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));
        }