public void TestStream()
{
var input = new StringReader("abc\n def ");
var output = new StringWriter();
var inputStream = input.AsPipedStream();
var outputStream = output.AsPipedStream();
outputStream |= inputStream;
Assert.AreEqual("abc\r\n", output.GetStringBuilder().ToString());
outputStream |= "ho ho ho";
Assert.AreEqual("abc\r\nho ho ho\r\n", output.GetStringBuilder().ToString());
outputStream |= ((s) => s.Trim()) | inputStream;
Assert.AreEqual("abc\r\nho ho ho\r\ndef\r\n", output.GetStringBuilder().ToString());
}
