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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#nullable disable
using Microsoft.Cci;
using Xunit;
namespace Microsoft.CodeAnalysis.UnitTests
{
/// <summary>
/// Test <see cref="MetadataWriter.IsTooLongInternal"/>.
/// </summary>
public class MetadataNameLimitsTests
{
[Fact]
public void TestEmpty()
{
CheckIsTooLong("", 5, true);
}
[Fact]
public void TestSingleByte()
{
CheckIsTooLong("a", 5, true);
CheckIsTooLong("abc", 5, true);
CheckIsTooLong("abcdef", 5, false);
}
[Fact]
public void TestDoubleByte()
{
CheckIsTooLong("\u070F", 5, true);
CheckIsTooLong("\u070Fxyz", 5, true);
CheckIsTooLong("abc\u070Fxyz", 5, false);
}
[Fact]
public void TestTripleByte()
{
CheckIsTooLong("\uFFFF", 5, true);
CheckIsTooLong("\uFFFFyz", 5, true);
CheckIsTooLong("abc\uFFFFxyz", 5, false);
}
private static void CheckIsTooLong(string fullName, int maxLength, bool withinLimit)
{
Assert.NotEqual(withinLimit, MetadataWriter.IsTooLongInternal(fullName, maxLength));
}
}
}
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