Developers have different opinions when it comes to TDD. Most developers do complain about the time and resources required to practice TDD fully and how practicing TDD might not be feasible, based on tight deadlines and schedules. This perception is common among developers just adopting the technique, on the premise that TDD requires writing double code and that time spent doing this could have been used to work on developing other features, and that TDD is best suited for projects with small features or tasks and will be time-wasting with little return on investment for large projects.
Also, some developers complain that mocking can make TDD very difficult and frustrating, as the required dependencies are not to be implemented ...
