tests: added missing file

src/UnitTests/LinearAlgebraTests/Double/MatrixLoader.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace MathNet.Numerics.UnitTests.LinearAlgebraTests.Double
+{
+    using LinearAlgebra.Double;
+    using MbUnit.Framework;
+
+    public abstract class MatrixLoader
+    {
+        protected Dictionary<string, double[,]> testData2D;
+        protected Dictionary<string, Matrix> testMatrices;
+
+        protected abstract Matrix CreateMatrix(int rows, int columns);
+        protected abstract Matrix CreateMatrix(double[,] data);
+        protected abstract Vector CreateVector(int size);
+        protected abstract Vector CreateVector(double[] data);
+
+        [SetUp]
+        public void SetupMatrices()
+        {
+            testData2D = new Dictionary<string, double[,]>();
+            testData2D.Add("Singular3x3", new double[,] { { 1, 1, 2 }, { 1, 1, 2 }, { 1, 1, 2 } });
+            testData2D.Add("Square3x3", new double[,] { { -1.1, -2.2, -3.3 }, { 0, 1.1, 2.2 }, { -4.4, 5.5, 6.6 } });
+            testData2D.Add("Square4x4", new double[,] { { -1.1, -2.2, -3.3, -4.4 }, { 0, 1.1, 2.2, 3.3 }, { 1.0, 2.1, 6.2, 4.3 }, { -4.4, 5.5, 6.6, -7.7 } });
+            testData2D.Add("Singular4x4", new double[,] { { -1.1, -2.2, -3.3, -4.4 }, { -1.1, -2.2, -3.3, -4.4 }, { -1.1, -2.2, -3.3, -4.4 }, { -1.1, -2.2, -3.3, -4.4 } });
+            testData2D.Add("Tall3x2", new double[,] { { -1.1, -2.2 }, { 0, 1.1 }, { -4.4, 5.5 } });
+            testData2D.Add("Wide2x3", new double[,] { { -1.1, -2.2, -3.3 }, { 0, 1.1, 2.2 } });
+
+            testMatrices = new Dictionary<string, Matrix>();
+            foreach (var name in testData2D.Keys)
+            {
+                testMatrices.Add(name, CreateMatrix(testData2D[name]));
+            }
+        }
+
+    }
+}