Unit tests are those that allow us to verify that a piece of code is working correctly, and it is a procedure that is carried out in the same way within the agile work methodology. In conclusion, I personally use unit tests to validate the behavior of an object and its proper logic.
I have worked with agile methodologies. What are agile methodologies? As my own concept I am aware that agile methodologies are those that allow us to adapt the way in which we work to the conditions of the project, I consider that in a project it is important to have an agile project management since this person will help us improve the quality of the project. product, having the customer 100% satisfied, motivates workers, etc.