104 lines
3.7 KiB
C#
104 lines
3.7 KiB
C#
using OpenNest.CNC;
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using OpenNest.Engine.BestFit;
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using OpenNest.Geometry;
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using OpenNest.Math;
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namespace OpenNest.Tests;
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public class NfpSlideStrategyTests
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{
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[Fact]
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public void GenerateCandidates_ReturnsNonEmpty_ForSquare()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.NotEmpty(candidates);
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}
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[Fact]
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public void GenerateCandidates_AllCandidatesHaveCorrectDrawing()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.All(candidates, c => Assert.Same(drawing, c.Drawing));
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}
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[Fact]
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public void GenerateCandidates_Part1RotationIsAlwaysZero()
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{
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var strategy = new NfpSlideStrategy(Angle.HalfPI, 1, "90 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.All(candidates, c => Assert.Equal(0, c.Part1Rotation));
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}
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[Fact]
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public void GenerateCandidates_Part2RotationMatchesStrategy()
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{
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var rotation = Angle.HalfPI;
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var strategy = new NfpSlideStrategy(rotation, 1, "90 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.All(candidates, c => Assert.Equal(rotation, c.Part2Rotation));
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}
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[Fact]
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public void GenerateCandidates_NoDuplicateOffsets()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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var uniqueOffsets = candidates
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.Select(c => (System.Math.Round(c.Part2Offset.X, 6), System.Math.Round(c.Part2Offset.Y, 6)))
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.Distinct()
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.Count();
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Assert.Equal(candidates.Count, uniqueOffsets);
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}
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[Fact]
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public void GenerateCandidates_MoreCandidates_WithSmallerStepSize()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var largeStep = strategy.GenerateCandidates(drawing, 0.25, 5.0);
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var smallStep = strategy.GenerateCandidates(drawing, 0.25, 0.5);
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Assert.True(smallStep.Count >= largeStep.Count);
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}
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[Fact]
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public void GenerateCandidates_ReturnsEmpty_ForEmptyDrawing()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var pgm = new Program();
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var drawing = new Drawing("empty", pgm);
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.Empty(candidates);
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}
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[Fact]
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public void GenerateCandidates_LShape_ProducesMoreCandidates_ThanSquare()
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{
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var strategy = new NfpSlideStrategy(0, 1, "0 deg NFP");
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var square = TestHelpers.MakeSquareDrawing();
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var lshape = TestHelpers.MakeLShapeDrawing();
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var squareCandidates = strategy.GenerateCandidates(square, 0.25, 0.25);
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var lshapeCandidates = strategy.GenerateCandidates(lshape, 0.25, 0.25);
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Assert.True(lshapeCandidates.Count > squareCandidates.Count);
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}
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[Fact]
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public void GenerateCandidates_At180Degrees_ProducesCandidates()
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{
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var strategy = new NfpSlideStrategy(System.Math.PI, 1, "180 deg NFP");
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var drawing = TestHelpers.MakeSquareDrawing();
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var candidates = strategy.GenerateCandidates(drawing, 0.25, 0.25);
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Assert.NotEmpty(candidates);
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Assert.All(candidates, c => Assert.Equal(System.Math.PI, c.Part2Rotation));
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}
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}
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