// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
 
namespace Microsoft.AspNetCore.InternalTesting;
 
public static class StringExtensions
{
    public static string EscapeNonPrintable(this string s)
    {
        var ellipsis = s.Length > 128
            ? "..."
            : string.Empty;
        return s.Substring(0, Math.Min(128, s.Length))
            .Replace("\r", @"\x0D")
            .Replace("\n", @"\x0A")
            .Replace("\0", @"\x00")
            .Replace("\x80", @"\x80")
            + ellipsis;
    }
}