Salesforce Apex delivers a testing framework that allows you to write and run tests, check the test results, and determine your test coverage. Before you can deploy your code to a production environment, you need to cover at least 75% of your code, and all the written tests need to pass. I recommend that you use test-driven development, which means that you do your test development at the same time as your code development. Let's see why testing is so important during development.
Testing deployment requirements and the testing framework
The importance of testing
Why should you write extra code to test whether everything works like a charm? Well, testing is crucial in your development process and is the key to successful...