mirror of
https://github.com/chylex/.NET-Community-Toolkit.git
synced 2025-10-31 09:17:14 +01:00
1018 lines
29 KiB
C#
1018 lines
29 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System;
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using System.Runtime.CompilerServices;
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using CommunityToolkit.HighPerformance.Enumerables;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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namespace CommunityToolkit.HighPerformance.UnitTests;
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/* ====================================================================
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* NOTE
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* ====================================================================
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* All the tests here mirror the ones for ReadOnlySpan2D<T>. See comments
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* in the test file for Span2D<T> for more info on these tests. */
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[TestClass]
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public class Test_ReadOnlySpan2DT
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{
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Empty()
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{
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ReadOnlySpan2D<int> empty1 = default;
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Assert.IsTrue(empty1.IsEmpty);
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Assert.AreEqual(empty1.Length, 0);
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Assert.AreEqual(empty1.Width, 0);
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Assert.AreEqual(empty1.Height, 0);
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ReadOnlySpan2D<string> empty2 = ReadOnlySpan2D<string>.Empty;
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Assert.IsTrue(empty2.IsEmpty);
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Assert.AreEqual(empty2.Length, 0);
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Assert.AreEqual(empty2.Width, 0);
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Assert.AreEqual(empty2.Height, 0);
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}
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#if NETCOREAPP
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_RefConstructor()
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{
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ReadOnlySpan<int> span = stackalloc[]
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{
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1,
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2,
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3,
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4,
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5,
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6
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};
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ReadOnlySpan2D<int> span2d = ReadOnlySpan2D<int>.DangerousCreate(span[0], 2, 3, 0);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 6);
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Assert.AreEqual(span2d.Width, 3);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 1);
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Assert.AreEqual(span2d[1, 2], 6);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => ReadOnlySpan2D<int>.DangerousCreate(Unsafe.AsRef<int>(null), -1, 0, 0));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => ReadOnlySpan2D<int>.DangerousCreate(Unsafe.AsRef<int>(null), 1, -2, 0));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => ReadOnlySpan2D<int>.DangerousCreate(Unsafe.AsRef<int>(null), 1, 0, -5));
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}
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#endif
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_PtrConstructor()
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{
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int* ptr = stackalloc[]
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{
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1,
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2,
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3,
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4,
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5,
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6
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};
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ReadOnlySpan2D<int> span2d = new(ptr, 2, 3, 0);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 6);
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Assert.AreEqual(span2d.Width, 3);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 1);
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Assert.AreEqual(span2d[1, 2], 6);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>((void*)0, -1, 0, 0));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>((void*)0, 1, -2, 0));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>((void*)0, 1, 0, -5));
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<string>((void*)0, 2, 2, 0));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Array1DConstructor()
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{
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int[] array =
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{
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1, 2, 3, 4, 5, 6
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};
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ReadOnlySpan2D<int> span2d = new(array, 1, 2, 2, 1);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 4);
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Assert.AreEqual(span2d.Width, 2);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 2);
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Assert.AreEqual(span2d[1, 1], 6);
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// Same for ReadOnlyMemory2D<T>, we need to check that covariant array conversions are allowed
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_ = new ReadOnlySpan2D<object>(new string[1], 1, 1);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, -99, 1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 0, -10, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 0, 1, 1, -1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 0, 1, -100, 1));
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<int>(array, 0, 10, 1, 120));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Array2DConstructor_1()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 6);
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Assert.AreEqual(span2d.Width, 3);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 1], 2);
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Assert.AreEqual(span2d[1, 2], 6);
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_ = new ReadOnlySpan2D<object>(new string[1, 2]);
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Array2DConstructor_2()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array, 0, 1, 2, 2);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 4);
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Assert.AreEqual(span2d.Width, 2);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 2);
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Assert.AreEqual(span2d[1, 1], 6);
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_ = new ReadOnlySpan2D<object>(new string[1, 2]);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<object>(new string[1, 2], 0, 0, 2, 2));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Array3DConstructor_1()
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{
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int[,,] array =
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{
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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},
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{
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{ 10, 20, 30 },
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{ 40, 50, 60 }
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}
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};
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ReadOnlySpan2D<int> span2d = new(array, 1);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 6);
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Assert.AreEqual(span2d.Width, 3);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 10);
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Assert.AreEqual(span2d[0, 1], 20);
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Assert.AreEqual(span2d[1, 2], 60);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, -1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 20));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_Array3DConstructor_2()
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{
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int[,,] array =
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{
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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},
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{
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{ 10, 20, 30 },
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{ 40, 50, 60 }
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}
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};
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ReadOnlySpan2D<int> span2d = new(array, 1, 0, 1, 2, 2);
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Assert.IsFalse(span2d.IsEmpty);
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Assert.AreEqual(span2d.Length, 4);
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Assert.AreEqual(span2d.Width, 2);
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Assert.AreEqual(span2d.Height, 2);
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Assert.AreEqual(span2d[0, 0], 20);
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Assert.AreEqual(span2d[0, 1], 30);
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Assert.AreEqual(span2d[1, 1], 60);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, -1, 1, 1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 1, -1, 1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 1, 1, -1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 1, 1, 1, -1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 1, 1, 1, 1, -1));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_CopyTo_1()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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int[] target = new int[array.Length];
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span2d.CopyTo(target);
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CollectionAssert.AreEqual(array, target);
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<int>(array).CopyTo(Span<int>.Empty));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_CopyTo_2()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array, 0, 1, 2, 2);
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int[] target = new int[4];
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span2d.CopyTo(target);
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int[] expected = { 2, 3, 5, 6 };
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CollectionAssert.AreEqual(target, expected);
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<int>(array).CopyTo(Span<int>.Empty));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_CopyTo2D_1()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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int[,] target = new int[2, 3];
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span2d.CopyTo(target);
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CollectionAssert.AreEqual(array, target);
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<int>(array).CopyTo(Span2D<int>.Empty));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_CopyTo2D_2()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array, 0, 1, 2, 2);
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int[,] target = new int[2, 2];
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span2d.CopyTo(target);
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int[,] expected =
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{
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{ 2, 3 },
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{ 5, 6 }
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};
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CollectionAssert.AreEqual(target, expected);
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_ = Assert.ThrowsException<ArgumentException>(() => new ReadOnlySpan2D<int>(array).CopyTo(new Span2D<int>(target)));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_TryCopyTo()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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int[] target = new int[array.Length];
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Assert.IsTrue(span2d.TryCopyTo(target));
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Assert.IsFalse(span2d.TryCopyTo(Span<int>.Empty));
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}
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[TestMethod]
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public void Test_ReadOnlySpan2DT_TryCopyTo2D()
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{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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int[,] target = new int[2, 3];
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Assert.IsTrue(span2d.TryCopyTo(target));
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Assert.IsFalse(span2d.TryCopyTo(Span2D<int>.Empty));
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}
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_GetPinnableReference()
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{
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Assert.IsTrue(Unsafe.AreSame(
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ref Unsafe.AsRef<int>(null),
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ref ReadOnlySpan2D<int>.Empty.GetPinnableReference()));
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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ref int r0 = ref span2d.GetPinnableReference();
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Assert.IsTrue(Unsafe.AreSame(ref r0, ref array[0, 0]));
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}
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_DangerousGetReference()
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{
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Assert.IsTrue(Unsafe.AreSame(
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ref Unsafe.AsRef<int>(null),
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ref ReadOnlySpan2D<int>.Empty.DangerousGetReference()));
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
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ReadOnlySpan2D<int> span2d = new(array);
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ref int r0 = ref span2d.DangerousGetReference();
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Assert.IsTrue(Unsafe.AreSame(ref r0, ref array[0, 0]));
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}
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#if NETCOREAPP3_1_OR_GREATER
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_Index_Indexer_1()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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ref int arrayRef = ref array[1, 3];
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ref readonly int span2dRef = ref span2d[1, ^1];
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Assert.IsTrue(Unsafe.AreSame(ref arrayRef, ref Unsafe.AsRef(in span2dRef)));
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}
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_Index_Indexer_2()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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ref int arrayRef = ref array[2, 1];
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ref readonly int span2dRef = ref span2d[^2, ^3];
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Assert.IsTrue(Unsafe.AreSame(ref arrayRef, ref Unsafe.AsRef(in span2dRef)));
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}
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[TestMethod]
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[ExpectedException(typeof(IndexOutOfRangeException))]
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public unsafe void Test_ReadOnlySpan2DT_Index_Indexer_Fail()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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ref readonly int span2dRef = ref span2d[^6, 2];
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}
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_Range_Indexer_1()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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ReadOnlySpan2D<int> slice = span2d[1.., 1..];
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Assert.AreEqual(slice.Length, 9);
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Assert.IsTrue(Unsafe.AreSame(ref array[1, 1], ref Unsafe.AsRef(in slice[0, 0])));
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Assert.IsTrue(Unsafe.AreSame(ref array[3, 3], ref Unsafe.AsRef(in slice[2, 2])));
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}
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[TestMethod]
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public unsafe void Test_ReadOnlySpan2DT_Range_Indexer_2()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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ReadOnlySpan2D<int> slice = span2d[0..^2, 1..^1];
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Assert.AreEqual(slice.Length, 4);
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Assert.IsTrue(Unsafe.AreSame(ref array[0, 1], ref Unsafe.AsRef(in slice[0, 0])));
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Assert.IsTrue(Unsafe.AreSame(ref array[1, 2], ref Unsafe.AsRef(in slice[1, 1])));
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}
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[TestMethod]
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[ExpectedException(typeof(ArgumentOutOfRangeException))]
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public unsafe void Test_ReadOnlySpan2DT_Range_Indexer_Fail()
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{
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int[,] array = new int[4, 4];
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ReadOnlySpan2D<int> span2d = new(array);
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_ = span2d[0..6, 2..^1];
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Assert.Fail();
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}
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#endif
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[TestMethod]
|
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public void Test_ReadOnlySpan2DT_Slice_1()
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|
{
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int[,] array =
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{
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{ 1, 2, 3 },
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{ 4, 5, 6 }
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};
|
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ReadOnlySpan2D<int> span2d = new(array);
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ReadOnlySpan2D<int> slice1 = span2d.Slice(1, 1, 1, 2);
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Assert.AreEqual(slice1.Length, 2);
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Assert.AreEqual(slice1.Height, 1);
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Assert.AreEqual(slice1.Width, 2);
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Assert.AreEqual(slice1[0, 0], 5);
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Assert.AreEqual(slice1[0, 1], 6);
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ReadOnlySpan2D<int> slice2 = span2d.Slice(0, 1, 2, 2);
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Assert.AreEqual(slice2.Length, 4);
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Assert.AreEqual(slice2.Height, 2);
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Assert.AreEqual(slice2.Width, 2);
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Assert.AreEqual(slice2[0, 0], 2);
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Assert.AreEqual(slice2[1, 0], 5);
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Assert.AreEqual(slice2[1, 1], 6);
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(-1, 1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(1, -1, 1, 1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(1, 1, 1, -1));
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_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(1, 1, -1, 1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(10, 1, 1, 1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(1, 12, 1, 12));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).Slice(1, 1, 55, 1));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_Slice_2()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
ReadOnlySpan2D<int> slice1 = span2d.Slice(0, 0, 2, 2);
|
|
|
|
Assert.AreEqual(slice1.Length, 4);
|
|
Assert.AreEqual(slice1.Height, 2);
|
|
Assert.AreEqual(slice1.Width, 2);
|
|
Assert.AreEqual(slice1[0, 0], 1);
|
|
Assert.AreEqual(slice1[1, 1], 5);
|
|
|
|
ReadOnlySpan2D<int> slice2 = slice1.Slice(1, 0, 1, 2);
|
|
|
|
Assert.AreEqual(slice2.Length, 2);
|
|
Assert.AreEqual(slice2.Height, 1);
|
|
Assert.AreEqual(slice2.Width, 2);
|
|
Assert.AreEqual(slice2[0, 0], 4);
|
|
Assert.AreEqual(slice2[0, 1], 5);
|
|
|
|
ReadOnlySpan2D<int> slice3 = slice2.Slice(0, 1, 1, 1);
|
|
|
|
Assert.AreEqual(slice3.Length, 1);
|
|
Assert.AreEqual(slice3.Height, 1);
|
|
Assert.AreEqual(slice3.Width, 1);
|
|
Assert.AreEqual(slice3[0, 0], 5);
|
|
}
|
|
|
|
#if NETCOREAPP
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_GetRowReadOnlySpan()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
ReadOnlySpan<int> span = span2d.GetRowSpan(1);
|
|
|
|
Assert.IsTrue(Unsafe.AreSame(
|
|
ref Unsafe.AsRef(span[0]),
|
|
ref array[1, 0]));
|
|
Assert.IsTrue(Unsafe.AreSame(
|
|
ref Unsafe.AsRef(span[2]),
|
|
ref array[1, 2]));
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetRowSpan(-1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetRowSpan(5));
|
|
}
|
|
#endif
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_TryGetSpan_From1DArray_1()
|
|
{
|
|
int[] array = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array, 3, 3);
|
|
|
|
bool success = span2d.TryGetSpan(out ReadOnlySpan<int> span);
|
|
|
|
Assert.IsTrue(success);
|
|
Assert.AreEqual(span.Length, span2d.Length);
|
|
Assert.IsTrue(Unsafe.AreSame(ref array[0], ref Unsafe.AsRef(in span[0])));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_TryGetSpan_From1DArray_2()
|
|
{
|
|
int[] array = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
|
|
|
|
ReadOnlySpan2D<int> span2d = new ReadOnlySpan2D<int>(array, 3, 3).Slice(1, 0, 2, 3);
|
|
|
|
bool success = span2d.TryGetSpan(out ReadOnlySpan<int> span);
|
|
|
|
Assert.IsTrue(success);
|
|
Assert.AreEqual(span.Length, span2d.Length);
|
|
Assert.IsTrue(Unsafe.AreSame(ref array[3], ref Unsafe.AsRef(in span[0])));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_TryGetSpan_From1DArray_3()
|
|
{
|
|
int[] array = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
|
|
|
|
ReadOnlySpan2D<int> span2d = new ReadOnlySpan2D<int>(array, 3, 3).Slice(0, 1, 3, 2);
|
|
|
|
bool success = span2d.TryGetSpan(out ReadOnlySpan<int> span);
|
|
|
|
Assert.IsFalse(success);
|
|
Assert.AreEqual(span.Length, 0);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_TryGetReadOnlySpan_From2DArray_1()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
bool success = span2d.TryGetSpan(out ReadOnlySpan<int> span);
|
|
|
|
#if NETFRAMEWORK
|
|
// Can't get a ReadOnlySpan<T> over a T[,] array on .NET Standard 2.0
|
|
Assert.IsFalse(success);
|
|
Assert.AreEqual(span.Length, 0);
|
|
#else
|
|
Assert.IsTrue(success);
|
|
Assert.AreEqual(span.Length, span2d.Length);
|
|
#endif
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_TryGetReadOnlySpan_From2DArray_2()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array, 0, 0, 2, 2);
|
|
|
|
bool success = span2d.TryGetSpan(out ReadOnlySpan<int> span);
|
|
|
|
Assert.IsFalse(success);
|
|
Assert.IsTrue(span.IsEmpty);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ToArray_1()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
int[,] copy = span2d.ToArray();
|
|
|
|
Assert.AreEqual(copy.GetLength(0), array.GetLength(0));
|
|
Assert.AreEqual(copy.GetLength(1), array.GetLength(1));
|
|
|
|
CollectionAssert.AreEqual(array, copy);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ToArray_2()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array, 0, 0, 2, 2);
|
|
|
|
int[,] copy = span2d.ToArray();
|
|
|
|
Assert.AreEqual(copy.GetLength(0), 2);
|
|
Assert.AreEqual(copy.GetLength(1), 2);
|
|
|
|
int[,] expected =
|
|
{
|
|
{ 1, 2 },
|
|
{ 4, 5 }
|
|
};
|
|
|
|
CollectionAssert.AreEqual(expected, copy);
|
|
}
|
|
|
|
[TestMethod]
|
|
[ExpectedException(typeof(NotSupportedException))]
|
|
public void Test_ReadOnlySpan2DT_Equals()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
_ = span2d.Equals(null);
|
|
}
|
|
|
|
[TestMethod]
|
|
[ExpectedException(typeof(NotSupportedException))]
|
|
public void Test_ReadOnlySpan2DT_GetHashCode()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
_ = span2d.GetHashCode();
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ToString()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d = new(array);
|
|
|
|
string text = span2d.ToString();
|
|
|
|
const string expected = "CommunityToolkit.HighPerformance.ReadOnlySpan2D<System.Int32>[2, 3]";
|
|
|
|
Assert.AreEqual(text, expected);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_opEquals()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d_1 = new(array);
|
|
ReadOnlySpan2D<int> span2d_2 = new(array);
|
|
|
|
Assert.IsTrue(span2d_1 == span2d_2);
|
|
Assert.IsFalse(span2d_1 == ReadOnlySpan2D<int>.Empty);
|
|
Assert.IsTrue(ReadOnlySpan2D<int>.Empty == ReadOnlySpan2D<int>.Empty);
|
|
|
|
ReadOnlySpan2D<int> span2d_3 = new(array, 0, 0, 2, 2);
|
|
|
|
Assert.IsFalse(span2d_1 == span2d_3);
|
|
Assert.IsFalse(span2d_3 == ReadOnlySpan2D<int>.Empty);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ImplicitCast()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span2d_1 = array;
|
|
ReadOnlySpan2D<int> span2d_2 = new(array);
|
|
|
|
Assert.IsTrue(span2d_1 == span2d_2);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_GetRow()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
int i = 0;
|
|
foreach (ref readonly int value in new ReadOnlySpan2D<int>(array).GetRow(1))
|
|
{
|
|
Assert.IsTrue(Unsafe.AreSame(ref Unsafe.AsRef(value), ref array[1, i++]));
|
|
}
|
|
|
|
ReadOnlyRefEnumerable<int> enumerable = new ReadOnlySpan2D<int>(array).GetRow(1);
|
|
|
|
int[] expected = { 4, 5, 6 };
|
|
|
|
CollectionAssert.AreEqual(enumerable.ToArray(), expected);
|
|
|
|
Assert.AreSame(default(ReadOnlyRefEnumerable<int>).ToArray(), Array.Empty<int>());
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetRow(-1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetRow(2));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetRow(1000));
|
|
}
|
|
|
|
[TestMethod]
|
|
public unsafe void Test_ReadOnlySpan2DT_Pointer_GetRow()
|
|
{
|
|
int* array = stackalloc[]
|
|
{
|
|
1,
|
|
2,
|
|
3,
|
|
4,
|
|
5,
|
|
6
|
|
};
|
|
|
|
int i = 0;
|
|
foreach (ref readonly int value in new ReadOnlySpan2D<int>(array, 2, 3, 0).GetRow(1))
|
|
{
|
|
Assert.IsTrue(Unsafe.AreSame(ref Unsafe.AsRef(value), ref array[3 + i++]));
|
|
}
|
|
|
|
ReadOnlyRefEnumerable<int> enumerable = new ReadOnlySpan2D<int>(array, 2, 3, 0).GetRow(1);
|
|
|
|
int[] expected = { 4, 5, 6 };
|
|
|
|
CollectionAssert.AreEqual(enumerable.ToArray(), expected);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetRow(-1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetRow(2));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetRow(1000));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_GetColumn()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
int i = 0;
|
|
foreach (ref readonly int value in new ReadOnlySpan2D<int>(array).GetColumn(1))
|
|
{
|
|
Assert.IsTrue(Unsafe.AreSame(ref Unsafe.AsRef(value), ref array[i++, 1]));
|
|
}
|
|
|
|
ReadOnlyRefEnumerable<int> enumerable = new ReadOnlySpan2D<int>(array).GetColumn(2);
|
|
|
|
int[] expected = { 3, 6 };
|
|
|
|
CollectionAssert.AreEqual(enumerable.ToArray(), expected);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetColumn(-1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetColumn(3));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array).GetColumn(1000));
|
|
}
|
|
|
|
[TestMethod]
|
|
public unsafe void Test_ReadOnlySpan2DT_Pointer_GetColumn()
|
|
{
|
|
int* array = stackalloc[]
|
|
{
|
|
1,
|
|
2,
|
|
3,
|
|
4,
|
|
5,
|
|
6
|
|
};
|
|
|
|
int i = 0;
|
|
foreach (ref readonly int value in new ReadOnlySpan2D<int>(array, 2, 3, 0).GetColumn(1))
|
|
{
|
|
Assert.IsTrue(Unsafe.AreSame(ref Unsafe.AsRef(value), ref array[(i++ * 3) + 1]));
|
|
}
|
|
|
|
ReadOnlyRefEnumerable<int> enumerable = new ReadOnlySpan2D<int>(array, 2, 3, 0).GetColumn(2);
|
|
|
|
int[] expected = { 3, 6 };
|
|
|
|
CollectionAssert.AreEqual(enumerable.ToArray(), expected);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetColumn(-1));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetColumn(3));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => new ReadOnlySpan2D<int>(array, 2, 3, 0).GetColumn(1000));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_GetEnumerator()
|
|
{
|
|
int[,] array =
|
|
{
|
|
{ 1, 2, 3 },
|
|
{ 4, 5, 6 }
|
|
};
|
|
|
|
int[] result = new int[4];
|
|
int i = 0;
|
|
|
|
foreach (int item in new ReadOnlySpan2D<int>(array, 0, 1, 2, 2))
|
|
{
|
|
result[i++] = item;
|
|
}
|
|
|
|
int[] expected = { 2, 3, 5, 6 };
|
|
|
|
CollectionAssert.AreEqual(result, expected);
|
|
}
|
|
|
|
[TestMethod]
|
|
public unsafe void Test_ReadOnlySpan2DT_Pointer_GetEnumerator()
|
|
{
|
|
int* array = stackalloc[]
|
|
{
|
|
1,
|
|
2,
|
|
3,
|
|
4,
|
|
5,
|
|
6
|
|
};
|
|
|
|
int[] result = new int[4];
|
|
int i = 0;
|
|
|
|
foreach (int item in new ReadOnlySpan2D<int>(array + 1, 2, 2, 1))
|
|
{
|
|
result[i++] = item;
|
|
}
|
|
|
|
int[] expected = { 2, 3, 5, 6 };
|
|
|
|
CollectionAssert.AreEqual(result, expected);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_GetEnumerator_Empty()
|
|
{
|
|
ReadOnlySpan2D<int>.Enumerator enumerator = ReadOnlySpan2D<int>.Empty.GetEnumerator();
|
|
|
|
Assert.IsFalse(enumerator.MoveNext());
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ReadOnlyRefEnumerable_Misc()
|
|
{
|
|
int[,] array1 =
|
|
{
|
|
{ 1, 2, 3, 4 },
|
|
{ 5, 6, 7, 8 },
|
|
{ 9, 10, 11, 12 },
|
|
{ 13, 14, 15, 16 }
|
|
};
|
|
|
|
ReadOnlySpan2D<int> span1 = array1;
|
|
|
|
int[,] array2 = new int[4, 4];
|
|
|
|
// Copy to enumerable with source step == 1, destination step == 1
|
|
span1.GetRow(0).CopyTo(array2.GetRow(0));
|
|
|
|
// Copy enumerable with source step == 1, destination step != 1
|
|
span1.GetRow(1).CopyTo(array2.GetColumn(1));
|
|
|
|
// Copy enumerable with source step != 1, destination step == 1
|
|
span1.GetColumn(2).CopyTo(array2.GetRow(2));
|
|
|
|
// Copy enumerable with source step != 1, destination step != 1
|
|
span1.GetColumn(3).CopyTo(array2.GetColumn(3));
|
|
|
|
int[,] result =
|
|
{
|
|
{ 1, 5, 3, 4 },
|
|
{ 0, 6, 0, 8 },
|
|
{ 3, 7, 11, 12 },
|
|
{ 0, 8, 0, 16 }
|
|
};
|
|
|
|
CollectionAssert.AreEqual(array2, result);
|
|
|
|
// Test a valid and an invalid TryCopyTo call with the RefEnumerable<T> overload
|
|
bool shouldBeTrue = span1.GetRow(0).TryCopyTo(array2.GetColumn(0));
|
|
bool shouldBeFalse = span1.GetRow(0).TryCopyTo(default(RefEnumerable<int>));
|
|
|
|
result = new[,]
|
|
{
|
|
{ 1, 5, 3, 4 },
|
|
{ 2, 6, 0, 8 },
|
|
{ 3, 7, 11, 12 },
|
|
{ 4, 8, 0, 16 }
|
|
};
|
|
|
|
CollectionAssert.AreEqual(array2, result);
|
|
|
|
Assert.IsTrue(shouldBeTrue);
|
|
Assert.IsFalse(shouldBeFalse);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_ReadOnlySpan2DT_ReadOnlyRefEnumerable_Cast()
|
|
{
|
|
int[,] array1 =
|
|
{
|
|
{ 1, 2, 3, 4 },
|
|
{ 5, 6, 7, 8 },
|
|
{ 9, 10, 11, 12 },
|
|
{ 13, 14, 15, 16 }
|
|
};
|
|
|
|
int[] result = { 5, 6, 7, 8 };
|
|
|
|
// Cast a RefEnumerable<T> to a readonly one and verify the contents
|
|
int[] row = ((ReadOnlyRefEnumerable<int>)array1.GetRow(1)).ToArray();
|
|
|
|
CollectionAssert.AreEqual(result, row);
|
|
}
|
|
}
|