48 lines
1.4 KiB
C#
48 lines
1.4 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;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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namespace CommunityToolkit.HighPerformance.UnitTests.Extensions;
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[TestClass]
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public class Test_StringExtensions
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{
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[TestMethod]
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public void Test_StringExtensions_DangerousGetReference()
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{
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string text = "Hello, world!";
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ref char r0 = ref text.DangerousGetReference();
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ref char r1 = ref Unsafe.AsRef(text.AsSpan()[0]);
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Assert.IsTrue(Unsafe.AreSame(ref r0, ref r1));
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}
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[TestMethod]
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public void Test_StringExtensions_DangerousGetReferenceAt_Zero()
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{
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string text = "Hello, world!";
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ref char r0 = ref text.DangerousGetReference();
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ref char r1 = ref text.DangerousGetReferenceAt(0);
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Assert.IsTrue(Unsafe.AreSame(ref r0, ref r1));
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}
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[TestMethod]
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public void Test_StringExtensions_DangerousGetReferenceAt_Index()
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{
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string text = "Hello, world!";
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ref char r0 = ref text.DangerousGetReferenceAt(5);
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ref char r1 = ref Unsafe.AsRef(text.AsSpan()[5]);
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Assert.IsTrue(Unsafe.AreSame(ref r0, ref r1));
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}
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}
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