Apex testing

Writing Apex code without proper testing can lead to issues, such as bugs and errors, which can negatively impact the user experience and ultimately harm the overall success of the project. This is where Apex unit testing comes in as a critical part of the development process that helps ensure that the code is functioning as intended, meets requirements, and can handle different scenarios. In this regard, Apex unit testing is essential for creating high-quality, robust, and maintainable code in Salesforce.

These tests should be designed to simulate both positive and negative scenarios. This means the code should not only be tested to ensure that it does what it is supposed to, but also tested to check that it doesn’t do things it’s not supposed to. Additionally, Apex unit tests should be written to test operations in a single context or a bulkified context, meaning they can test either a single record or multiple records at once. To improve test efficiency...