test and calling project

Author: ovpoddar

ConsoleApp1/ConsoleApp1.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Src\PngDecoder\PngDecoder.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Reference Include="ImageQT">
+      <HintPath>..\..\..\ImageQt\Src\ImageQT\bin\Debug\net8.0\ImageQT.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+
+</Project>

ConsoleApp1/Program.cs

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+using ImageQT;
+using System.Linq;
+using ImageQT.Models.ImagqQT;
+using PngDecoder;
+using System.Text;
+using System.Runtime.InteropServices;
+using PngDecoder.Models;
+
+var folder = "D:\\testP\\png\\broken";
+var files = Directory.GetFiles(folder);
+files = [@"D:\testP\png\broken\Issue_2589 (2).png"];
+foreach (var file in files)
+{
+    try
+    {
+        using var fs = File.OpenRead(file);
+        var p = new PNGDecode(fs);
+        var rawdecode = p.DecodeImageData();
+        var format = new Pixels[p.width * p.Height];
+        for (int i = 0; i < format.Length; i++)
+        {
+            format[i] = new Pixels(rawdecode[i * 4], rawdecode[i * 4 + 1], rawdecode[i * 4 + 2]);
+        }
+        var img = ImageLoader.LoadImage(p.width, p.Height, ref format);
+        var qt = new ImageQt(img);
+        await qt.Show();
+    }
+    catch (Exception ex)
+    {
+        Console.BackgroundColor = ConsoleColor.Red;
+        Console.WriteLine($"{file} {ex.Message }");
+        Console.BackgroundColor = default(ConsoleColor);
+    }
+}
+Console.ReadLine();

Test/BaseFilterForSixteenBitImage.cs

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+using PngDecoder.Models.Filters;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Test;
+public class BaseFilterForSixteenBitImage
+{
+
+    private MemoryStream _stream;
+    public BaseFilterForSixteenBitImage()
+    {
+        _stream = new MemoryStream();
+        _stream.Position = 0;
+
+        _stream.WriteByte(99); // Filter              
+            _stream.WriteByte(8); // R
+            _stream.WriteByte(9); // G
+            _stream.WriteByte(10); // B
+
+            _stream.WriteByte(8); // R
+            _stream.WriteByte(9); // G
+            _stream.WriteByte(10); // B
+
+            _stream.WriteByte(8); // R
+            _stream.WriteByte(9); // G
+            _stream.WriteByte(10); // B
+
+        _stream.WriteByte(99); // Filter    
+            _stream.WriteByte(18); // R
+            _stream.WriteByte(19); // G
+            _stream.WriteByte(20); // B
+
+            _stream.WriteByte(18); // R
+            _stream.WriteByte(19); // G
+            _stream.WriteByte(20); // B
+
+            _stream.WriteByte(18); // R
+            _stream.WriteByte(19); // G
+            _stream.WriteByte(20); // B
+    }
+
+    [Fact]
+    public void Get3PartLeft()
+    {
+        var filter = new BaseFilter(_stream);
+        _stream.Seek(4, SeekOrigin.Begin);
+        var pos  = _stream.ReadByte();
+        var left = filter.GetLeftByte(9, 3);
+
+        Assert.Equal(pos, left);
+    }
+}