private static void CheckDateTimeStamp( DateTimeStamp t )
{
string s = t.ToString();
var m = new StringMatcher( "X" + s + "Y" );
Assert.That( m.MatchChar( 'X' ) );
DateTimeStamp parsed;
Assert.That( m.MatchDateTimeStamp( out parsed ) && parsed == t );
Assert.That( m.MatchChar( 'Y' ) );
m = new StringMatcher( s.Insert( 2, "X" ) );
Assert.That( m.MatchDateTimeStamp( out parsed ), Is.False );
Assert.That( m.ErrorMessage, Is.Not.Null );
int i;
Assert.That( m.MatchInt32( out i ) && i == 20 );
}