Unit tests are well-known and are already normative in the software development industry. There are a number of standards and practices for unit tests. However, the best practice for unit tests is to make sure that they are running every software built.
The unit tests are used to prove the smallest testable part of a computer program. In this sense, the great challenge is to write code that is testable; otherwise, it will be impossible to apply the unit tests.
An important feature is that unit tests only prove the code unit segment. Imagine that we are going to test a function that communicates with the database. When we create the unit test, we have to use a mechanism so that the function test does not touch the database. The mechanism is commonly known as a mock. When applying a mock to the unit test, we isolate the function we want to test, then any possible changes in the database will not create conflict in the unit test scenarios.
Unit tests that have factors that can change...