There are many ways to ensure quality when making operational or development changes.
When combining quality checks and ordering them, they can be used to form a set of quality gates that development, infrastructure, or even network changes should flow through before they reach production. We will briefly touch upon some of the more popular testing strategies that are used to ensure that any changes to a system or application are operating effectively, comprised of the following phases of testing:

One of the most popular types of quality assurance is the unit test. A unit test will test each isolated code operation and make sure that each method or function exhibits the desired behavior with different inputs.
One or more unit tests will be required to make sure that a method or function works as desired. So multiple unit tests may need to be written to test any basic operation asserting either a pass or failure based on one isolated operation.
Unit tests can normally...