Add Day 06 solution, needs cleanup later

AoC_2025.Tests/Day06Test.cs

@@ -0,0 +1,47 @@
+using AdvenOfCode.Contracts;
+
+namespace AoC_2025.Tests;
+
+public class Day06Test
+{
+    private readonly IPuzzleSolver<long> _sut;
+    private static readonly string rootPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+    private readonly string TestInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Test\day06.txt";
+    private readonly string ProdInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Prod\day06.txt";
+    
+    public Day06Test()
+    {
+        _sut = new Day06();
+    }
+    [Fact]
+    public void Part01_Test_equals_4277556()
+    {
+        var actual = _sut.SolvePart1(TestInputPath);
+        
+        Assert.Equal(4277556, actual);
+    }
+    
+    [Fact]
+    public void Part01_Prod_equals_6299564383938()
+    {
+        var actual = _sut.SolvePart1(ProdInputPath);
+        
+        Assert.Equal(6299564383938, actual);
+    }
+    
+    [Fact]
+    public void Part02_Test_equals_3263827()
+    {
+        var actual = _sut.SolvePart2(TestInputPath);
+        
+        Assert.Equal(3263827, actual);
+    }
+    
+    [Fact]
+    public void Part02_Prod_equals_11950004808442()
+    {
+        var actual = _sut.SolvePart2(ProdInputPath);
+        
+        Assert.Equal(11950004808442, actual);
+    }
+}