Learning Objectives After completing this unit, you’ll be able to: Write clear and intentional Apex Assertions. Write Clear and Intentional Apex Assertions Improve the readability of your Apex code by using the assert methods in the new System.Assert class that fit the exact conditions that you’re checking for. We still support the existing System class assert methods. But we also recommend that you start using the new ones soon and that you update your existing code to use them.