[Settings Tests] Migrate General Settings tests (#5753)

* added MSTest project

* migrated general settings tests

* enabled settings tests run in the build pipeline

* added tests

* move relay command class to separate file

* added a foldername parameter for general settings view model

src/core/Microsoft.PowerToys.Settings.UI.UnitTests/ViewModelTests/General.cs

@@ -0,0 +1,201 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.IO;
+using System.Text.Json;
+using Microsoft.PowerToys.Settings.UI.Lib;
+using Microsoft.PowerToys.Settings.UI.Lib.ViewModels;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace ViewModelTests
+{
+    [TestClass]
+    public class General
+    {
+        public const string generalSettings_file_name = "Test\\GenealSettings";
+
+        [TestInitialize]
+        public void Setup()
+        {
+            // initialize creation of test settings file.
+            GeneralSettings generalSettings = new GeneralSettings();
+            SettingsUtils.SaveSettings(generalSettings.ToJsonString(), generalSettings_file_name);
+        }
+
+        [TestCleanup]
+        public void CleanUp()
+        {
+            // delete folder created.
+            if (SettingsUtils.SettingsFolderExists(generalSettings_file_name))
+            {
+                DeleteFolder(generalSettings_file_name);
+            }
+        }
+
+        public void DeleteFolder(string powertoy)
+        {
+            Directory.Delete(Path.Combine(SettingsUtils.LocalApplicationDataFolder(), $"Microsoft\\PowerToys\\{powertoy}"), true);
+        }
+
+        [TestMethod]
+        public void IsElevated_ShouldUpdateRunasAdminStatusAttrs_WhenSuccessful()
+        {
+            // Arrange
+            Func<string, int> SendMockIPCConfigMSG = msg => { return 0; };
+            Func<string, int> SendRestartAdminIPCMessage = msg => { return 0; };
+            Func<string, int> SendCheckForUpdatesIPCMessage = msg => { return 0; };
+            GeneralViewModel viewModel = new GeneralViewModel(
+                "GeneralSettings_RunningAsAdminText",
+                "GeneralSettings_RunningAsUserText",
+                false,
+                false,
+                UpdateUIThemeMethod,
+                SendMockIPCConfigMSG,
+                SendRestartAdminIPCMessage,
+                SendCheckForUpdatesIPCMessage,
+                generalSettings_file_name);
+
+            Assert.AreEqual(viewModel.RunningAsUserDefaultText, viewModel.RunningAsText);
+            Assert.IsFalse(viewModel.IsElevated);
+
+            // Act
+            viewModel.IsElevated = true;
+
+            // Assert
+            Assert.AreEqual(viewModel.RunningAsAdminDefaultText, viewModel.RunningAsText);
+            Assert.IsTrue(viewModel.IsElevated);
+        }
+
+        [TestMethod]
+        public void Startup_ShouldEnableRunOnStartUp_WhenSuccessful()
+        {
+            // Assert
+            Func<string, int> SendMockIPCConfigMSG = msg =>
+            {
+                OutGoingGeneralSettings snd = JsonSerializer.Deserialize<OutGoingGeneralSettings>(msg);
+                Assert.IsTrue(snd.GeneralSettings.Startup);
+                return 0;
+            };
+
+            // Arrange
+            Func<string, int> SendRestartAdminIPCMessage = msg => { return 0; };
+            Func<string, int> SendCheckForUpdatesIPCMessage = msg => { return 0; };
+            GeneralViewModel viewModel = new GeneralViewModel(
+                "GeneralSettings_RunningAsAdminText",
+                "GeneralSettings_RunningAsUserText",
+                false,
+                false,
+                UpdateUIThemeMethod,
+                SendMockIPCConfigMSG,
+                SendRestartAdminIPCMessage,
+                SendCheckForUpdatesIPCMessage,
+                generalSettings_file_name);
+            Assert.IsFalse(viewModel.Startup);
+
+            // act
+            viewModel.Startup = true;
+        }
+
+        [TestMethod]
+        public void RunElevated_ShouldEnableAlwaysRunElevated_WhenSuccessful()
+        {
+            // Assert
+            Func<string, int> SendMockIPCConfigMSG = msg =>
+            {
+                OutGoingGeneralSettings snd = JsonSerializer.Deserialize<OutGoingGeneralSettings>(msg);
+                Assert.IsTrue(snd.GeneralSettings.RunElevated);
+                return 0;
+            };
+
+            Func<string, int> SendRestartAdminIPCMessage = msg => { return 0; };
+            Func<string, int> SendCheckForUpdatesIPCMessage = msg => { return 0; };
+
+            // Arrange
+            GeneralViewModel viewModel = new GeneralViewModel(
+                "GeneralSettings_RunningAsAdminText",
+                "GeneralSettings_RunningAsUserText",
+                false,
+                false,
+                UpdateUIThemeMethod,
+                SendMockIPCConfigMSG,
+                SendRestartAdminIPCMessage,
+                SendCheckForUpdatesIPCMessage,
+                generalSettings_file_name);
+
+            Assert.IsFalse(viewModel.RunElevated);
+
+            // act
+            viewModel.RunElevated = true;
+        }
+
+        [TestMethod]
+        public void IsLightThemeRadioButtonChecked_ShouldThemeToLight_WhenSuccessful()
+        {
+            // Arrange
+            GeneralViewModel viewModel = null;
+            // Assert
+            Func<string, int> SendMockIPCConfigMSG = msg =>
+            {
+                OutGoingGeneralSettings snd = JsonSerializer.Deserialize<OutGoingGeneralSettings>(msg);
+                Assert.AreEqual("light", snd.GeneralSettings.Theme);
+                return 0;
+            };
+
+            Func<string, int> SendRestartAdminIPCMessage = msg => { return 0; };
+            Func<string, int> SendCheckForUpdatesIPCMessage = msg => { return 0; };
+            viewModel = new GeneralViewModel(
+                "GeneralSettings_RunningAsAdminText",
+                "GeneralSettings_RunningAsUserText",
+                false,
+                false,
+                UpdateUIThemeMethod,
+                SendMockIPCConfigMSG,
+                SendRestartAdminIPCMessage,
+                SendCheckForUpdatesIPCMessage,
+                generalSettings_file_name);
+            Assert.IsFalse(viewModel.IsLightThemeRadioButtonChecked);
+
+            // act
+            viewModel.IsLightThemeRadioButtonChecked = true;
+        }
+
+        [TestMethod]
+        public void IsDarkThemeRadioButtonChecked_ShouldThemeToDark_WhenSuccessful()
+        {
+            // Arrange
+            // Assert
+            Func<string, int> SendMockIPCConfigMSG = msg =>
+            {
+                OutGoingGeneralSettings snd = JsonSerializer.Deserialize<OutGoingGeneralSettings>(msg);
+                Assert.AreEqual("dark", snd.GeneralSettings.Theme);
+                return 0;
+            };
+
+            Func<string, int> SendRestartAdminIPCMessage = msg => { return 0; };
+            Func<string, int> SendCheckForUpdatesIPCMessage = msg => { return 0; };
+            GeneralViewModel viewModel = new GeneralViewModel(
+                "GeneralSettings_RunningAsAdminText",
+                "GeneralSettings_RunningAsUserText",
+                false,
+                false,
+                UpdateUIThemeMethod,
+                SendMockIPCConfigMSG,
+                SendRestartAdminIPCMessage,
+                SendCheckForUpdatesIPCMessage,
+                generalSettings_file_name);
+            Assert.IsFalse(viewModel.IsDarkThemeRadioButtonChecked);
+
+
+
+            // act
+            viewModel.IsDarkThemeRadioButtonChecked = true;
+        }
+
+        public int UpdateUIThemeMethod(string themeName)
+        {
+            return 0;
+        }
+    }
+}