refactor: organize test project into subdirectories by feature area

Move 43 root-level test files into feature-specific subdirectories
mirroring the main codebase structure: Geometry, Fill, BestFit, CutOffs,
CuttingStrategy, Engine, IO. Update namespaces to match folder paths.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

OpenNest.Tests/BestFit/NfpBestFitIntegrationTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.Engine.BestFit;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.BestFit;
 
 public class NfpBestFitIntegrationTests
 {

OpenNest.Tests/BestFit/NfpSlideStrategyTests.cs

@@ -4,7 +4,7 @@ using OpenNest.Engine.BestFit;
 using OpenNest.Geometry;
 using OpenNest.Math;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.BestFit;
 
 public class NfpSlideStrategyTests
 {

OpenNest.Tests/CutOffs/CutOffGeometryTests.cs

@@ -3,7 +3,7 @@ using System.Linq;
 using OpenNest.CNC;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CutOffs;
 
 public class CutOffGeometryTests
 {

OpenNest.Tests/CutOffs/CutOffSerializationTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.Geometry;
 using OpenNest.IO;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CutOffs;
 
 public class CutOffSerializationTests
 {

OpenNest.Tests/CutOffs/CutOffTests.cs

@@ -2,7 +2,7 @@ using System.Linq;
 using OpenNest.CNC;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CutOffs;
 
 public class CutOffTests
 {
@@ -26,11 +26,11 @@ public class CutOffTests
     public void Plate_Utilization_ExcludesCutOffParts()
     {
         var pgm = new Program();
-        pgm.Codes.Add(new RapidMove(new Geometry.Vector(0, 0)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(10, 0)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(10, 10)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(0, 10)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(0, 0)));
+        pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(10, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(10, 10)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, 10)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, 0)));
         var realDrawing = new Drawing("real", pgm);
         var cutoffDrawing = new Drawing("cutoff", new Program()) { IsCutOff = true };
 
@@ -47,11 +47,11 @@ public class CutOffTests
     public void Plate_HasOverlappingParts_SkipsCutOffParts()
     {
         var pgm = new Program();
-        pgm.Codes.Add(new RapidMove(new Geometry.Vector(0, 0)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(10, 0)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(10, 10)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(0, 10)));
-        pgm.Codes.Add(new LinearMove(new Geometry.Vector(0, 0)));
+        pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(10, 0)));
+        pgm.Codes.Add(new LinearMove(new Vector(10, 10)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, 10)));
+        pgm.Codes.Add(new LinearMove(new Vector(0, 0)));
 
         var realDrawing = new Drawing("real", pgm);
         var cutoffDrawing = new Drawing("cutoff", pgm) { IsCutOff = true };
@@ -220,7 +220,7 @@ public class CutOffTests
     public void Plate_RegenerateCutOffs_MaterializesParts()
     {
         var plate = new Plate(100, 50);
-        var cutoff = new CutOff(new Geometry.Vector(25, 10), CutOffAxis.Vertical);
+        var cutoff = new CutOff(new Vector(25, 10), CutOffAxis.Vertical);
         plate.CutOffs.Add(cutoff);
 
         plate.RegenerateCutOffs(new CutOffSettings());
@@ -233,7 +233,7 @@ public class CutOffTests
     public void Plate_RegenerateCutOffs_ReplacesOldParts()
     {
         var plate = new Plate(100, 50);
-        var cutoff = new CutOff(new Geometry.Vector(25, 10), CutOffAxis.Vertical);
+        var cutoff = new CutOff(new Vector(25, 10), CutOffAxis.Vertical);
         plate.CutOffs.Add(cutoff);
 
         var settings = new CutOffSettings();
@@ -247,14 +247,14 @@ public class CutOffTests
     public void Plate_RegenerateCutOffs_DoesNotAffectRegularParts()
     {
         var pgm = new OpenNest.CNC.Program();
-        pgm.Codes.Add(new OpenNest.CNC.RapidMove(new Geometry.Vector(0, 0)));
-        pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Geometry.Vector(5, 5)));
+        pgm.Codes.Add(new OpenNest.CNC.RapidMove(new Vector(0, 0)));
+        pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Vector(5, 5)));
         var drawing = new Drawing("real", pgm);
 
         var plate = new Plate(100, 50);
         plate.Parts.Add(new Part(drawing));
 
-        var cutoff = new CutOff(new Geometry.Vector(25, 10), CutOffAxis.Vertical);
+        var cutoff = new CutOff(new Vector(25, 10), CutOffAxis.Vertical);
         plate.CutOffs.Add(cutoff);
 
         plate.RegenerateCutOffs(new CutOffSettings());

OpenNest.Tests/CuttingStrategy/CuttingResultTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.CNC.CuttingStrategy;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CuttingStrategy;
 
 public class CuttingResultTests
 {

OpenNest.Tests/CuttingStrategy/LeadInAssignerTests.cs

@@ -4,7 +4,7 @@ using OpenNest.Engine;
 using OpenNest.Engine.Sequencing;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CuttingStrategy;
 
 public class LeadInAssignerTests
 {

OpenNest.Tests/CuttingStrategy/LeadInLayerTagTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.CNC.CuttingStrategy;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CuttingStrategy;
 
 public class LeadInLayerTagTests
 {

OpenNest.Tests/CuttingStrategy/MotionSuppressedTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.CNC;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CuttingStrategy;
 
 public class MotionSuppressedTests
 {

OpenNest.Tests/CuttingStrategy/PartLeadInTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.CNC.CuttingStrategy;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.CuttingStrategy;
 
 public class PartLeadInTests
 {

OpenNest.Tests/Engine/EngineOverlapTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Geometry;
 using OpenNest.IO;
 using Xunit.Abstractions;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class EngineOverlapTests
 {

OpenNest.Tests/Engine/EngineRefactorSmokeTests.cs

@@ -1,6 +1,6 @@
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class EngineRefactorSmokeTests
 {

OpenNest.Tests/Engine/NestPhaseExtensionsTests.cs

@@ -1,4 +1,4 @@
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class NestPhaseExtensionsTests
 {

OpenNest.Tests/Engine/NestProgressTests.cs

@@ -1,6 +1,6 @@
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class NestProgressTests
 {

OpenNest.Tests/Engine/PartClassifierTests.cs

@@ -4,7 +4,7 @@ using OpenNest.Geometry;
 using OpenNest.Math;
 using OpenNest.Shapes;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class PartClassifierTests
 {

OpenNest.Tests/Engine/PartFlagTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.CNC;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class PartFlagTests
 {

OpenNest.Tests/Engine/PlateProcessorTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Engine;
 using OpenNest.Engine.RapidPlanning;
 using OpenNest.Engine.Sequencing;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class PlateProcessorTests
 {

OpenNest.Tests/Engine/RemnantEngineTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Engine;
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Engine;
 
 public class RemnantEngineTests
 {

OpenNest.Tests/Fill/AccumulatingProgressTests.cs

@@ -1,6 +1,6 @@
 using OpenNest.Engine.Fill;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class AccumulatingProgressTests
 {

OpenNest.Tests/Fill/AngleCandidateBuilderTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 using OpenNest.Math;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class AngleCandidateBuilderTests
 {

OpenNest.Tests/Fill/BestCombinationTests.cs

@@ -1,4 +1,4 @@
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class BestCombinationTests
 {

OpenNest.Tests/Fill/CompactorTests.cs

@@ -4,7 +4,7 @@ using OpenNest.Geometry;
 using Xunit;
 using System.Collections.Generic;
 
-namespace OpenNest.Tests
+namespace OpenNest.Tests.Fill
 {
     public class CompactorTests
     {

OpenNest.Tests/Fill/FillComparerTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Engine;
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class DefaultFillComparerTests
 {

OpenNest.Tests/Fill/FillExtentsTests.cs

@@ -2,7 +2,7 @@ using OpenNest.CNC;
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class FillExtentsTests
 {

OpenNest.Tests/Fill/FillPolicyTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Engine.Fill;
 using OpenNest.Engine.Strategies;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class FillWithDirectionPreferenceTests
 {

OpenNest.Tests/Fill/FillScoreTests.cs

@@ -1,6 +1,7 @@
+using OpenNest.Geometry;
 using OpenNest.Engine.Fill;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class FillScoreTests
 {
@@ -48,7 +49,7 @@ public class FillScoreTests
     [Fact]
     public void Compute_NullParts_ReturnsDefault()
     {
-        var score = FillScore.Compute(null, new Geometry.Box(0, 0, 100, 100));
+        var score = FillScore.Compute(null, new Box(0, 0, 100, 100));
 
         Assert.Equal(0, score.Count);
     }
@@ -56,7 +57,7 @@ public class FillScoreTests
     [Fact]
     public void Compute_EmptyParts_ReturnsDefault()
     {
-        var score = FillScore.Compute(new System.Collections.Generic.List<Part>(), new Geometry.Box(0, 0, 100, 100));
+        var score = FillScore.Compute(new System.Collections.Generic.List<Part>(), new Box(0, 0, 100, 100));
 
         Assert.Equal(0, score.Count);
     }
@@ -70,7 +71,7 @@ public class FillScoreTests
             TestHelpers.MakePartAt(20, 0, 10),
             TestHelpers.MakePartAt(40, 0, 10)
         };
-        var score = FillScore.Compute(parts, new Geometry.Box(0, 0, 100, 100));
+        var score = FillScore.Compute(parts, new Box(0, 0, 100, 100));
 
         Assert.Equal(3, score.Count);
         Assert.True(score.Density > 0);

OpenNest.Tests/Fill/IterativeShrinkFillerTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class IterativeShrinkFillerTests
 {

OpenNest.Tests/Fill/PairFillerTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class PairFillerTests
 {

OpenNest.Tests/Fill/PairOverlapDiagnosticTests.cs

@@ -4,7 +4,7 @@ using OpenNest.Geometry;
 using OpenNest.Math;
 using Xunit.Abstractions;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class PairOverlapDiagnosticTests
 {

OpenNest.Tests/Fill/PatternTilerTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class PatternTilerTests
 {

OpenNest.Tests/Fill/RemnantFillerTests2.cs

@@ -1,7 +1,7 @@
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class RemnantFillerTests2
 {

OpenNest.Tests/Fill/RemnantFinderTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 using OpenNest.IO;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class RemnantFinderTests
 {

OpenNest.Tests/Fill/ShrinkFillerTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.Engine.Fill;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Fill;
 
 public class ShrinkFillerTests
 {

OpenNest.Tests/Geometry/CollisionTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Geometry;
 using OpenNest.Math;
 using System.Collections.Generic;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class CollisionTests
 {

OpenNest.Tests/Geometry/ContourClassificationTests.cs

@@ -1,7 +1,7 @@
 using OpenNest.Converters;
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class ContourClassificationTests
 {

OpenNest.Tests/Geometry/EllipseConverterTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Math;
 using Xunit;
 using System.Linq;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class EllipseConverterTests
 {

OpenNest.Tests/Geometry/GeometrySimplifierTests.cs

@@ -4,7 +4,7 @@ using System.IO;
 using System.Linq;
 using Xunit;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class GeometrySimplifierTests
 {

OpenNest.Tests/Geometry/PolyLabelTests.cs

@@ -1,6 +1,6 @@
 using OpenNest.Geometry;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class PolyLabelTests
 {

OpenNest.Tests/Geometry/PolygonHelperTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Engine.BestFit;
 using OpenNest.Geometry;
 using OpenNest.Math;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class PolygonHelperTests
 {

OpenNest.Tests/Geometry/SplineConverterTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Geometry;
 using OpenNest.Math;
 using Xunit;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Geometry;
 
 public class SplineConverterTests
 {

OpenNest.Tests/IO/DxfRoundtripTests.cs

@@ -2,7 +2,7 @@ using OpenNest.Converters;
 using OpenNest.Geometry;
 using OpenNest.IO;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.IO;
 
 public class DxfRoundtripTests
 {

OpenNest.Tests/IO/NestBendSerializationTests.cs

@@ -3,7 +3,7 @@ using OpenNest.Geometry;
 using OpenNest.IO;
 using System.Linq;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.IO;
 
 public class NestBendSerializationTests
 {

OpenNest.Tests/Strategies/StrategyOverlapTests.cs

@@ -6,7 +6,7 @@ using OpenNest.Geometry;
 using OpenNest.IO;
 using Xunit.Abstractions;
 
-namespace OpenNest.Tests;
+namespace OpenNest.Tests.Strategies;
 
 public class StrategyOverlapTests
 {