Capture `Console.Out` in an XUnit `ITestOutputHelper`

TestOutputHelperTextWriterAdapter.cs

public class TestOutputHelperTextWriterAdapter : TextWriter
{
    private readonly ITestOutputHelper output;

    private string currentLine = "";

    public TestOutputHelperTextWriterAdapter(ITestOutputHelper output)
    {
        this.output = output;
    }

    public override Encoding Encoding { get; }
    public bool Enabled { get; set; } = true;

    public override void Write(char value)
    {
        if (!Enabled) { return; }
        if (value == '\n')
        {
            WriteCurrentLine();
        }
        else
        {
            currentLine += value;
        }
    }

    private void WriteCurrentLine()
    {
        output.WriteLine(currentLine);
        currentLine = "";
    }

    protected override void Dispose(bool disposing)
    {
        if (currentLine != "") { WriteCurrentLine(); }
        base.Dispose(disposing);
    }
}

XUnitOutputDemo.cs

public class OutputDemo : IDisposable
{
    private readonly TextWriter origConsoleOut;
    private readonly TestOutputHelperTextWriterAdapter outAdapter;

    public OutputDemo(ITestOutputHelper output)
    {
        origConsoleOut = Console.Out;
        outAdapter = new TestOutputHelperTextWriterAdapter(output);
        Console.SetOut(outAdapter);
    }

    public void Dispose()
    {
        Console.SetOut(origConsoleOut);
        outAdapter.Dispose();
    }

    [Fact]
    public void WriteSomeThings()
    {
        Console.WriteLine("printed");
        outAdapter.Enabled = false;
        Console.WriteLine("not printed");
        outAdapter.Enabled = true;
        Console.Write("also printed");
    }
}