Guard dialog completion by presentation identity

2026-11-13 21:25:42 -05:00
parent d370dbd37c
commit 6489c9fc0f
9 changed files with 217 additions and 19 deletions
@@ -0,0 +1,29 @@
+using ZB.MOM.WW.ScadaBridge.CentralUI.Components.Shared;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Shared;
+
+/// <summary>Custom completions belong to the dialog whose typed context was issued.</summary>
+public sealed class DialogContextIdentityTests
+{
+    /// <summary>A canceled custom context cannot confirm or cancel a subsequently opened dialog.</summary>
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async Task StaleCustomContext_DoesNotResolveNewDialog(bool staleCancel)
+    {
+        var service = new DialogService();
+        DialogContext<bool> first = null!;
+        var pendingFirst = service.ShowAsync<bool>("First", context => { first = context; return _ => { }; });
+        first.Cancel();
+        Assert.False(await pendingFirst);
+
+        DialogContext<bool> second = null!;
+        var pendingSecond = service.ShowAsync<bool>("Second", context => { second = context; return _ => { }; });
+        if (staleCancel) first.Cancel(); else first.Close(true);
+        Assert.False(pendingSecond.IsCompleted);
+        Assert.Equal("Second", service.Current?.Title);
+        second.Close(true);
+        Assert.True(await pendingSecond);
+        Assert.Null(service.Current);
+    }
+}