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 );
        }
        public void matching_FileNameUniqueTimeUtcFormat()
        {
            DateTime t = DateTime.UtcNow;
            string s = t.ToString( FileUtil.FileNameUniqueTimeUtcFormat );
            var m = new StringMatcher( "X" + s + "Y" );
            Assert.That( m.MatchChar( 'X' ) );
            DateTime parsed;
            Assert.That( m.MatchFileNameUniqueTimeUtcFormat( out parsed ) && parsed == t );
            Assert.That( m.MatchChar( 'Y' ) );

            m = new StringMatcher( s.Insert( 2, "X" ) );
            Assert.That( m.MatchFileNameUniqueTimeUtcFormat( out parsed ), Is.False );
            int i;
            Assert.That( m.MatchInt32( out i ) && i == 20 );
        }