test: prototype stage 3. create tests for o2nextgen app(desktop wpf)

.gitignore

@@ -348,5 +348,6 @@ MigrationBackup/
 
 # Ionide (cross platform F# VS Code tools) working folder
 .ionide/
+.idea/
 .DS_Store
 .idea

src/DesktopApps/O2NextGen.Shell/App.xaml

@@ -1,7 +1,7 @@
 <Application x:Class="O2NextGen.Shell.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             StartupUri="MainWindow.xaml">
+             >
     <Application.Resources>
         <ResourceDictionary Source="Themes/Light.xaml"/>
     </Application.Resources>

src/DesktopApps/O2NextGen.Shell/App.xaml.cs

@@ -1,4 +1,5 @@
 using System.Windows;
+using O2NextGen.Shell.ViewModels;
 
 namespace O2NextGen.Shell
 {
@@ -8,5 +9,16 @@ namespace O2NextGen.Shell
     // ReSharper disable once RedundantExtendsListEntry
     public partial class App : Application
     {
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            base.OnStartup(e);
+
+            MainWindow window = new MainWindow()
+            {
+                DataContext = new CertificateViewModel()
+            };
+
+            window.ShowDialog();
+        }
     }
 }

src/DesktopApps/O2NextGen.Shell/O2NextGen.Shell.csproj

@@ -6,4 +6,8 @@
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\O2NextGen.Windows\O2NextGen.Windows.csproj" />
+  </ItemGroup>
+
 </Project>

src/DesktopApps/O2NextGen.Shell/ViewModels/CertificateViewModel.cs

@@ -0,0 +1,55 @@
+using System.ComponentModel.DataAnnotations;
+using O2NextGen.Windows;
+
+namespace O2NextGen.Shell.ViewModels
+{
+    public class CertificateViewModel: ViewModel
+    {
+        #region Ctors
+
+
+        #endregion
+
+
+        #region Fields
+
+        private string _certificateName;
+
+        #endregion
+
+
+        #region Props
+
+        [Required]
+        [StringLength(32,MinimumLength = 4)]
+        public string CertificateName
+        {
+            get => _certificateName;
+            set
+            {
+                _certificateName = value;
+                OnPropertyChanged();
+            }
+        }
+
+        #endregion
+
+
+        #region Methods
+
+        #region Overrides of ViewModel
+
+        protected override string OnValidate(string propertyName)
+        {
+            if (CertificateName!=null && !CertificateName.Contains(""))
+                return "The name of the certificate must include at least 2 words";
+
+            return base.OnValidate(propertyName);
+        }
+
+        #endregion
+
+
+        #endregion
+    }
+}

src/DesktopApps/O2NextGen.Shell/Views/MainWindow.xaml

@@ -3,10 +3,12 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:O2NextGen.Shell"
+        xmlns:viewModels="clr-namespace:O2NextGen.Shell.ViewModels"
         mc:Ignorable="d"
+        d:DataContext="{d:DesignInstance viewModels:CertificateViewModel}"
         Title="MainWindow" Height="450" Width="800">
     <Grid>
-
+        <TextBox Margin="30" 
+                 Text="{Binding CertificateName, Mode=TwoWay, ValidatesOnDataErrors=True, UpdateSourceTrigger=PropertyChanged}"/>
     </Grid>
 </Window>