fix(engine): discard cancelled pipeline results from uncooperative engines

2026-09-29 10:31:23 -04:00
parent c914d2bbd9
commit 7aeb636ca2
2 changed files with 17 additions and 0 deletions
@@ -101,6 +101,21 @@ public class NestPipelineTests
        Assert.Contains("Default", error.Message);
    }

+    [Fact]
+    public void CancellationDuringSolveDiscardsEvenAnEngineThatReturnsNormally()
+    {
+        using var cts = new CancellationTokenSource();
+        var engine = new StubEngine(job =>
+        {
+            cts.Cancel();
+            return OnePlate(job, new NestJobPlacement(job.Parts[0].Id, 0, 1, 1, 0));
+        });
+
+        Assert.ThrowsAny<OperationCanceledException>(() =>
+            NestPipeline.Run(engine, "IgnoresStop", Request("IgnoresStop", Item("bracket", 1)), null, cts.Token)
+        );
+    }
+
    [Fact]
    public void CancellationPropagatesWithoutAResult()
    {