In this chapter, you will learn how to write automated tests for existing stored procedures or develop procedures using the concepts of unit tests and Test-Driven Development (TDD). All test cases are stored in the database, so we do not need any external resources (such as files, version control, and command-line utilities) to save tests. Database tests may be grouped into test cases; each test case may have its own environment initialization code. All tests are still executed independently because their effects are automatically rolled back after the execution.
With the help of the project in this chapter, we will set up and run automated unit tests to test whether possible mistakes exist in our PostgreSQL 12 ...
