Small code improvements

.gitignore

@@ -40,6 +40,8 @@ ScaffoldingReadMe.txt
 ~$*
 *~
 CodeCoverage/
+.vs
+Watermark.Net/.vs
 
 # MSBuild Binary and Structured Log
 *.binlog

UnitTest/UnitTest.cs

@@ -68,7 +68,7 @@ namespace UnitTest
             watermark.Position = Watermark.Net.src.WatermarkNet.Enums.ImagePosition.Center;
             watermark.Scale = 1;
             watermark.Pave = true;
-            var resultedImage = watermarker.ProcessDirectory("TestImages", watermark);
+            watermarker.ProcessDirectory("TestImages", watermark);
 
             Assert.IsTrue(Directory.GetFiles(watermarker.OutputDir)?.Length > 0);
         }

Watermark.Net/src/WatermarkNet.Common/Watermarker.cs

@@ -230,13 +230,12 @@ namespace Watermark.Net.src.WatermarkNet.Core
             {
                 case ImagePosition.TopCenter:
                     return HorizontalAlignment.Center;
-                    break;
                 case ImagePosition.Center:
                     return HorizontalAlignment.Center;
-                    break;
                 case ImagePosition.BottomCenter:
                     return HorizontalAlignment.Center;
-                    break;
+                default:
+                    throw new ArgumentException("Image position must be provided.");
             }
             return HorizontalAlignment.Left; 
         }
@@ -257,7 +256,6 @@ namespace Watermark.Net.src.WatermarkNet.Core
 
             // Create a new font
             Font scaledFont = new Font(watermark.Font, scalingFactor / 16 * (watermark.Font.Size * watermark.Scale));
-            ImagePosition[] centerImagePositions = { ImagePosition.CenterLeft, ImagePosition.CenterRight, ImagePosition.Center };
             //processingContext.SetGraphicsOptions(new GraphicsOptions { AlphaCompositionMode = SixLabors.ImageSharp.PixelFormats.PixelAlphaCompositionMode.Clear});
             //If set, apply backround color
             if (watermark.BackroundColor != null)

Watrmark.Net CLI/Program.cs

@@ -8,6 +8,8 @@ using Watrmark.Net_CLI.Watermak.Net.CLI.Constants;
 using Watrmark.Net_CLI;
 using System.Runtime.InteropServices;
 
+//The CLI version is not fully ready yet. To be implemented in future
+
 Parser.Default.ParseArguments<ConsoleOptions>(args)
   .WithParsed<ConsoleOptions>(option => {
       switch (option.WatermarkType)
@@ -24,6 +26,8 @@ Parser.Default.ParseArguments<ConsoleOptions>(args)
               else
                   ProccessDirectoryText(option);
               break;
+          default:
+              throw new ArgumentException("Watermark type not provided.");
       }
 
   })