Create RegisterNotExistsException. Adjust ProductServiceTest structur…

…e. Create delete product tests

WPFSample/WPFSample.Service/Exceptions/Product/RegisterNotExistsException.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WPFSample.Service.Exceptions.Product
+{
+    public class RegisterNotExistsException : BusinessException
+    {
+        public RegisterNotExistsException(string message) : base(message)
+        {
+        }
+    }
+}

WPFSample/WPFSample.Service/Implementation/ProductService.cs

@@ -138,6 +138,9 @@ public void DeleteProduct(int id)
         {
             Product product = _productRepository.GetById(id);
 
+            if (product == null)
+                throw new RegisterNotExistsException("Register non-existing");
+
             _productRepository.Delete(product);
         }
 

WPFSample/WPFSample.Service/WPFSample.Service.csproj

@@ -47,6 +47,7 @@
     <Compile Include="Exceptions\DatabaseException.cs" />
     <Compile Include="Exceptions\Product\FieldExceedCharacterLimitException.cs" />
     <Compile Include="Exceptions\Product\NumericFieldLessThanZeroException.cs" />
+    <Compile Include="Exceptions\Product\RegisterNotExistsException.cs" />
     <Compile Include="Exceptions\Product\RequiredFieldException.cs" />
     <Compile Include="Implementation\ProductService.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />