Components.RenderTree.ArrayRange`1[[Microsoft.AspNetCore.Components.RenderTree.RenderTreeFrame, Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]], Microsoft.AspNetCore.Components, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].ContainsKey(Int32)
   at Bunit.Rendering.RenderTreeFrameDictionary.Contains(Int32)
   at Bunit.Rendering.TestRenderer.GetOrLoadRenderTreeFrame(Bunit.Rendering.RenderTreeFrameDictionary, Int32)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
...
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.LoadRenderTreeFrames(Int32, Bunit.Rendering.RenderTreeFrameDictionary)
   at Bunit.Rendering.TestRenderer.UpdateDisplay(Microsoft.AspNetCore.Components.RenderTree.RenderBatch ByRef)
   at Bunit.Rendering.TestRenderer+<>c.<UpdateDisplayAsync>b__27_0(System.Object)
   at Xunit.Sdk.AsyncTestSyncContext.Send(System.Threading.SendOrPostCallback, System.Object)
   at Bunit.Rendering.TestRenderer.UpdateDisplayAsync(Microsoft.AspNetCore.Components.RenderTree.RenderBatch ByRef)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
   at Bunit.Rendering.TestRenderer.ProcessPendingRender()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.AddToRenderQueue(Int32, Microsoft.AspNetCore.Components.RenderFragment)
   at Microsoft.AspNetCore.Components.ComponentBase.StateHasChanged()
   at Microsoft.AspNetCore.Components.ComponentBase.Microsoft.AspNetCore.Components.IHandleEvent.HandleEventAsync(Microsoft.AspNetCore.Components.EventCallbackWorkItem, System.Object)
   at AppPotion.Web.Ui.Shared.EntityEditor.EditorActionBarComponent+<ActionButtonClicked>d__23.MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
   at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(System.Threading.ContextCallback, System.Object, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.RunContinuations(System.Object)
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].SetExistingTaskResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>, System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at AppPotion.Web.Ui.Framework.EntityEditor.EntityActionDescriptor+<ExecuteAsync>d__43.MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
   at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(System.Threading.ContextCallback, System.Object, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.RunContinuations(System.Object)
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].SetExistingTaskResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>, System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at AppPotion.Web.Ui.Shared.EntityEditor.EntityEditorComponentBase`1+<AddNew>d__90[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
   at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(System.Threading.ContextCallback, System.Object, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.RunContinuations(System.Object)
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].SetExistingTaskResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>, System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at AppPotion.Web.Ui.Shared.EntityEditor.EntityEditorComponentBase`1+<LoadEntityPermissionAsync>d__87[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
   at System.Threading.Tasks.AwaitTaskContinuation.RunCallback(System.Threading.ContextCallback, System.Object, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.RunContinuations(System.Object)
   at System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetResult(System.__Canon)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].SetExistingTaskResult(System.Threading.Tasks.Task`1<System.__Canon>, System.__Canon)
   at AppPotion.Web.Ui.Framework.AppState+<GetEntityPermissionAsync>d__116.MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
   at System.Threading.Tasks.SynchronizationContextAwaitTaskContinuation+<>c__DisplayClass6_0.<GetActionLogDelegate>b__0()
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously(System.Threading.Tasks.TaskCompletionSource, System.Threading.SendOrPostCallback, System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground(WorkItem)
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread)
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()
The program '[19708] dotnet.exe' has exited with code 3221225477 (0xc0000005) 'Access violation'.

Expected behavior:
Tests should not crash dotnet tests and work as in previous versions of bunit.

Version info:

• bUnit version: 1:19.14
• .NET Runtime and Blazor version: .NET 7.0.5
• OS type and version: Windows 10 Pro

Additional context:

I'm still trying to create a simple repro but reverting to 1.18.4 seems to resolve the issue.

[groogiam]

I can reproduce with multiple versions. It appears this is linked to upgrading my projects to .NET 7. It happens more frequently the more tests I run at once.

[egil]

Hi @groogiam,

Thanks for reaching out. Can you share the component under test and the test itself, so we can have a look and better help you.

[groogiam]

It appears returning Task.CompletedTask is causing this. Our framework has a Action bar component which allows actions (buttons) to be configured which float at the top of a component.

    <Shared.EntityEditor.EditorActionBarComponent
        OnActionExecuting='ActionExecuting'
        OnActionExecuted='ActionExecuted'
        MenuActions='MenuActions'
        id='@($"Asset-Actions-Bar-{ComponentInstanceId}")'>
    </Shared.EntityEditor.EditorActionBarComponent>

This component then provides and executing and executed event callback. We have code gen that scaffolds these out to:

        private Task ActionExecuting()
        {
            IsLoading = true;
            return Task.CompletedTask;
        }
        
        private async Task ActionExecuted()
        {
            IsLoading = false;
            await Task.CompletedTask;
        }

For some reason Task.CompletedTask rather than actually awaiting something causes the infinite call to Bunit.Rendering.TestRenderer.LoadRenderTreeFrames when using the Click method.

E.g. cut.Find( $"#Asset-Actions-Bar-{cut.Instance.ComponentInstanceId} [title*='Reset form to allow creation of a new entity.']").Click();

Calling ClickAsync seems to prevent the exception from happening.

The strange thing is that the test that is actually failing is not the one that is calling Click. That test passes and another unrelated test that has Click call hangs and then gets the stack overflow exception.

This is the test that seems to be triggering the exception

    [Fact]
    public void PrimaryOwner_Lookup_Filter_Is_Reset_When_In_Add_New_Clicked()
    {
        using var ctx = TestContextWithMockHttp.CreateDefault();

        ctx.JSInterop.Mode = JSRuntimeMode.Loose;
        const string entityName = nameof(Asset);

        // setting up the entity
        var entity = new Asset
        {
            Id = 25,
            Name = "Asset 1",
            TypeDdName = AppPotion.Bd.DropDowns.AssetTypeDd.District.Name,
            TypeDdVal = AppPotion.Bd.DropDowns.AssetTypeDd.District.Value,
            StatusDdName = AppPotion.Bd.DropDowns.AssetStatusDd.Active.Name,
            StatusDdVal = AppPotion.Bd.DropDowns.AssetStatusDd.Active.Value,
            CountryDdName = AppPotion.Bd.DropDowns.CountryDd.USA.Name,
            CountryDdVal = AppPotion.Bd.DropDowns.CountryDd.USA.Value,
            CreatedBy = "System",
            CreatedDate = DateTime.Now,
            LastModifiedBy = "System",
            LastModifiedDate = DateTime.Now
        };

        // mocking the http calls which happen while initially loading the component
        ctx.MockHttp.AddEmptyDocumentManagementResponses();
        ctx.MockHttp.AddEmptyEntityTagResponses();
        ctx.MockHttp.When($"http://localhost/api/{entityName}/EntityPermission/25").RespondJson(new EntityPermissionDescriptor
        {
            EntitySystemName = entityName,
            EntityId = 25,
            Create = true,
            Delete = true,
            Read = true,
            Update = true
        });

        ctx.MockHttp.When($"http://localhost/api/{entityName}/EntityPermission/0").RespondJson(new EntityPermissionDescriptor
        {
            EntitySystemName = entityName,
            EntityId = 0,
            Create = true,
            Delete = true,
            Read = true,
            Update = true
        });

        ctx.MockHttp.When($"http://localhost/odata/{nameof(Asset)}({entity.Id})").RespondOData(entity);

        // inject service for setting the application in Admin User context
        ctx.SetLogin(BlazorTestHelpers.CreateAdminUserContext());
        var appState = ctx.Services.GetRequiredService<AppState>();
        appState.SetPrivateProperty(nameof(AppState.ViewPortSize), ViewPortSize.Large); //viewport size must be large so the lookup component renders as a grid.

        var parameters = new List<ComponentParameter>
        {
            ComponentParameter.CreateParameter(nameof(Ui_Asset_AssetEditor.EntityId),
                entity.Id)
        };

        var cut = ctx.RenderComponent<Ui_Asset_AssetEditor>(parameters.ToArray());

        //wait for web requests to complete
        cut.WaitForState(() => cut.Instance.EntityPermission != null);

        //Asserts

        // Click Add New Button
        cut.Find(
            $"#Asset-Actions-Bar-{cut.Instance.ComponentInstanceId} [title*='Reset form to allow creation of a new entity.']").Click();

        cut.Render();

       //Asserts
    }

This is the test where the exception is thrown.

    [Fact]
    public void PrimaryOwner_Lookup_Is_Filtered_For_Companies_With_AssetOwnerMap_When_Entity_In_Add_New_Mode()
    {
        using var ctx = TestContextWithMockHttp.CreateDefault();

        ctx.JSInterop.Mode = JSRuntimeMode.Loose;
        const string entityName = nameof(Asset);

        // mocking the http calls which happen while initially loading the component
        ctx.MockHttp.AddEmptyDocumentManagementResponses();
        ctx.MockHttp.AddEmptyEntityTagResponses();
        ctx.MockHttp.When($"http://localhost/api/{entityName}/EntityPermission/0").RespondJson(new EntityPermissionDescriptor
        {
            EntitySystemName = entityName,
            EntityId = 0,
            Create = true,
            Delete = true,
            Read = true,
            Update = true
        });

        // inject service for setting the application in Admin User context
        ctx.SetLogin(BlazorTestHelpers.CreateAdminUserContext());
        var appState = ctx.Services.GetRequiredService<AppState>();
        appState.SetPrivateProperty(nameof(AppState.ViewPortSize), ViewPortSize.Large); //viewport size must be large so the lookup component renders as a grid.

        var cut = ctx.RenderComponent<Ui_Asset_AssetEditor>();

        //wait for web requests to complete
        cut.WaitForState(() => cut.Instance.EntityPermission != null);

        //Asserts
    }

Thanks for your help on this.

[egil]

This is a curious case. The LoadRenderTreeFrames method does call itself recursively, but we have never had anybody raise an issue like this before. I guess it could result in a stack overflow if the component tree is super deep.

In your test, do you have a very deep component tree (many nested components)?

[groogiam]

The components go 2 maybe 3 deep. The more curious thing is that this only manifests when running tests in parallel. Running a single test via visual studio or resharper test window does not result in the exception.

It updated all our tests Replacing the Click() calls with awaited calls ClickAsync and this does seem to resolve the issue.

[egil]

That Infinite loop could be the result of an inconsistent state in Blazors internal render tree which that method that seems to overflow is walking down.

Why that happens is not clear. Are each test totally independent? That is, no shared state between them?

[groogiam]

As far as I can tell there is not. I spent some time today and yesterday looking through the tests and infrastructure. There are some private members declared in some of the tests used by multiple cases. My understanding of XUnit is that each of the tests method would spin up a new class instance so different instances would not be accessing those members. All the containers and mocks are defined locally in the methods and the services do not seem to have any static properties that would allow state to be shared across tests.

[egil]

That is correct. Xunit creates a new instance of a test class every time, which means all instance fields are recreated.

[egil]

I do not see anything in the tests you have shared that should cause this.

One small suggestion would be to wrap your HttpClient in an abstraction, e.g. IMyDataService, and instead create a mock or fake of that instead of mocking the HttpClient response and request. That will allow you to make the tests more deterministic by having a fake/mock implementation of IMyDataService that returns a completed task (Task.Completed, Task.FromResult()).

[David-Moreira]

Hello,

I have also the same problem on a new project I'm working on with MSTest + bUnit.

I joined this project, mid way so there were already alot of tests in place and it's hard to track what's causing it, but by enabling parallelize I get the same behavior as OP transiently, more frequently, so sometimes it would fail, sometimes not...
It does seem something to do with shared state. Just can't tell from where, codebase or actual Blazor engine.

One thing of note is that like OP, we are also using the WaitFor helpers, if that helps.

Also recently it was suddently happening very frequently even on sequential(non parallel) run, by removing the TestContext.Dispose from the TestCleanUp it fixed it, not sure it is to do with having an async dispose on it. But anyway I'm trusting the framework to still cleanup / Dispose properly of TestContext.

---

These kind of problems are always hard to diagnose, troubleshoot, if I figure out a reproducible I'll post it here.

[egil]

Thanks for jumping in @David-Moreira. I am pretty sure that things are still being cleaned up without disposing of the TestContext.

Just want to confirm. Are you not seeing the issue at all when you do not dispose of the TestContext after the test is done running?

[David-Moreira]

So,
For Non Parallel runs:
it was happening like 5/10% of the time, mostly on the pipeline (probably because there's less resources, more added latency?).
Then after adding a few apparently regular tests, very similar to other tests we already had (related to crud pages, clicking buttons etc...) it started happening like practically on every run and the test running on crash would apparently always be different. So That was super strange.
So after removing the TestContext.Dispose explicit call it did immediately started going. I can't say it's gone completly but I haven't seen it yet, in about 10-15 runs.
Unfortunately I can't really post code, etc...(and there's alot of tests anyway) but if I ever see it again, figure out reproducible I'll let you know.

I don't see anything too fancy on your disposal code, but maybe the unawaited async disposal could have some side effect... Anyway this might be or not be the same apparent cause as OP.

For The Parallel runs:
I only enabled it once with 4 workers, after removing the explicit Dispose and I immediately got it failing, but I was just checking and the error wasn't the same stack overflow, so there might be another issue all together... :S I didn't bother exploring this one further, because tests still run acceptably fast non parallel for now.

[egil]

Thanks, @David-Moreira, it is certainly giving us something to investigate.

The stack overflow that you and @groogiam are seeing indicates that the Blazor renderer's render tree is in an inconsistent state. That should not be something that could happen and something that happens outside of bUnits control. It could be that it happens when we are disposing of the Blazor renderer and we are not guarding against accessing the render tree at that point.

cc. @linkdotnet.

[egil]

Hey @groogiam and @David-Moreira,

I am pushing a preview release to Nuget right now. It contains some code that may fix the issues you are experiencing. If you can, please give it a try in your code base. It is available here: https://www.nuget.org/packages/bunit/1.20.7-preview

You can also try to extend the default "wait for" timeout. The default is 1 second, which may sometimes be too short if running on slow hardware.

Just set the static property TestContext.DefaultWaitTimeout = TImeSpan.FromSeconds(30) or similar, to ensure that each test gets a chance to render before the timeout is reached. It should not affect normal test runtimes though.

Another thing you can try to aid debugging is to enable logging of the renderer logic. See https://bunit.dev/docs/misc-test-tips.html#capturing-logs-from-ilogger-in-test-output for more.