AJ Isaacs
ef737ffa6d
Introduces IterativeShrinkFiller.Fill, which composes RemnantFiller and ShrinkFiller by wrapping the caller's fill function in a closure that tries both ShrinkAxis.Height and ShrinkAxis.Width and picks the better FillScore. Adds IterativeShrinkResult (Parts + Leftovers). Covers null/empty inputs and single-item placement with three passing xUnit tests. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
60 lines
2.0 KiB
C#
60 lines
2.0 KiB
C#
using OpenNest.Engine.Fill;
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using OpenNest.Geometry;
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namespace OpenNest.Tests;
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public class IterativeShrinkFillerTests
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{
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[Fact]
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public void Fill_NullItems_ReturnsEmpty()
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{
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Func<NestItem, Box, List<Part>> fillFunc = (ni, b) => new List<Part>();
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var result = IterativeShrinkFiller.Fill(null, new Box(0, 0, 100, 100), fillFunc, 1.0);
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Assert.Empty(result.Parts);
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Assert.Empty(result.Leftovers);
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}
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[Fact]
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public void Fill_EmptyItems_ReturnsEmpty()
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{
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Func<NestItem, Box, List<Part>> fillFunc = (ni, b) => new List<Part>();
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var result = IterativeShrinkFiller.Fill(new List<NestItem>(), new Box(0, 0, 100, 100), fillFunc, 1.0);
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Assert.Empty(result.Parts);
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Assert.Empty(result.Leftovers);
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}
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private static Drawing MakeRectDrawing(double w, double h, string name = "rect")
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{
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var pgm = new OpenNest.CNC.Program();
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pgm.Codes.Add(new OpenNest.CNC.RapidMove(new Vector(0, 0)));
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pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Vector(w, 0)));
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pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Vector(w, h)));
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pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Vector(0, h)));
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pgm.Codes.Add(new OpenNest.CNC.LinearMove(new Vector(0, 0)));
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return new Drawing(name, pgm);
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}
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[Fact]
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public void Fill_SingleItem_PlacesParts()
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{
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var drawing = MakeRectDrawing(20, 10);
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var items = new List<NestItem>
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{
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new NestItem { Drawing = drawing, Quantity = 5 }
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};
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Func<NestItem, Box, List<Part>> fillFunc = (ni, b) =>
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{
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var plate = new Plate(b.Width, b.Length);
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var engine = new DefaultNestEngine(plate);
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return engine.Fill(ni, b, null, System.Threading.CancellationToken.None);
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};
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var result = IterativeShrinkFiller.Fill(items, new Box(0, 0, 120, 60), fillFunc, 1.0);
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Assert.True(result.Parts.Count > 0, "Should place parts");
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}
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}
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