public void ReplacementExpressions_Work( string Content, string Expected )
        {
            // Arrange
            MockDateTimeNowFactory mock = new MockDateTimeNowFactory( testDate );
            DateFunctionTokenizer d = new DateFunctionTokenizer( mock );

            // Act
            string actual = d.TokenizeContent( Content );

            // Assert
            Assert.That( actual, Is.EqualTo( Expected ) );
        }
        public void Format_Works( string Format )
        {
            // Arrange
            string content = "__DATE(" + Format + ")__";
            if ( string.IsNullOrEmpty( Format ) ) {
                Format = "d"; // FRAGILE: Duplicates business logic in class under test
            }
            MockDateTimeNowFactory mock = new MockDateTimeNowFactory( testDate );
            DateFunctionTokenizer d = new DateFunctionTokenizer( mock );

            // Act
            string actual = d.TokenizeContent( content );

            // Assert
            string expected = mock.Now().ToString( Format );
            Assert.That( actual, Is.EqualTo( expected ) );
        }