Restore SEBPatch

SafeExamBrowser.Service.UnitTests/Operations/ServiceEventCleanupOperationTests.cs

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+/*
+ * Copyright (c) 2024 ETH Zürich, IT Services
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System.Threading;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using SafeExamBrowser.Core.Contracts.OperationModel;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.Service.Operations;
+
+namespace SafeExamBrowser.Service.UnitTests.Operations
+{
+	[TestClass]
+	public class ServiceEventCleanupOperationTests
+	{
+		private Mock<ILogger> logger;
+		private SessionContext sessionContext;
+		private ServiceEventCleanupOperation sut;
+
+		[TestInitialize]
+		public void Initialize()
+		{
+			logger = new Mock<ILogger>();
+			sessionContext = new SessionContext();
+
+			sut = new ServiceEventCleanupOperation(logger.Object, sessionContext);
+		}
+
+		[TestMethod]
+		public void Perform_MustDoNothing()
+		{
+			var serviceEvent = new EventWaitHandle(false, EventResetMode.AutoReset);
+
+			sessionContext.ServiceEvent = serviceEvent;
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Success, result);
+			Assert.AreSame(serviceEvent, sessionContext.ServiceEvent);
+		}
+
+		[TestMethod]
+		public void Revert_MustCloseEvent()
+		{
+			var serviceEvent = new EventStub();
+
+			sessionContext.ServiceEvent = serviceEvent;
+
+			var result = sut.Revert();
+
+			Assert.AreEqual(OperationResult.Success, result);
+			Assert.IsTrue(serviceEvent.IsClosed);
+		}
+
+		[TestMethod]
+		public void Revert_MustNotFailIfEventNull()
+		{
+			var result = sut.Revert();
+
+			Assert.AreEqual(OperationResult.Success, result);
+		}
+	}
+}