126 lines
3.6 KiB
C#
126 lines
3.6 KiB
C#
using OpenNest.Geometry;
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namespace OpenNest.Tests;
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public class RemnantFinderTests
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{
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[Fact]
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public void EmptyPlate_ReturnsWholeWorkArea()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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var remnants = finder.FindRemnants();
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Assert.Single(remnants);
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Assert.Equal(100 * 100, remnants[0].Area(), 0.1);
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}
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[Fact]
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public void SingleObstacle_InCorner_FindsLShapedRemnants()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 40, 40));
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var remnants = finder.FindRemnants();
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Assert.True(remnants.Count >= 2);
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var largest = remnants[0];
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Assert.Equal(60 * 100, largest.Area(), 0.1);
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}
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[Fact]
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public void SingleObstacle_InCenter_FindsFourRemnants()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(30, 30, 40, 40));
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var remnants = finder.FindRemnants();
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Assert.True(remnants.Count >= 4);
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}
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[Fact]
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public void MinDimension_FiltersSmallRemnants()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 95, 100));
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var all = finder.FindRemnants(0);
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var filtered = finder.FindRemnants(10);
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Assert.True(all.Count > filtered.Count);
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foreach (var r in filtered)
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{
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Assert.True(r.Width >= 10);
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Assert.True(r.Length >= 10);
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}
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}
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[Fact]
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public void ResultsSortedByAreaDescending()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 50, 50));
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var remnants = finder.FindRemnants();
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for (var i = 1; i < remnants.Count; i++)
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Assert.True(remnants[i - 1].Area() >= remnants[i].Area());
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}
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[Fact]
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public void AddObstacle_UpdatesResults()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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var before = finder.FindRemnants();
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Assert.Single(before);
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finder.AddObstacle(new Box(0, 0, 50, 50));
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var after = finder.FindRemnants();
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Assert.True(after.Count > 1);
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}
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[Fact]
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public void ClearObstacles_ResetsToFullWorkArea()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 50, 50));
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finder.ClearObstacles();
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var remnants = finder.FindRemnants();
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Assert.Single(remnants);
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Assert.Equal(100 * 100, remnants[0].Area(), 0.1);
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}
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[Fact]
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public void FullyCovered_ReturnsEmpty()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 100, 100));
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var remnants = finder.FindRemnants();
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Assert.Empty(remnants);
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}
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[Fact]
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public void MultipleObstacles_FindsGapBetween()
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{
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var finder = new RemnantFinder(new Box(0, 0, 100, 100));
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finder.AddObstacle(new Box(0, 0, 40, 100));
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finder.AddObstacle(new Box(60, 0, 40, 100));
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var remnants = finder.FindRemnants();
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var gap = remnants.FirstOrDefault(r =>
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r.Width >= 19.9 && r.Width <= 20.1 &&
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r.Length >= 99.9);
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Assert.NotNull(gap);
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}
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[Fact]
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public void FromPlate_CreatesFinderWithPartsAsObstacles()
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{
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var plate = TestHelpers.MakePlate(60, 120,
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TestHelpers.MakePartAt(0, 0, 20));
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var finder = RemnantFinder.FromPlate(plate);
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var remnants = finder.FindRemnants();
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Assert.True(remnants.Count >= 1);
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Assert.True(remnants[0].Area() < plate.WorkArea().Area());
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}
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}
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