Dev/guma/refactor sets

src/GShark.Test.XUnit/Core/CollectionHelpersTests.cs

@@ -0,0 +1,86 @@
+using FluentAssertions;
+using GShark.Core;
+using GShark.Geometry;
+using System;
+using System.Collections.Generic;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace GShark.Test.XUnit.Core
+{
+    public class CollectionHelpersTests
+    {
+        private readonly ITestOutputHelper _testOutput;
+
+        public CollectionHelpersTests(ITestOutputHelper testOutput)
+        {
+            _testOutput = testOutput;
+        }
+
+        public static IEnumerable<object[]> DataToRepeat =>
+            new List<object[]>
+            {
+                new object[] { 10, 7},
+                new object[] { new Vector(){ 14, -12, 7}, 5},
+                new object[] { 2.7, 8 },
+                new object[] { 1.0, 0 }
+            };
+
+        [Theory]
+        [MemberData(nameof(DataToRepeat))]
+        public void It_Returns_A_Set_Of_Repeated_Data_Of_A_Specific_Length(object data, int length)
+        {
+            // Act 
+            List<object> repeatedData = CollectionHelpers.RepeatData(data, length);
+
+            // Assert
+            repeatedData.Should().HaveCount(length);
+            repeatedData.Should().BeEquivalentTo(new List<object>(repeatedData));
+        }
+
+        [Fact]
+        public void RepeatData_Throws_An_Exception_If_The_Value_Is_Negative_Or_Zero()
+        {
+            // Act 
+            Func<object> resultFunction = () => CollectionHelpers.RepeatData(5, -1);
+
+            // Assert
+            resultFunction.Should().Throw<Exception>().WithMessage("Length can not be negative.");
+        }
+
+
+        [Fact]
+        public void It_Transposes_A_2D_List_Of_Points()
+        {
+            // Arrange
+            List<List<Point3>> pts = new List<List<Point3>>
+            {
+                new()
+                {
+                    new Point3( 0d, -10d, 0),
+                    new Point3( 10d, -10d, 10)
+                },
+                new()
+                {
+                    new Point3( 0d, -30d, 0),
+                    new Point3( 10d, -30d, 0)
+
+                },
+                new()
+                {
+                    new Point3( 0d, 0d, 50),
+                    new Point3( 10d, 0d, 0)
+                }
+            };
+
+            // Act
+            List<List<Point3>> transposedPointData = CollectionHelpers.Transpose2DArray(pts);
+
+            // Assert
+            transposedPointData.Count.Should().Be(2);
+            transposedPointData[0].Count.Should().Be(3);
+            transposedPointData[0][2].Should().BeEquivalentTo(pts[2][0]);
+            transposedPointData[1][2].Should().BeEquivalentTo(pts[2][1]);
+        }
+    }
+}

src/GShark.Test.XUnit/Core/IntervalTests.cs

@@ -1,11 +1,21 @@
-using FluentAssertions;
+using System.Collections.Generic;
+using FluentAssertions;
 using GShark.Core;
 using Xunit;
 
 namespace GShark.Test.XUnit.Core
 {
     public class IntervalTests
     {
+        public static IEnumerable<object[]> RangesToBeDefined =>
+            new List<object[]>
+            {
+                new object[] { new Interval(0, 1), 4},
+                new object[] { new Interval(2, 30), 3},
+                new object[] { new Interval(-10, 30), 6},
+                new object[] { new Interval(1, 10), 0}
+            };
+
         [Fact]
         public void It_Returns_An_Interval()
         {
@@ -118,5 +128,20 @@ public void It_Returns_The_Minimum_Value_In_The_Interval()
             //Assert
             interval.Min.Should().Be(-0.5);
         }
+
+        [Theory]
+        [MemberData(nameof(RangesToBeDefined))]
+        public void It_Divides_An_Interval_In_Equal_Parts(Interval interval, int step)
+        {
+            // Arrange
+            IList<double> linearSpace = Interval.Divide(interval, step);
+
+            // Act
+            _ = string.Join(',', linearSpace);
+
+            // Assert
+            linearSpace.Should().NotBeNull();
+            linearSpace.Should().BeEquivalentTo(new List<double>(linearSpace));
+        }
     }
 }

src/GShark.Test.XUnit/Geometry/NurbsCurveTests.cs

@@ -40,7 +40,7 @@ public void It_Returns_A_NurbsCurve()
             // Assert
             nurbsCurve.Should().NotBeNull();
             nurbsCurve.Degree.Should().Be(3);
-            nurbsCurve.Weights.Should().BeEquivalentTo(Sets.RepeatData(1.0, 6));
+            nurbsCurve.Weights.Should().BeEquivalentTo(CollectionHelpers.RepeatData(1.0, 6));
         }
 
         [Fact]
@@ -108,7 +108,7 @@ public void It_Creates_A_NurbsCurve_From_ControlPoints_And_Degree()
             // Assert
             nurbsCurve.Should().NotBeNull();
             nurbsCurve.Degree.Should().Be(2);
-            nurbsCurve.Weights.Should().BeEquivalentTo(Sets.RepeatData(1.0, CurveData.pts.Count));
+            nurbsCurve.Weights.Should().BeEquivalentTo(CollectionHelpers.RepeatData(1.0, CurveData.pts.Count));
             nurbsCurve.Knots.Should().BeEquivalentTo(new KnotVector(CurveData.degree, CurveData.pts.Count));
         }