feat(shapes): add ANSI pipe OD lookup table

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-10 17:27:25 -04:00
parent 091e750e1b
commit 57863e16e9
2 changed files with 123 additions and 0 deletions
@@ -0,0 +1,54 @@
+using OpenNest.Shapes;
+
+namespace OpenNest.Tests.Shapes;
+
+public class PipeSizesTests
+{
+    [Fact]
+    public void All_ContainsExpectedCount()
+    {
+        Assert.Equal(35, PipeSizes.All.Count);
+    }
+
+    [Fact]
+    public void All_IsSortedByOuterDiameterAscending()
+    {
+        for (var i = 1; i < PipeSizes.All.Count; i++)
+            Assert.True(PipeSizes.All[i].OuterDiameter > PipeSizes.All[i - 1].OuterDiameter);
+    }
+
+    [Theory]
+    [InlineData("1/8", 0.405)]
+    [InlineData("1/2", 0.840)]
+    [InlineData("2", 2.375)]
+    [InlineData("2 1/2", 2.875)]
+    [InlineData("12", 12.750)]
+    [InlineData("48", 48.000)]
+    public void TryGetOD_KnownLabel_ReturnsExpectedOD(string label, double expected)
+    {
+        Assert.True(PipeSizes.TryGetOD(label, out var od));
+        Assert.Equal(expected, od, 0.001);
+    }
+
+    [Fact]
+    public void TryGetOD_UnknownLabel_ReturnsFalse()
+    {
+        Assert.False(PipeSizes.TryGetOD("bogus", out _));
+    }
+
+    [Fact]
+    public void GetFittingSizes_FiltersByMaxOD()
+    {
+        var results = PipeSizes.GetFittingSizes(3.0).ToList();
+
+        Assert.Contains(results, e => e.Label == "2 1/2");
+        Assert.DoesNotContain(results, e => e.Label == "3");
+        Assert.DoesNotContain(results, e => e.Label == "4");
+    }
+
+    [Fact]
+    public void GetFittingSizes_MaxSmallerThanSmallest_ReturnsEmpty()
+    {
+        Assert.Empty(PipeSizes.GetFittingSizes(0.1));
+    }
+}