41 lines
1.3 KiB
C#
41 lines
1.3 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.IO;
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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_StreamExtensions
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{
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[TestMethod]
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public void Test_StreamExtensions_ReadWrite()
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{
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// bool (1), int (4), float (4), long (8) = 17 bytes.
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// Leave two extra bytes for the partial read (fail).
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Stream stream = new byte[19].AsMemory().AsStream();
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stream.Write(true);
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stream.Write(42);
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stream.Write(3.14f);
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stream.Write(unchecked(uint.MaxValue * 324823489204ul));
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Assert.AreEqual(stream.Position, 17);
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_ = Assert.ThrowsException<ArgumentException>(() => stream.Write(long.MaxValue));
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stream.Position = 0;
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Assert.AreEqual(true, stream.Read<bool>());
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Assert.AreEqual(42, stream.Read<int>());
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Assert.AreEqual(3.14f, stream.Read<float>());
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Assert.AreEqual(unchecked(uint.MaxValue * 324823489204ul), stream.Read<ulong>());
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_ = Assert.ThrowsException<InvalidOperationException>(() => stream.Read<long>());
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}
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}
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