using System.Runtime.InteropServices;

using CSharpDB.Native;

namespace CSharpDB.Tests;

public sealed class NativeStringEncodingTests

{

[Fact]

public void StringCache_ReturnsUtf8Pointers()

{

IntPtr resultHandle = new(1234);

const string value = "naïve café";

try

{

IntPtr ptr = StringCache.GetOrAdd(resultHandle, 0, value);

Assert.Equal(value, Marshal.PtrToStringUTF8(ptr));

}

finally

{

StringCache.Remove(resultHandle);

}

}

[Fact]

public void ErrorState_ReturnsUtf8Pointers()

{

const string message = "naïve café";

try

{

ErrorState.Set(new InvalidOperationException(message));

IntPtr ptr = ErrorState.GetMessagePtr();

Assert.NotEqual(IntPtr.Zero, ptr);

Assert.Equal(message, Marshal.PtrToStringUTF8(ptr));

}

finally

{

ErrorState.Clear();

}

}

}