264 lines
8.6 KiB
C#
264 lines
8.6 KiB
C#
/*
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* Copyright (c) 2024 ETH Zürich, IT Services
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using System.Threading;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using Moq;
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using SafeExamBrowser.Communication.Contracts.Events;
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using SafeExamBrowser.Communication.Contracts.Hosts;
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using SafeExamBrowser.Configuration.Contracts;
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using SafeExamBrowser.Core.Contracts.OperationModel;
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using SafeExamBrowser.Lockdown.Contracts;
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using SafeExamBrowser.Logging.Contracts;
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using SafeExamBrowser.Settings;
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using SafeExamBrowser.Settings.Logging;
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namespace SafeExamBrowser.Service.UnitTests
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{
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[TestClass]
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public class ServiceControllerTests
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{
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private Mock<ILogger> logger;
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private Mock<Func<string, ILogObserver>> logWriterFactory;
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private Mock<IOperationSequence> bootstrapSequence;
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private SessionContext sessionContext;
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private Mock<IOperationSequence> sessionSequence;
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private Mock<IServiceHost> serviceHost;
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private Mock<ISystemConfigurationUpdate> systemConfigurationUpdate;
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private ServiceController sut;
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[TestInitialize]
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public void Initialize()
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{
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logger = new Mock<ILogger>();
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logWriterFactory = new Mock<Func<string, ILogObserver>>();
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bootstrapSequence = new Mock<IOperationSequence>();
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sessionContext = new SessionContext();
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sessionSequence = new Mock<IOperationSequence>();
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serviceHost = new Mock<IServiceHost>();
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systemConfigurationUpdate = new Mock<ISystemConfigurationUpdate>();
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logWriterFactory.Setup(f => f.Invoke(It.IsAny<string>())).Returns(new Mock<ILogObserver>().Object);
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sut = new ServiceController(
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logger.Object,
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logWriterFactory.Object,
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bootstrapSequence.Object,
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sessionSequence.Object,
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serviceHost.Object,
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sessionContext,
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systemConfigurationUpdate.Object);
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}
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[TestMethod]
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public void Communication_MustStartNewSessionUponRequest()
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{
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var args = new SessionStartEventArgs { Configuration = new ServiceConfiguration { SessionId = Guid.NewGuid() } };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStartRequested += null, args);
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sessionSequence.Verify(s => s.TryPerform(), Times.Once);
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Assert.IsNotNull(sessionContext.Configuration);
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Assert.AreEqual(args.Configuration.SessionId, sessionContext.Configuration.SessionId);
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}
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[TestMethod]
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public void Communication_MustInitializeSessionLogging()
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{
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var args = new SessionStartEventArgs
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{
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Configuration = new ServiceConfiguration
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{
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AppConfig = new AppConfig { ServiceLogFilePath = "Test.log" },
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SessionId = Guid.NewGuid(),
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Settings = new AppSettings { LogLevel = LogLevel.Warning }
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}
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};
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStartRequested += null, args);
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logger.VerifySet(l => l.LogLevel = It.Is<LogLevel>(ll => ll == args.Configuration.Settings.LogLevel), Times.Once);
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}
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[TestMethod]
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public void Communication_MustNotAllowNewSessionDuringActiveSession()
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{
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var args = new SessionStartEventArgs { Configuration = new ServiceConfiguration { SessionId = Guid.NewGuid() } };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionContext.Configuration = new ServiceConfiguration { SessionId = Guid.NewGuid() };
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sessionContext.IsRunning = true;
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStartRequested += null, args);
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sessionSequence.Verify(s => s.TryPerform(), Times.Never);
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Assert.AreNotEqual(args.Configuration.SessionId, sessionContext.Configuration.SessionId);
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}
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[TestMethod]
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public void Communication_MustNotFailIfNoValidSessionData()
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{
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var args = new SessionStartEventArgs { Configuration = null };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStartRequested += null, args);
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sessionSequence.Verify(s => s.TryPerform(), Times.Once);
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Assert.IsNull(sessionContext.Configuration);
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}
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[TestMethod]
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public void Communication_MustStopActiveSessionUponRequest()
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{
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var args = new SessionStopEventArgs { SessionId = Guid.NewGuid() };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionContext.Configuration = new ServiceConfiguration { SessionId = args.SessionId };
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sessionContext.IsRunning = true;
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStopRequested += null, args);
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sessionSequence.Verify(s => s.TryRevert(), Times.Once);
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}
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[TestMethod]
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public void Communication_MustNotStopSessionWithWrongId()
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{
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var args = new SessionStopEventArgs { SessionId = Guid.NewGuid() };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionContext.Configuration = new ServiceConfiguration { SessionId = Guid.NewGuid() };
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sessionContext.IsRunning = true;
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStopRequested += null, args);
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sessionSequence.Verify(s => s.TryRevert(), Times.Never);
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}
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[TestMethod]
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public void Communication_MustNotStopSessionWithoutActiveSession()
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{
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var args = new SessionStopEventArgs { SessionId = Guid.NewGuid() };
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionContext.IsRunning = false;
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sut.TryStart();
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serviceHost.Raise(h => h.SessionStopRequested += null, args);
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sessionSequence.Verify(s => s.TryRevert(), Times.Never);
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}
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[TestMethod]
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public void Communication_MustStartSystemConfigurationUpdate()
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{
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var sync = new AutoResetEvent(false);
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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systemConfigurationUpdate.Setup(u => u.ExecuteAsync()).Callback(() => sync.Set());
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sut.TryStart();
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serviceHost.Raise(h => h.SystemConfigurationUpdateRequested += null);
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sync.WaitOne();
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systemConfigurationUpdate.Verify(u => u.Execute(), Times.Never);
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systemConfigurationUpdate.Verify(u => u.ExecuteAsync(), Times.Once);
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}
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[TestMethod]
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public void Start_MustOnlyPerformBootstrapSequence()
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{
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bootstrapSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionSequence.Setup(b => b.TryPerform()).Returns(OperationResult.Success);
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sessionContext.Configuration = null;
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var success = sut.TryStart();
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bootstrapSequence.Verify(b => b.TryPerform(), Times.Once);
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bootstrapSequence.Verify(b => b.TryRevert(), Times.Never);
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sessionSequence.Verify(b => b.TryPerform(), Times.Never);
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sessionSequence.Verify(b => b.TryRevert(), Times.Never);
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Assert.IsTrue(success);
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}
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[TestMethod]
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public void Stop_MustRevertSessionThenBootstrapSequence()
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{
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var order = 0;
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var bootstrap = 0;
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var session = 0;
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sut.TryStart();
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bootstrapSequence.Reset();
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sessionSequence.Reset();
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bootstrapSequence.Setup(b => b.TryRevert()).Returns(OperationResult.Success).Callback(() => bootstrap = ++order);
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sessionSequence.Setup(b => b.TryRevert()).Returns(OperationResult.Success).Callback(() => session = ++order);
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sessionContext.Configuration = new ServiceConfiguration();
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sessionContext.IsRunning = true;
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sut.Terminate();
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bootstrapSequence.Verify(b => b.TryPerform(), Times.Never);
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bootstrapSequence.Verify(b => b.TryRevert(), Times.Once);
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sessionSequence.Verify(b => b.TryPerform(), Times.Never);
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sessionSequence.Verify(b => b.TryRevert(), Times.Once);
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Assert.AreEqual(1, session);
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Assert.AreEqual(2, bootstrap);
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}
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[TestMethod]
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public void Stop_MustNotRevertSessionSequenceIfNoSessionRunning()
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{
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var order = 0;
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var bootstrap = 0;
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var session = 0;
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sut.TryStart();
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bootstrapSequence.Reset();
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sessionSequence.Reset();
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bootstrapSequence.Setup(b => b.TryRevert()).Returns(OperationResult.Success).Callback(() => bootstrap = ++order);
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sessionSequence.Setup(b => b.TryRevert()).Returns(OperationResult.Success).Callback(() => session = ++order);
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sessionContext.Configuration = null;
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sut.Terminate();
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bootstrapSequence.Verify(b => b.TryPerform(), Times.Never);
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bootstrapSequence.Verify(b => b.TryRevert(), Times.Once);
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sessionSequence.Verify(b => b.TryPerform(), Times.Never);
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sessionSequence.Verify(b => b.TryRevert(), Times.Never);
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Assert.AreEqual(0, session);
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Assert.AreEqual(1, bootstrap);
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}
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}
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}
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