public static void Ctor_ExpectedDefaults()
{
var sb = new StringBuilder();
var sw = new StringWriter(sb);
var itw = new IndentedTextWriter(sw);
Assert.IsType<UnicodeEncoding>(itw.Encoding);
Assert.Equal(0, itw.Indent);
Assert.Same(sw, itw.InnerWriter);
Assert.Equal(sw.NewLine, itw.NewLine);
Assert.Equal(new string(' ', 4), IndentedTextWriter.DefaultTabString);
}