// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics;
 
namespace System;
 
public sealed class ThrowingTraceListener : TraceListener
{
    public static ThrowingTraceListener Instance { get; } = new();
 
    public override void Fail(string? message, string? detailMessage)
    {
        throw new InvalidOperationException(
            (string.IsNullOrEmpty(message) ? "Assertion failed" : message) +
            (string.IsNullOrEmpty(detailMessage) ? "" : Environment.NewLine + detailMessage));
    }
 
    public override void Write(object? o)
    {
    }
 
    public override void Write(object? o, string? category)
    {
    }
 
    public override void Write(string? message)
    {
    }
 
    public override void Write(string? message, string? category)
    {
    }
 
    public override void WriteLine(object? o)
    {
    }
 
    public override void WriteLine(object? o, string? category)
    {
    }
 
    public override void WriteLine(string? message)
    {
    }
 
    public override void WriteLine(string? message, string? category)
    {
    }
}