public void TestNullTextWriter() { var sw = new NullTextWriter(); Assert.IsNotNull(sw.FormatProvider); Assert.IsNotNull(sw.NewLine); Assert.IsNotNull(sw.Encoding); Assert.IsNull(sw.ToString()); sw.Write("ABC"); Assert.IsNull(sw.ToString()); sw.Write('a'); Assert.IsNull(sw.ToString()); sw.Write(new char[3] { '1', '1', '2' }, 0, 3); Assert.IsNull(sw.ToString()); sw.Write(new char[3] { '1', '1', '2' }); Assert.IsNull(sw.ToString()); }
private NullConsole() { Error = Out = new NullTextWriter(); }
static TextWriter() { Null = new NullTextWriter(); }