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67 lines
2.9 KiB
67 lines
2.9 KiB
// Copyright (c) 2026 Siegfried Pammer |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this |
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// software and associated documentation files (the "Software"), to deal in the Software |
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// without restriction, including without limitation the rights to use, copy, modify, merge, |
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons |
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// to whom the Software is furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in all copies or |
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// substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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// DEALINGS IN THE SOFTWARE. |
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using System; |
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using System.Linq; |
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using ICSharpCode.ILSpyX.TreeView; |
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using NUnit.Framework; |
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using NUnit.Framework.Interfaces; |
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[assembly: TreeThreadAffinityGuard] |
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// Deliberately outside any namespace: this is applied to the assembly, and the attribute has to be |
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// nameable from the assembly-level attribute list. |
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/// <summary> |
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/// Fails any test that mutated a displayed tree from a thread other than the tree's owner. |
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/// </summary> |
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/// <remarks> |
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/// The affinity check records into <see cref="TreeThreadAffinity.Violations"/> instead of relying |
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/// on a throw, because tree mutation happens inside callers that catch Exception - the background |
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/// decompile turns any exception a node raises into text in the output pane. A throw there is |
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/// swallowed and the run still passes, so something has to read the collector, and it has to be |
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/// per test: an assembly-level teardown failure is reported but does not fail the run or change |
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/// the exit code. Debug builds only - the check compiles away in release, where the collector |
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/// stays empty and this is a no-op. |
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/// |
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/// A fixture that provokes violations on purpose clears the collector in its own |
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/// <c>[TearDown]</c>, which runs before this. |
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/// </remarks> |
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[AttributeUsage(AttributeTargets.Assembly)] |
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public sealed class TreeThreadAffinityGuardAttribute : Attribute, ITestAction |
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{ |
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public ActionTargets Targets => ActionTargets.Test; |
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public void BeforeTest(ITest test) |
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{ |
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TreeThreadAffinity.Clear(); |
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} |
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public void AfterTest(ITest test) |
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{ |
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var violations = TreeThreadAffinity.Violations; |
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if (violations.Count == 0) |
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return; |
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TreeThreadAffinity.Clear(); |
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Assert.Fail($"{violations.Count} tree thread-affinity violation(s) were recorded while this test ran:" |
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+ Environment.NewLine |
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+ string.Join(Environment.NewLine, violations.Select(v => v.ToString()))); |
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} |
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}
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