We are now in the Testing and Debugging section of the course. This lesson introduces you to Apex testing.
Resource:
Understanding Testing in Apex - https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_intro.htm
In this lesson, we create a basic test class.
The TestDataFactory class is a special type of class—it is a public class that is annotated with isTest and can be accessed only from a running test. Test utility classes contain methods that can be called by test methods to perform useful tasks, such as setting up test data. Test utility classes...
In this lesson, we test asynchronous Apex.
Resource:
Testing Queuable Apex - https://trailhead.salesforce.com/en/content/learn/modules/asynchronous_apex/async_apex_queueable#testing-queueable-apex