elsa-core/test/Elsa.Testing.Shared/CapturingTextWriter.cs
2022-04-20 21:06:39 +02:00

46 lines
1 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace Elsa.Testing.Shared;
/// <summary>
/// Captures lines of text.
/// </summary>
public class CapturingTextWriter : TextWriter
{
private readonly ICollection<string> _lines = new List<string>();
private IList<char> _line = new List<char>();
public IReadOnlyCollection<string> Lines => _lines.ToList();
public override Encoding Encoding => Console.Out.Encoding;
public override void Write(char value)
{
if (value == '\n')
{
FlushLine();
_line = new List<char>();
return;
}
_line.Add(value);
}
protected override void Dispose(bool disposing)
{
if (_line.Count > 0)
FlushLine();
base.Dispose(disposing);
}
private void FlushLine()
{
if (_line.Count > 0 && _line.Last() == '\r')
_line.RemoveAt(_line.Count - 1);
_lines.Add(new string(_line.ToArray()));
}
}