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195 lines
8.1 KiB
195 lines
8.1 KiB
// <copyright file="DenseMatrixTests.cs" company="Math.NET">
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// Math.NET Numerics, part of the Math.NET Project
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// http://numerics.mathdotnet.com
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// http://github.com/mathnet/mathnet-numerics
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// http://mathnetnumerics.codeplex.com
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//
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// Copyright (c) 2009-2013 Math.NET
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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// </copyright>
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namespace MathNet.Numerics.UnitTests.LinearAlgebraTests.Complex32
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{
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using LinearAlgebra.Complex32;
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using NUnit.Framework;
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using System;
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using System.Collections.Generic;
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using Complex32 = Numerics.Complex32;
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/// <summary>
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/// Dense matrix tests.
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/// </summary>
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public class DenseMatrixTests : MatrixTests
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{
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/// <summary>
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/// Creates a matrix for the given number of rows and columns.
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/// </summary>
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/// <param name="rows">The number of rows.</param>
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/// <param name="columns">The number of columns.</param>
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/// <returns>A matrix with the given dimensions.</returns>
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protected override Matrix CreateMatrix(int rows, int columns)
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{
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return new DenseMatrix(rows, columns);
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}
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/// <summary>
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/// Creates a matrix from a 2D array.
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/// </summary>
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/// <param name="data">The 2D array to create this matrix from.</param>
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/// <returns>A matrix with the given values.</returns>
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protected override Matrix CreateMatrix(Complex32[,] data)
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{
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return DenseMatrix.OfArray(data);
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}
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/// <summary>
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/// Creates a vector of the given size.
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/// </summary>
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/// <param name="size">The size of the vector to create.
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/// </param>
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/// <returns>The new vector. </returns>
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protected override Vector CreateVector(int size)
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{
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return new DenseVector(size);
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}
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/// <summary>
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/// Creates a vector from an array.
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/// </summary>
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/// <param name="data">The array to create this vector from.</param>
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/// <returns>The new vector. </returns>
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protected override Vector CreateVector(Complex32[] data)
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{
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return new DenseVector(data);
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}
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/// <summary>
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/// Can create a matrix form array.
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/// </summary>
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[Test]
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public void CanCreateMatrixFrom1DArray()
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{
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var testData = new Dictionary<string, Matrix>
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{
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{"Singular3x3", new DenseMatrix(3, 3, new[] {new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(2.0f, 1), new Complex32(2.0f, 1), new Complex32(2.0f, 1)})},
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{"Square3x3", new DenseMatrix(3, 3, new[] {new Complex32(-1.1f, 1), Complex32.Zero, new Complex32(-4.4f, 1), new Complex32(-2.2f, 1), new Complex32(1.1f, 1), new Complex32(5.5f, 1), new Complex32(-3.3f, 1), new Complex32(2.2f, 1), new Complex32(6.6f, 1)})},
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{"Square4x4", new DenseMatrix(4, 4, new[] {new Complex32(-1.1f, 1), Complex32.Zero, new Complex32(1.0f, 1), new Complex32(-4.4f, 1), new Complex32(-2.2f, 1), new Complex32(1.1f, 1), new Complex32(2.1f, 1), new Complex32(5.5f, 1), new Complex32(-3.3f, 1), new Complex32(2.2f, 1), new Complex32(6.2f, 1), new Complex32(6.6f, 1), new Complex32(-4.4f, 1), new Complex32(3.3f, 1), new Complex32(4.3f, 1), new Complex32(-7.7f, 1)})},
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{"Tall3x2", new DenseMatrix(3, 2, new[] {new Complex32(-1.1f, 1), Complex32.Zero, new Complex32(-4.4f, 1), new Complex32(-2.2f, 1), new Complex32(1.1f, 1), new Complex32(5.5f, 1)})},
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{"Wide2x3", new DenseMatrix(2, 3, new[] {new Complex32(-1.1f, 1), Complex32.Zero, new Complex32(-2.2f, 1), new Complex32(1.1f, 1), new Complex32(-3.3f, 1), new Complex32(2.2f, 1)})}
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};
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foreach (var name in testData.Keys)
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{
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Assert.AreEqual(TestMatrices[name], testData[name]);
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}
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}
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/// <summary>
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/// Matrix from array is a reference.
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/// </summary>
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[Test]
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public void MatrixFrom1DArrayIsReference()
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{
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var data = new[] {new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(1.0f, 1), new Complex32(2.0f, 1), new Complex32(2.0f, 1), new Complex32(2.0f, 1)};
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var matrix = new DenseMatrix(3, 3, data);
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matrix[0, 0] = new Complex32(10.0f, 1);
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Assert.AreEqual(new Complex32(10.0f, 1), data[0]);
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}
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/// <summary>
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/// Matrix from two-dimensional array is a copy.
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/// </summary>
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[Test]
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public void MatrixFrom2DArrayIsCopy()
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{
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var matrix = DenseMatrix.OfArray(TestData2D["Singular3x3"]);
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matrix[0, 0] = 10.0f;
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Assert.AreEqual(new Complex32(1.0f, 1), TestData2D["Singular3x3"][0, 0]);
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}
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/// <summary>
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/// Can create a matrix from two-dimensional array.
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/// </summary>
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/// <param name="name">Matrix name.</param>
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[TestCase("Singular3x3")]
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[TestCase("Singular4x4")]
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[TestCase("Square3x3")]
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[TestCase("Square4x4")]
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[TestCase("Tall3x2")]
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[TestCase("Wide2x3")]
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public void CanCreateMatrixFrom2DArray(string name)
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{
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var matrix = DenseMatrix.OfArray(TestData2D[name]);
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for (var i = 0; i < TestData2D[name].GetLength(0); i++)
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{
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for (var j = 0; j < TestData2D[name].GetLength(1); j++)
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{
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Assert.AreEqual(TestData2D[name][i, j], matrix[i, j]);
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}
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}
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}
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/// <summary>
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/// Can create a matrix with uniform values.
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/// </summary>
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[Test]
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public void CanCreateMatrixWithUniformValues()
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{
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var matrix = DenseMatrix.Create(10, 10, new Complex32(10.0f, 1));
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for (var i = 0; i < matrix.RowCount; i++)
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{
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for (var j = 0; j < matrix.ColumnCount; j++)
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{
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Assert.AreEqual(matrix[i, j], new Complex32(10.0f, 1));
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}
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}
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}
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/// <summary>
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/// Can create an identity matrix.
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/// </summary>
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[Test]
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public void CanCreateIdentity()
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{
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var matrix = DenseMatrix.Identity(5);
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for (var i = 0; i < matrix.RowCount; i++)
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{
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for (var j = 0; j < matrix.ColumnCount; j++)
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{
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Assert.AreEqual(i == j ? Complex32.One : Complex32.Zero, matrix[i, j]);
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}
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}
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}
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/// <summary>
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/// Identity with wrong order throws <c>ArgumentOutOfRangeException</c>.
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/// </summary>
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/// <param name="order">The size of the square matrix</param>
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[TestCase(0)]
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[TestCase(-1)]
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public void IdentityWithWrongOrderThrowsArgumentOutOfRangeException(int order)
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{
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Assert.Throws<ArgumentOutOfRangeException>(() => DenseMatrix.Identity(order));
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}
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}
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}
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