SEBWIN-220: Completed basic set of unit tests for ConfigurationOperation.

SafeExamBrowser.Configuration/ResourceLoader.cs

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * 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;
+using SafeExamBrowser.Contracts.Configuration;
+
+namespace SafeExamBrowser.Configuration
+{
+	public class ResourceLoader : IResourceLoader
+	{
+		public bool IsHtmlResource(Uri resource)
+		{
+			// TODO
+			return false;
+		}
+	}
+}

SafeExamBrowser.Configuration/SafeExamBrowser.Configuration.csproj

@@ -52,6 +52,7 @@
     <Reference Include="Microsoft.CSharp" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ResourceLoader.cs" />
     <Compile Include="SessionData.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="ConfigurationRepository.cs" />

SafeExamBrowser.Contracts/Configuration/IResourceLoader.cs

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * 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;
+
+namespace SafeExamBrowser.Contracts.Configuration
+{
+	/// <summary>
+	/// Loads configuration data from various sources (e.g. the internet) and provides related resource handling functionality.
+	/// </summary>
+	public interface IResourceLoader
+	{
+		/// <summary>
+		/// Indicates whether the given <see cref="Uri"/> identifies a HTML resource.
+		/// </summary>
+		bool IsHtmlResource(Uri resource);
+	}
+}

SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj

@@ -94,6 +94,7 @@
     <Compile Include="Communication\Data\SimpleResponsePurport.cs" />
     <Compile Include="Communication\Data\SimpleResponse.cs" />
     <Compile Include="Configuration\ClientConfiguration.cs" />
+    <Compile Include="Configuration\IResourceLoader.cs" />
     <Compile Include="Configuration\LoadStatus.cs" />
     <Compile Include="Configuration\RuntimeInfo.cs" />
     <Compile Include="Configuration\ISessionData.cs" />

SafeExamBrowser.Runtime.UnitTests/Behaviour/Operations/ConfigurationOperationTests.cs

@@ -11,7 +11,10 @@ using System.IO;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Moq;
 using SafeExamBrowser.Contracts.Behaviour.OperationModel;
+using SafeExamBrowser.Contracts.Communication.Data;
+using SafeExamBrowser.Contracts.Communication.Events;
 using SafeExamBrowser.Contracts.Communication.Hosts;
+using SafeExamBrowser.Contracts.Communication.Proxies;
 using SafeExamBrowser.Contracts.Configuration;
 using SafeExamBrowser.Contracts.Configuration.Settings;
 using SafeExamBrowser.Contracts.I18n;
@@ -26,12 +29,13 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 	[TestClass]
 	public class ConfigurationOperationTests
 	{
-		private RuntimeInfo info;
 		private Mock<ILogger> logger;
 		private Mock<IMessageBox> messageBox;
 		private Mock<IPasswordDialog> passwordDialog;
 		private Mock<IConfigurationRepository> repository;
+		private Mock<IResourceLoader> resourceLoader;
 		private Mock<IRuntimeHost> runtimeHost;
+		private RuntimeInfo runtimeInfo;
 		private Settings settings;
 		private Mock<IText> text;
 		private Mock<IUserInterfaceFactory> uiFactory;
@@ -40,19 +44,22 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		[TestInitialize]
 		public void Initialize()
 		{
-			info = new RuntimeInfo();
 			logger = new Mock<ILogger>();
 			messageBox = new Mock<IMessageBox>();
 			passwordDialog = new Mock<IPasswordDialog>();
 			repository = new Mock<IConfigurationRepository>();
+			resourceLoader = new Mock<IResourceLoader>();
 			runtimeHost = new Mock<IRuntimeHost>();
+			runtimeInfo = new RuntimeInfo();
 			settings = new Settings();
 			text = new Mock<IText>();
 			uiFactory = new Mock<IUserInterfaceFactory>();
 
-			info.AppDataFolder = @"C:\Not\Really\AppData";
+			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
-			info.DefaultSettingsFileName = "SettingsDummy.txt";
+
-			info.ProgramDataFolder = @"C:\Not\Really\ProgramData";
+			runtimeInfo.AppDataFolder = @"C:\Not\Really\AppData";
+			runtimeInfo.DefaultSettingsFileName = "SettingsDummy.txt";
+			runtimeInfo.ProgramDataFolder = @"C:\Not\Really\ProgramData";
 
 			uiFactory.Setup(f => f.CreatePasswordDialog(It.IsAny<string>(), It.IsAny<string>())).Returns(passwordDialog.Object);
 		}
@@ -63,13 +70,12 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 			var url = @"http://www.safeexambrowser.org/whatever.seb";
 			var location = Path.GetDirectoryName(GetType().Assembly.Location);
 
-			info.ProgramDataFolder = location;
+			runtimeInfo.ProgramDataFolder = location;
-			info.AppDataFolder = location;
+			runtimeInfo.AppDataFolder = location;
 
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
 			sut.Perform();
 
 			var resource = new Uri(url);
@@ -82,13 +88,12 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		{
 			var location = Path.GetDirectoryName(GetType().Assembly.Location);
 
-			info.ProgramDataFolder = location;
+			runtimeInfo.ProgramDataFolder = location;
-			info.AppDataFolder = $@"{location}\WRONG";
+			runtimeInfo.AppDataFolder = $@"{location}\WRONG";
 
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 			sut.Perform();
 
 			var resource = new Uri(Path.Combine(location, "SettingsDummy.txt"));
@@ -101,12 +106,11 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		{
 			var location = Path.GetDirectoryName(GetType().Assembly.Location);
 
-			info.AppDataFolder = location;
+			runtimeInfo.AppDataFolder = location;
 
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 			sut.Perform();
 
 			var resource = new Uri(Path.Combine(location, "SettingsDummy.txt"));
@@ -117,7 +121,7 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		[TestMethod]
 		public void MustFallbackToDefaultsAsLastPrio()
 		{
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 			sut.Perform();
 
 			repository.Verify(r => r.LoadDefaultSettings(), Times.Once);
@@ -126,12 +130,11 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		[TestMethod]
 		public void MustAbortIfWishedByUser()
 		{
-			info.ProgramDataFolder = Path.GetDirectoryName(GetType().Assembly.Location);
+			runtimeInfo.ProgramDataFolder = Path.GetDirectoryName(GetType().Assembly.Location);
 			messageBox.Setup(m => m.Show(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<MessageBoxAction>(), It.IsAny<MessageBoxIcon>())).Returns(MessageBoxResult.Yes);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 
 			var result = sut.Perform();
 
@@ -142,10 +145,9 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		public void MustNotAbortIfNotWishedByUser()
 		{
 			messageBox.Setup(m => m.Show(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<MessageBoxAction>(), It.IsAny<MessageBoxIcon>())).Returns(MessageBoxResult.No);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 
 			var result = sut.Perform();
 
@@ -156,10 +158,9 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		public void MustNotAllowToAbortIfNotInConfigureClientMode()
 		{
 			settings.ConfigurationMode = ConfigurationMode.Exam;
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 			sut.Perform();
 
 			messageBox.Verify(m => m.Show(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<MessageBoxAction>(), It.IsAny<MessageBoxIcon>()), Times.Never);
@@ -170,10 +171,10 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		{
 			repository.Setup(r => r.LoadDefaultSettings());
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, null);
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
 			sut.Perform();
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new string[] { });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new string[] { });
 			sut.Perform();
 
 			repository.Verify(r => r.LoadDefaultSettings(), Times.Exactly(2));
@@ -184,7 +185,7 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 		{
 			var uri = @"an/invalid\uri.'*%yolo/()你好";
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", uri });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", uri });
 			sut.Perform();
 		}
 
@@ -195,10 +196,9 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 			var url = @"http://www.safeexambrowser.org/whatever.seb";
 
 			passwordDialog.Setup(d => d.Show(null)).Returns(result);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.AdminPasswordNeeded);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
 			sut.Perform();
 
 			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Exactly(5));
@@ -211,10 +211,9 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 			var url = @"http://www.safeexambrowser.org/whatever.seb";
 
 			passwordDialog.Setup(d => d.Show(null)).Returns(result);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
 			sut.Perform();
 
 			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Exactly(5));
@@ -228,15 +227,14 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 			var url = @"http://www.safeexambrowser.org/whatever.seb";
 
 			passwordDialog.Setup(d => d.Show(null)).Returns(result);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.AdminPasswordNeeded);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), password, null)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
 			sut.Perform();
 
-			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Exactly(1));
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Once);
-			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), password, null), Times.Exactly(1));
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), password, null), Times.Once);
 		}
 
 		[TestMethod]
@@ -247,15 +245,212 @@ namespace SafeExamBrowser.Runtime.UnitTests.Behaviour.Operations
 			var url = @"http://www.safeexambrowser.org/whatever.seb";
 
 			passwordDialog.Setup(d => d.Show(null)).Returns(result);
-			repository.SetupGet(r => r.CurrentSettings).Returns(settings);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
 			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, password)).Returns(LoadStatus.Success);
 
-			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, runtimeHost.Object, info, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
 			sut.Perform();
 
-			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Exactly(1));
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Once);
-			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, password), Times.Exactly(1));
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, password), Times.Once);
+		}
+
+		[TestMethod]
+		public void MustAbortAskingForAdminPasswordIfDecidedByUser()
+		{
+			var dialogResult = new PasswordDialogResultStub { Success = false };
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			passwordDialog.Setup(d => d.Show(null)).Returns(dialogResult);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.AdminPasswordNeeded);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Aborted, result);
+		}
+
+		[TestMethod]
+		public void MustAbortAskingForSettingsPasswordIfDecidedByUser()
+		{
+			var dialogResult = new PasswordDialogResultStub { Success = false };
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			passwordDialog.Setup(d => d.Show(null)).Returns(dialogResult);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Aborted, result);
+		}
+
+		[TestMethod]
+		public void MustAllowEnteringBothPasswords()
+		{
+			var adminPassword = "xyz";
+			var adminResult = new PasswordDialogResultStub { Password = adminPassword, Success = true };
+			var adminCallback = new Action(() => passwordDialog.Setup(d => d.Show(null)).Returns(adminResult));
+			var settingsPassword = "abc";
+			var settingsResult = new PasswordDialogResultStub { Password = settingsPassword, Success = true };
+			var settingsCallback = new Action(() => passwordDialog.Setup(d => d.Show(null)).Returns(settingsResult));
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded).Callback(settingsCallback);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, settingsPassword)).Returns(LoadStatus.AdminPasswordNeeded).Callback(adminCallback);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), adminPassword, settingsPassword)).Returns(LoadStatus.Success);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut.Perform();
+
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, null), Times.Once);
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), null, settingsPassword), Times.Once);
+			repository.Verify(r => r.LoadSettings(It.IsAny<Uri>(), adminPassword, settingsPassword), Times.Once);
+		}
+
+		[TestMethod]
+		public void MustRequestPasswordViaDialogOnDefaultDesktop()
+		{
+			var clientProxy = new Mock<IClientProxy>();
+			var session = new Mock<ISessionData>();
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			passwordDialog.Setup(d => d.Show(null)).Returns(new PasswordDialogResultStub { Success = true });
+			repository.SetupGet(r => r.CurrentSession).Returns(session.Object);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
+			session.SetupGet(r => r.ClientProxy).Returns(clientProxy.Object);
+			settings.KioskMode = KioskMode.DisableExplorerShell;
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut.Perform();
+
+			clientProxy.Verify(c => c.RequestPassword(It.IsAny<PasswordRequestPurpose>(), It.IsAny<Guid>()), Times.Never);
+			passwordDialog.Verify(p => p.Show(null), Times.AtLeastOnce);
+			session.VerifyGet(s => s.ClientProxy, Times.Never);
+		}
+
+		[TestMethod]
+		public void MustRequestPasswordViaClientDuringReconfigurationOnNewDesktop()
+		{
+			var clientProxy = new Mock<IClientProxy>();
+			var passwordReceived = new Action<PasswordRequestPurpose, Guid>((p, id) =>
+			{
+				runtimeHost.Raise(r => r.PasswordReceived += null, new PasswordEventArgs { RequestId = id });
+			});
+			var session = new Mock<ISessionData>();
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			clientProxy.Setup(c => c.RequestPassword(It.IsAny<PasswordRequestPurpose>(), It.IsAny<Guid>())).Callback(passwordReceived);
+			passwordDialog.Setup(d => d.Show(null)).Returns(new PasswordDialogResultStub { Success = true });
+			repository.SetupGet(r => r.CurrentSession).Returns(session.Object);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
+			session.SetupGet(r => r.ClientProxy).Returns(clientProxy.Object);
+			settings.KioskMode = KioskMode.CreateNewDesktop;
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+			sut.Perform();
+
+			clientProxy.Verify(c => c.RequestPassword(It.IsAny<PasswordRequestPurpose>(), It.IsAny<Guid>()), Times.AtLeastOnce);
+			passwordDialog.Verify(p => p.Show(null), Times.Never);
+			session.VerifyGet(s => s.ClientProxy, Times.AtLeastOnce);
+		}
+
+		[TestMethod]
+		public void MustAbortAskingForPasswordViaClientIfDecidedByUser()
+		{
+			var clientProxy = new Mock<IClientProxy>();
+			var passwordReceived = new Action<PasswordRequestPurpose, Guid>((p, id) =>
+			{
+				runtimeHost.Raise(r => r.PasswordReceived += null, new PasswordEventArgs { RequestId = id, Success = false });
+			});
+			var session = new Mock<ISessionData>();
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			clientProxy.Setup(c => c.RequestPassword(It.IsAny<PasswordRequestPurpose>(), It.IsAny<Guid>())).Callback(passwordReceived);
+			passwordDialog.Setup(d => d.Show(null)).Returns(new PasswordDialogResultStub { Success = true });
+			repository.SetupGet(r => r.CurrentSession).Returns(session.Object);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.SettingsPasswordNeeded);
+			session.SetupGet(r => r.ClientProxy).Returns(clientProxy.Object);
+			settings.KioskMode = KioskMode.CreateNewDesktop;
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Aborted, result);
+		}
+
+		[TestMethod]
+		public void MustHandleInvalidData()
+		{
+			var url = @"http://www.safeexambrowser.org/whatever.seb";
+
+			resourceLoader.Setup(r => r.IsHtmlResource(It.IsAny<Uri>())).Returns(false);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.InvalidData);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Failed, result);
+		}
+
+		[TestMethod]
+		public void MustHandleHtmlAsInvalidData()
+		{
+			var url = "http://www.blubb.org/some/resource.html";
+
+			resourceLoader.Setup(r => r.IsHtmlResource(It.IsAny<Uri>())).Returns(true);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.InvalidData);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, new[] { "blubb.exe", url });
+
+			var result = sut.Perform();
+
+			Assert.AreEqual(OperationResult.Success, result);
+			Assert.AreEqual(url, settings.Browser.StartUrl);
+		}
+
+		[TestMethod]
+		public void MustReconfigureSuccessfullyWithCorrectUri()
+		{
+			var location = Path.GetDirectoryName(GetType().Assembly.Location);
+			var resource = new Uri(Path.Combine(location, "SettingsDummy.txt"));
+
+			repository.SetupGet(r => r.ReconfigurationFilePath).Returns(resource.AbsolutePath);
+			repository.Setup(r => r.LoadSettings(It.Is<Uri>(u => u.Equals(resource)), null, null)).Returns(LoadStatus.Success);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
+
+			var result = sut.Repeat();
+
+			repository.Verify(r => r.LoadSettings(It.Is<Uri>(u => u.Equals(resource)), null, null), Times.Once);
+
+			Assert.AreEqual(OperationResult.Success, result);
+		}
+
+		[TestMethod]
+		public void MustFailToReconfigureWithInvalidUri()
+		{
+			var resource = new Uri("file:///C:/does/not/exist.txt");
+
+			repository.SetupGet(r => r.ReconfigurationFilePath).Returns(null as string);
+			repository.Setup(r => r.LoadSettings(It.IsAny<Uri>(), null, null)).Returns(LoadStatus.Success);
+
+			sut = new ConfigurationOperation(repository.Object, logger.Object, messageBox.Object, resourceLoader.Object, runtimeHost.Object, runtimeInfo, text.Object, uiFactory.Object, null);
+
+			var result = sut.Repeat();
+
+			repository.Verify(r => r.LoadSettings(It.Is<Uri>(u => u.Equals(resource)), null, null), Times.Never);
+			Assert.AreEqual(OperationResult.Failed, result);
+
+			repository.SetupGet(r => r.ReconfigurationFilePath).Returns(resource.AbsolutePath);
+			result = sut.Repeat();
+
+			repository.Verify(r => r.LoadSettings(It.Is<Uri>(u => u.Equals(resource)), null, null), Times.Never);
+			Assert.AreEqual(OperationResult.Failed, result);
 		}
 	}
 }

SafeExamBrowser.Runtime/Behaviour/Operations/ConfigurationOperation.cs

@@ -27,6 +27,7 @@ namespace SafeExamBrowser.Runtime.Behaviour.Operations
 		private IConfigurationRepository repository;
 		private ILogger logger;
 		private IMessageBox messageBox;
+		private IResourceLoader resourceLoader;
 		private IRuntimeHost runtimeHost;
 		private RuntimeInfo runtimeInfo;
 		private IText text;
@@ -39,6 +40,7 @@ namespace SafeExamBrowser.Runtime.Behaviour.Operations
 			IConfigurationRepository repository,
 			ILogger logger,
 			IMessageBox messageBox,
+			IResourceLoader resourceLoader,
 			IRuntimeHost runtimeHost,
 			RuntimeInfo runtimeInfo,
 			IText text,
@@ -48,11 +50,12 @@ namespace SafeExamBrowser.Runtime.Behaviour.Operations
 			this.repository = repository;
 			this.logger = logger;
 			this.messageBox = messageBox;
-			this.commandLineArgs = commandLineArgs;
+			this.resourceLoader = resourceLoader;
 			this.runtimeHost = runtimeHost;
 			this.runtimeInfo = runtimeInfo;
 			this.text = text;
 			this.uiFactory = uiFactory;
+			this.commandLineArgs = commandLineArgs;
 		}
 
 		public OperationResult Perform()
@@ -215,11 +218,11 @@ namespace SafeExamBrowser.Runtime.Behaviour.Operations
 
 		private void HandleInvalidData(ref LoadStatus status, Uri uri)
 		{
-			if (IsHtmlPage(uri))
+			if (resourceLoader.IsHtmlResource(uri))
 			{
 				repository.LoadDefaultSettings();
 				repository.CurrentSettings.Browser.StartUrl = uri.AbsoluteUri;
-				logger.Info($"The specified URI '{uri.AbsoluteUri}' appears to point to a HTML page, setting it as startup URL.");
+				logger.Info($"The specified URI '{uri.AbsoluteUri}' appears to point to a HTML resource, setting it as startup URL.");
 
 				status = LoadStatus.Success;
 			}
@@ -229,13 +232,6 @@ namespace SafeExamBrowser.Runtime.Behaviour.Operations
 			}
 		}
 
-		private bool IsHtmlPage(Uri uri)
-		{
-			// TODO
-
-			return false;
-		}
-
 		private bool TryInitializeSettingsUri(out Uri uri)
 		{
 			var path = string.Empty;

SafeExamBrowser.Runtime/CompositionRoot.cs

@@ -54,6 +54,7 @@ namespace SafeExamBrowser.Runtime
 			var desktop = new Desktop(new ModuleLogger(logger, typeof(Desktop)));
 			var processFactory = new ProcessFactory(desktop, new ModuleLogger(logger, typeof(ProcessFactory)));
 			var proxyFactory = new ProxyFactory(new ProxyObjectFactory(), logger);
+			var resourceLoader = new ResourceLoader();
 			var runtimeHost = new RuntimeHost(runtimeInfo.RuntimeAddress, configuration, new HostObjectFactory(), new ModuleLogger(logger, typeof(RuntimeHost)));
 			var serviceProxy = new ServiceProxy(runtimeInfo.ServiceAddress, new ProxyObjectFactory(), new ModuleLogger(logger, typeof(ServiceProxy)));
 
@@ -63,7 +64,7 @@ namespace SafeExamBrowser.Runtime
 			bootstrapOperations.Enqueue(new I18nOperation(logger, text));
 			bootstrapOperations.Enqueue(new CommunicationOperation(runtimeHost, logger));
 
-			sessionOperations.Enqueue(new ConfigurationOperation(configuration, logger, messageBox, runtimeHost, runtimeInfo, text, uiFactory, args));
+			sessionOperations.Enqueue(new ConfigurationOperation(configuration, logger, messageBox, resourceLoader, runtimeHost, runtimeInfo, text, uiFactory, args));
 			sessionOperations.Enqueue(new SessionInitializationOperation(configuration, logger, runtimeHost));
 			sessionOperations.Enqueue(new ServiceOperation(configuration, logger, serviceProxy, text));
 			sessionOperations.Enqueue(new ClientTerminationOperation(configuration, logger, processFactory, proxyFactory, runtimeHost, TEN_SECONDS));