public void WriteLine_WritesToScrawler()
{
var scrawlerMock = new Mock <Scrawler>();
var context = new WriteContext(scrawlerMock.Object);
var result = string.Empty;
scrawlerMock.Setup(s => s.Write(It.IsAny <string>()))
.Callback <string>(s => result += s)
.Verifiable();
context.WriteLine(TestWord);
scrawlerMock.Verify();
Equal($"{TestWord}{context.LineTerminator}", result);
}