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feat: add xUnit test project with fill and remnant fill tests

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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-03-09 21:07:04 -04:00
parent d2a71a6d8c
commit 8fcd3660d8
5 changed files with 258 additions and 0 deletions
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.gitignore vendored Normal file
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bin/
obj/

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FillTests.cs Normal file
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using OpenNest.Geometry;
using Xunit;
using Xunit.Abstractions;
namespace OpenNest.Test;
public class FillTests
{
private readonly ITestOutputHelper _output;
public FillTests(ITestOutputHelper output)
{
_output = output;
}
[SkippableFact]
[Trait("Category", "Fill")]
public void N0308_008_HingePlate_FillsAtLeast75()
{
Skip.IfNot(TestData.IsAvailable, TestData.SkipReason);
var nest = TestData.LoadNest("N0308-008.zip");
var hinge = nest.Drawings.First(d => d.Name.Contains("HINGE PLATE #2"));
var plate = TestData.CleanPlateFrom(nest.Plates[0]);
var engine = new NestEngine(plate);
var sw = System.Diagnostics.Stopwatch.StartNew();
engine.Fill(new NestItem { Drawing = hinge, Quantity = 0 });
sw.Stop();
_output.WriteLine($"Parts: {plate.Parts.Count} | Time: {sw.ElapsedMilliseconds}ms");
Assert.True(plate.Parts.Count >= 75,
$"Expected >= 75 parts, got {plate.Parts.Count}");
AssertNoOverlaps(plate.Parts.ToList());
}
[SkippableFact]
[Trait("Category", "Fill")]
public void RemainderStripRefill_30pcs_FillsAtLeast32()
{
Skip.IfNot(TestData.IsAvailable, TestData.SkipReason);
var nest = TestData.LoadNest("30pcs Fill.zip");
var drawing = nest.Drawings.First();
var plate = TestData.CleanPlateFrom(nest.Plates[0]);
var engine = new NestEngine(plate);
var sw = System.Diagnostics.Stopwatch.StartNew();
engine.Fill(new NestItem { Drawing = drawing, Quantity = 0 });
sw.Stop();
_output.WriteLine($"Parts: {plate.Parts.Count} | Time: {sw.ElapsedMilliseconds}ms");
Assert.True(plate.Parts.Count >= 32,
$"Expected >= 32 parts, got {plate.Parts.Count}");
AssertNoOverlaps(plate.Parts.ToList());
}
private void AssertNoOverlaps(List<Part> parts)
{
for (var i = 0; i < parts.Count; i++)
{
for (var j = i + 1; j < parts.Count; j++)
{
if (parts[i].Intersects(parts[j], out _))
Assert.Fail($"Overlap detected: part [{i}] vs [{j}]");
}
}
}
}

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OpenNest.Test.csproj Normal file
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<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="Microsoft.NET.Test.Sdk" Version="17.*" />
<PackageReference Include="xunit" Version="2.*" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.*" />
<PackageReference Include="Xunit.SkippableFact" Version="1.*" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\OpenNest\OpenNest.Core\OpenNest.Core.csproj" />
<ProjectReference Include="..\OpenNest\OpenNest.Engine\OpenNest.Engine.csproj" />
<ProjectReference Include="..\OpenNest\OpenNest.IO\OpenNest.IO.csproj" />
</ItemGroup>
</Project>

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RemnantFillTests.cs Normal file
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using OpenNest.Geometry;
using Xunit;
using Xunit.Abstractions;
namespace OpenNest.Test;
public class RemnantFillTests
{
private readonly ITestOutputHelper _output;
public RemnantFillTests(ITestOutputHelper output)
{
_output = output;
}
[SkippableFact]
[Trait("Category", "Remnant")]
public void N0308_017_PT02_RemnantFillsAtLeast10()
{
Skip.IfNot(TestData.IsAvailable, TestData.SkipReason);
var nest = TestData.LoadNest("N0308-017.zip");
var plate = nest.Plates[0];
var pt02 = nest.Drawings.First(d => d.Name.Contains("PT02"));
var remnant = plate.GetRemnants()[0];
_output.WriteLine($"Remnant: ({remnant.X:F2},{remnant.Y:F2}) {remnant.Width:F2}x{remnant.Height:F2}");
var countBefore = plate.Parts.Count;
var engine = new NestEngine(plate);
var sw = System.Diagnostics.Stopwatch.StartNew();
engine.Fill(new NestItem { Drawing = pt02, Quantity = 0 }, remnant);
sw.Stop();
var added = plate.Parts.Count - countBefore;
_output.WriteLine($"Added: {added} parts | Time: {sw.ElapsedMilliseconds}ms");
Assert.True(added >= 10, $"Expected >= 10 parts in remnant, got {added}");
var newParts = plate.Parts.Skip(countBefore).ToList();
AssertNoOverlaps(newParts);
AssertNoCrossOverlaps(plate.Parts.Take(countBefore).ToList(), newParts);
}
[SkippableFact]
[Trait("Category", "Remnant")]
public void N0308_008_HingePlate_RemnantFillsAtLeast8()
{
Skip.IfNot(TestData.IsAvailable, TestData.SkipReason);
var nest = TestData.LoadNest("N0308-008.zip");
var plate = nest.Plates[0];
var hinge = nest.Drawings.First(d => d.Name.Contains("HINGE PLATE #2"));
var remnants = plate.GetRemnants();
_output.WriteLine($"Remnant 0: ({remnants[0].X:F2},{remnants[0].Y:F2}) {remnants[0].Width:F2}x{remnants[0].Height:F2}");
var countBefore = plate.Parts.Count;
var engine = new NestEngine(plate);
var sw = System.Diagnostics.Stopwatch.StartNew();
engine.Fill(new NestItem { Drawing = hinge, Quantity = 0 }, remnants[0]);
sw.Stop();
var added = plate.Parts.Count - countBefore;
_output.WriteLine($"Added: {added} parts | Time: {sw.ElapsedMilliseconds}ms");
Assert.True(added >= 8, $"Expected >= 8 parts in remnant, got {added}");
var newParts = plate.Parts.Skip(countBefore).ToList();
AssertNoOverlaps(newParts);
AssertNoCrossOverlaps(plate.Parts.Take(countBefore).ToList(), newParts);
}
private void AssertNoOverlaps(List<Part> parts)
{
for (var i = 0; i < parts.Count; i++)
{
for (var j = i + 1; j < parts.Count; j++)
{
if (parts[i].Intersects(parts[j], out _))
Assert.Fail($"Overlap detected: part [{i}] vs [{j}]");
}
}
}
private void AssertNoCrossOverlaps(List<Part> existing, List<Part> added)
{
for (var i = 0; i < existing.Count; i++)
{
for (var j = 0; j < added.Count; j++)
{
if (existing[i].Intersects(added[j], out _))
Assert.Fail($"Cross-overlap: existing [{i}] vs added [{j}]");
}
}
}
}

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TestData.cs Normal file
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using OpenNest.IO;
namespace OpenNest.Test;
public static class TestData
{
private static readonly string? BasePath = ResolveBasePath();
public static bool IsAvailable => BasePath != null;
public static string SkipReason =>
"Test data not found. Fixture .zip files should be in the repo root.";
public static string GetPath(string filename)
{
if (BasePath == null)
throw new InvalidOperationException(SkipReason);
var path = Path.Combine(BasePath, filename);
if (!File.Exists(path))
throw new FileNotFoundException($"Test fixture not found: {path}");
return path;
}
public static Nest LoadNest(string filename)
{
var reader = new NestReader(GetPath(filename));
return reader.Read();
}
public static Plate CleanPlateFrom(Plate reference)
{
var plate = new Plate();
plate.Size = reference.Size;
plate.PartSpacing = reference.PartSpacing;
plate.EdgeSpacing = reference.EdgeSpacing;
plate.Quadrant = reference.Quadrant;
return plate;
}
private static string? ResolveBasePath()
{
// Walk up from bin/Debug/net8.0-windows to find the repo root
// (where the .zip fixture files live alongside the csproj).
var dir = AppContext.BaseDirectory;
for (var i = 0; i < 6; i++)
{
var parent = Directory.GetParent(dir);
if (parent == null)
break;
dir = parent.FullName;
if (File.Exists(Path.Combine(dir, "OpenNest.Test.csproj")))
return dir;
}
return null;
}
}