C# ApprovalTests - Custom reporter that outputs to command line and copies `cp` command to clipboard

CLIReporter.cs

using System.IO;
using ApprovalTests.Core;
using System;
using TextCopy;

namespace ApprovalTests.Reporters
{
    /// Reporter class to work in `dotnet watch test` in VSCode
    /// terminal window on Mac.
    public class CLIReporter : IApprovalFailureReporter
    {
        public static readonly CLIReporter INSTANCE = new CLIReporter();

        public void Report(string approved, string received)
        {
            if (File.Exists(approved))
            {
                var expected = File.ReadAllText(approved);
                Console.WriteLine("Expected:");
                Console.WriteLine("----");
                Console.WriteLine(expected);
            }
            else
            {
                Console.WriteLine("No approved input.");
            }

            var got = File.ReadAllText(received);
            Console.WriteLine("\nGot:");
            Console.WriteLine("----");
            Console.WriteLine(got);

            var command = $"cp '{received}' '{approved}'";
            Console.WriteLine("\n\n[Approval command on clipboard]");
            ClipboardService.SetText(command);
        }
    }
}