[Settings] Migrate Color Picker Settings Tests (#5759)

* added MSTest project

* migrated color picker settings

* undo changes for the .xaml page

src/core/Microsoft.PowerToys.Settings.UI.Lib/ViewModels/ColorPickerViewModel.cs

@@ -1,20 +1,21 @@
 // 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.Text.Json;
+using Microsoft.PowerToys.Settings.UI.Lib.Helpers;
 
-using Microsoft.PowerToys.Settings.UI.Helpers;
-using Microsoft.PowerToys.Settings.UI.Lib;
-using Microsoft.PowerToys.Settings.UI.Views;
-
-namespace Microsoft.PowerToys.Settings.UI.ViewModels
+namespace Microsoft.PowerToys.Settings.UI.Lib.ViewModels
 {
     public class ColorPickerViewModel : Observable
     {
         private ColorPickerSettings _colorPickerSettings;
         private bool _isEnabled;
 
-        public ColorPickerViewModel()
+        private Func<string, int> SendConfigMSG { get; }
+
+        public ColorPickerViewModel(Func<string, int> ipcMSGCallBackFunc)
         {
             if (SettingsUtils.SettingsExists(ColorPickerSettings.ModuleName))
             {
@@ -30,6 +31,9 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
                 var generalSettings = SettingsUtils.GetSettings<GeneralSettings>();
                 _isEnabled = generalSettings.Enabled.ColorPicker;
             }
+
+            // set the callback functions value to hangle outgoing IPC message.
+            SendConfigMSG = ipcMSGCallBackFunc;
         }
 
         public bool IsEnabled
@@ -50,7 +54,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
                     var generalSettings = SettingsUtils.GetSettings<GeneralSettings>();
                     generalSettings.Enabled.ColorPicker = value;
                     OutGoingGeneralSettings outgoing = new OutGoingGeneralSettings(generalSettings);
-                    ShellPage.DefaultSndMSGCallback(outgoing.ToString());
+                    SendConfigMSG(outgoing.ToString());
                 }
             }
         }
@@ -111,7 +115,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
 
         private void NotifySettingsChanged()
         {
-            ShellPage.DefaultSndMSGCallback(
+            SendConfigMSG(
                    string.Format("{{ \"powertoys\": {{ \"{0}\": {1} }} }}", ColorPickerSettings.ModuleName, JsonSerializer.Serialize(_colorPickerSettings)));
         }
     }

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

@@ -0,0 +1,63 @@
+// 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.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 ColorPicker
+    {
+        private const string ModuleName = "ColorPicker";
+
+        [TestInitialize]
+        public void Setup()
+        {
+            var generalSettings = new GeneralSettings();
+            var colorPickerSettings = new ColorPickerSettings();
+
+            SettingsUtils.SaveSettings(generalSettings.ToJsonString());
+            SettingsUtils.SaveSettings(colorPickerSettings.ToJsonString(), colorPickerSettings.Name, ModuleName + ".json");
+        }
+
+        [TestCleanup]
+        public void CleanUp()
+        {
+            string generalSettings_file_name = string.Empty;
+            if (SettingsUtils.SettingsFolderExists(generalSettings_file_name))
+            {
+                DeleteFolder(generalSettings_file_name);
+            }
+
+            if (SettingsUtils.SettingsFolderExists(ModuleName))
+            {
+                DeleteFolder(ModuleName);
+            }
+        }
+
+        [TestMethod]
+        public void ColorPickerIsEnabledByDefault()
+        {
+            var viewModel = new ColorPickerViewModel(ColorPickerIsEnabledByDefault_IPC);
+
+            Assert.IsTrue(viewModel.IsEnabled);
+        }
+
+        public int ColorPickerIsEnabledByDefault_IPC(string msg)
+        {
+            OutGoingGeneralSettings snd = JsonSerializer.Deserialize<OutGoingGeneralSettings>(msg);
+            Assert.IsTrue(snd.GeneralSettings.Enabled.ColorPicker);
+            return 0;
+        }
+
+        private static void DeleteFolder(string powertoy)
+        {
+            Directory.Delete(Path.Combine(SettingsUtils.LocalApplicationDataFolder(), $"Microsoft\\PowerToys\\{powertoy}"), true);
+        }
+    }
+}

src/core/Microsoft.PowerToys.Settings.UI/Microsoft.PowerToys.Settings.UI.csproj

@@ -108,7 +108,6 @@
     <Compile Include="Interop.cs" />
     <Compile Include="Services\ActivationService.cs" />
     <Compile Include="Services\NavigationService.cs" />
-    <Compile Include="ViewModels\ColorPickerViewModel.cs" />
     <Compile Include="ViewModels\Commands\ButtonClickCommand.cs" />
     <Compile Include="ViewModels\FancyZonesViewModel.cs" />
     <Compile Include="ViewModels\ImageResizerViewModel.cs" />

src/core/Microsoft.PowerToys.Settings.UI/Views/ColorPickerPage.xaml.cs

@@ -2,7 +2,7 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Microsoft.PowerToys.Settings.UI.ViewModels;
+using Microsoft.PowerToys.Settings.UI.Lib.ViewModels;
 using Windows.UI.Xaml.Controls;
 
 namespace Microsoft.PowerToys.Settings.UI.Views
@@ -13,7 +13,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
 
         public ColorPickerPage()
         {
-            ViewModel = new ColorPickerViewModel();
+            ViewModel = new ColorPickerViewModel(ShellPage.SendDefaultIPCMessage);
             DataContext = ViewModel;
             InitializeComponent();
         }