public void ToString_BlockIsVisible_ReturnEmptyString()
        {
            // Arrange
            var transTimeHtml = new StringBuilder();
            var block = new Trans_TransTime_Block();
            block.Visible = false;

            // Act
            block.ToString(ref transTimeHtml);

            // Assert
            Assert.IsNullOrEmpty(transTimeHtml.ToString());
        }
        public void ToString_WhenCalled_ReturnHtmlString()
        {
            // Arrange
            var refNo = "1000000";
            var transTimeHtml = new StringBuilder();
            var block = new Trans_TransTime_Block();
            block.refNo = refNo;

            // Act
            block.ToString(ref transTimeHtml);

            // Assert
            var expectedHtml = string.Format(TransTimeTemplate, refNo);
            Assert.AreEqual(expectedHtml, transTimeHtml.ToString());
        }