Restore SEBPatch
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/*
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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.Tasks;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using Moq;
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using SafeExamBrowser.Communication.Contracts;
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using SafeExamBrowser.Communication.Contracts.Data;
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using SafeExamBrowser.Communication.Contracts.Hosts;
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using SafeExamBrowser.Communication.Contracts.Proxies;
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using SafeExamBrowser.Configuration.Contracts;
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using SafeExamBrowser.Core.Contracts.OperationModel;
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using SafeExamBrowser.Logging.Contracts;
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using SafeExamBrowser.Runtime.Operations;
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using SafeExamBrowser.Settings;
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using SafeExamBrowser.WindowsApi.Contracts;
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namespace SafeExamBrowser.Runtime.UnitTests.Operations
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{
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[TestClass]
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public class ClientOperationTests
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{
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private Action clientReady;
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private Action terminated;
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private AppConfig appConfig;
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private Mock<IClientProxy> proxy;
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private Mock<ILogger> logger;
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private Mock<IProcess> process;
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private Mock<IProcessFactory> processFactory;
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private Mock<IProxyFactory> proxyFactory;
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private Mock<IRuntimeHost> runtimeHost;
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private SessionConfiguration session;
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private SessionContext sessionContext;
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private AppSettings settings;
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private ClientOperation sut;
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[TestInitialize]
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public void Initialize()
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{
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appConfig = new AppConfig();
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clientReady = new Action(() => runtimeHost.Raise(h => h.ClientReady += null));
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logger = new Mock<ILogger>();
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process = new Mock<IProcess>();
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processFactory = new Mock<IProcessFactory>();
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proxy = new Mock<IClientProxy>();
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proxyFactory = new Mock<IProxyFactory>();
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runtimeHost = new Mock<IRuntimeHost>();
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session = new SessionConfiguration();
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sessionContext = new SessionContext();
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settings = new AppSettings();
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terminated = new Action(() =>
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{
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runtimeHost.Raise(h => h.ClientDisconnected += null);
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process.Raise(p => p.Terminated += null, 0);
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});
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appConfig.ClientLogFilePath = "";
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session.AppConfig = appConfig;
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session.Settings = settings;
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sessionContext.Current = session;
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sessionContext.Next = session;
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proxyFactory.Setup(f => f.CreateClientProxy(It.IsAny<string>(), It.IsAny<Interlocutor>())).Returns(proxy.Object);
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sut = new ClientOperation(logger.Object, processFactory.Object, proxyFactory.Object, runtimeHost.Object, sessionContext, 0);
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}
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[TestMethod]
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public void Perform_MustStartClient()
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{
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var result = default(OperationResult);
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var response = new AuthenticationResponse { ProcessId = 1234 };
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var communication = new CommunicationResult<AuthenticationResponse>(true, response);
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process.SetupGet(p => p.Id).Returns(response.ProcessId);
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(clientReady);
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proxy.Setup(p => p.RequestAuthentication()).Returns(communication);
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proxy.Setup(p => p.Connect(It.IsAny<Guid>(), true)).Returns(true);
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result = sut.Perform();
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Assert.AreEqual(process.Object, sessionContext.ClientProcess);
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Assert.AreEqual(proxy.Object, sessionContext.ClientProxy);
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Assert.AreEqual(OperationResult.Success, result);
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}
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[TestMethod]
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public void Perform_MustFailStartupImmediatelyIfClientTerminates()
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{
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const int ONE_SECOND = 1000;
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var after = default(DateTime);
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var before = default(DateTime);
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var result = default(OperationResult);
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var terminateClient = new Action(() => Task.Delay(100).ContinueWith(_ => process.Raise(p => p.Terminated += null, 0)));
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(terminateClient);
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sut = new ClientOperation(logger.Object, processFactory.Object, proxyFactory.Object, runtimeHost.Object, sessionContext, ONE_SECOND);
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before = DateTime.Now;
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result = sut.Perform();
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after = DateTime.Now;
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Assert.IsTrue(after - before < new TimeSpan(0, 0, ONE_SECOND));
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Assert.AreEqual(OperationResult.Failed, result);
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}
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[TestMethod]
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public void Perform_MustFailStartupIfConnectionToClientNotEstablished()
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{
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var result = default(OperationResult);
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(clientReady);
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proxy.Setup(p => p.Connect(It.IsAny<Guid>(), true)).Returns(false);
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result = sut.Perform();
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Assert.IsNotNull(sessionContext.ClientProcess);
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Assert.IsNotNull(sessionContext.ClientProxy);
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Assert.AreEqual(OperationResult.Failed, result);
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}
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[TestMethod]
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public void Perform_MustFailStartupIfAuthenticationNotSuccessful()
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{
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var result = default(OperationResult);
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var response = new AuthenticationResponse { ProcessId = -1 };
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var communication = new CommunicationResult<AuthenticationResponse>(true, response);
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process.SetupGet(p => p.Id).Returns(1234);
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(clientReady);
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proxy.Setup(p => p.RequestAuthentication()).Returns(communication);
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proxy.Setup(p => p.Connect(It.IsAny<Guid>(), true)).Returns(true);
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result = sut.Perform();
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Assert.IsNotNull(sessionContext.ClientProcess);
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Assert.IsNotNull(sessionContext.ClientProxy);
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Assert.AreEqual(OperationResult.Failed, result);
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}
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[TestMethod]
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public void Repeat_MustStartClient()
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{
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var result = default(OperationResult);
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var response = new AuthenticationResponse { ProcessId = 1234 };
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var communication = new CommunicationResult<AuthenticationResponse>(true, response);
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process.SetupGet(p => p.Id).Returns(response.ProcessId);
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(clientReady);
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proxy.Setup(p => p.RequestAuthentication()).Returns(communication);
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proxy.Setup(p => p.Connect(It.IsAny<Guid>(), true)).Returns(true);
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result = sut.Repeat();
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Assert.AreEqual(process.Object, sessionContext.ClientProcess);
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Assert.AreEqual(proxy.Object, sessionContext.ClientProxy);
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Assert.AreEqual(OperationResult.Success, result);
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}
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[TestMethod]
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public void Revert_MustStopClient()
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{
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proxy.Setup(p => p.Disconnect()).Callback(terminated);
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PerformNormally();
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sut.Revert();
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proxy.Verify(p => p.InitiateShutdown(), Times.Once);
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proxy.Verify(p => p.Disconnect(), Times.Once);
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process.Verify(p => p.TryKill(It.IsAny<int>()), Times.Never);
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Assert.IsNull(sessionContext.ClientProcess);
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Assert.IsNull(sessionContext.ClientProxy);
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}
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[TestMethod]
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public void Revert_MustKillClientIfStoppingFailed()
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{
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process.Setup(p => p.TryKill(It.IsAny<int>())).Callback(() => process.SetupGet(p => p.HasTerminated).Returns(true));
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PerformNormally();
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sut.Revert();
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process.Verify(p => p.TryKill(It.IsAny<int>()), Times.AtLeastOnce);
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Assert.IsNull(sessionContext.ClientProcess);
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Assert.IsNull(sessionContext.ClientProxy);
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}
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[TestMethod]
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public void Revert_MustAttemptToKillFiveTimesThenAbort()
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{
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PerformNormally();
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sut.Revert();
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process.Verify(p => p.TryKill(It.IsAny<int>()), Times.Exactly(5));
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Assert.IsNotNull(sessionContext.ClientProcess);
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Assert.IsNotNull(sessionContext.ClientProxy);
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}
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[TestMethod]
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public void Revert_MustNotStopClientIfAlreadyTerminated()
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{
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process.SetupGet(p => p.HasTerminated).Returns(true);
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sut.Revert();
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proxy.Verify(p => p.InitiateShutdown(), Times.Never);
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proxy.Verify(p => p.Disconnect(), Times.Never);
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process.Verify(p => p.TryKill(It.IsAny<int>()), Times.Never);
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Assert.IsNull(sessionContext.ClientProcess);
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Assert.IsNull(sessionContext.ClientProxy);
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}
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private void PerformNormally()
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{
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var response = new AuthenticationResponse { ProcessId = 1234 };
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var communication = new CommunicationResult<AuthenticationResponse>(true, response);
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process.SetupGet(p => p.Id).Returns(response.ProcessId);
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processFactory.Setup(f => f.StartNew(It.IsAny<string>(), It.IsAny<string[]>())).Returns(process.Object).Callback(clientReady);
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proxy.Setup(p => p.RequestAuthentication()).Returns(communication);
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proxy.Setup(p => p.Connect(It.IsAny<Guid>(), true)).Returns(true);
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sut.Perform();
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}
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}
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}
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