chore: rename test project to OpenNest.Tests

Renamed OpenNest.Engine.Tests → OpenNest.Tests (directory, .csproj,
namespaces in all .cs files). Added OpenNest.IO project reference.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

OpenNest.Tests/CuttingResultTests.cs

@@ -0,0 +1,23 @@
+using OpenNest.CNC;
+using OpenNest.CNC.CuttingStrategy;
+using OpenNest.Geometry;
+using Xunit;
+
+namespace OpenNest.Tests;
+
+public class CuttingResultTests
+{
+    [Fact]
+    public void CuttingResult_StoresValues()
+    {
+        var pgm = new Program();
+        pgm.Codes.Add(new RapidMove(new Vector(1, 2)));
+        var point = new Vector(3, 4);
+
+        var result = new CuttingResult { Program = pgm, LastCutPoint = point };
+
+        Assert.Same(pgm, result.Program);
+        Assert.Equal(3, result.LastCutPoint.X);
+        Assert.Equal(4, result.LastCutPoint.Y);
+    }
+}

OpenNest.Tests/OpenNest.Tests.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="xunit" Version="2.5.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\OpenNest.Core\OpenNest.Core.csproj" />
+    <ProjectReference Include="..\OpenNest.Engine\OpenNest.Engine.csproj" />
+    <ProjectReference Include="..\OpenNest.IO\OpenNest.IO.csproj" />
+  </ItemGroup>
+
+</Project>

OpenNest.Tests/PartFlagTests.cs

@@ -0,0 +1,32 @@
+using OpenNest.CNC;
+using OpenNest.Geometry;
+using Xunit;
+
+namespace OpenNest.Tests;
+
+public class PartFlagTests
+{
+    [Fact]
+    public void HasManualLeadIns_DefaultsFalse()
+    {
+        var pgm = new Program();
+        pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
+        var drawing = new Drawing("test", pgm);
+        var part = new Part(drawing);
+
+        Assert.False(part.HasManualLeadIns);
+    }
+
+    [Fact]
+    public void HasManualLeadIns_CanBeSet()
+    {
+        var pgm = new Program();
+        pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
+        var drawing = new Drawing("test", pgm);
+        var part = new Part(drawing);
+
+        part.HasManualLeadIns = true;
+
+        Assert.True(part.HasManualLeadIns);
+    }
+}

OpenNest.Tests/TestHelpers.cs

@@ -0,0 +1,27 @@
+using OpenNest.CNC;
+using OpenNest.Geometry;
+
+namespace OpenNest.Tests;
+
+internal static class TestHelpers
+{
+    public static Part MakePartAt(double x, double y, double size = 1)
+    {
+        var pgm = new Program();
+        pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(size, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(size, size)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, size)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, 0)));
+        var drawing = new Drawing("test", pgm);
+        return new Part(drawing, new Vector(x, y));
+    }
+
+    public static Plate MakePlate(double width = 60, double length = 120, params Part[] parts)
+    {
+        var plate = new Plate(width, length);
+        foreach (var p in parts)
+            plate.Parts.Add(p);
+        return plate;
+    }
+}