Test-Driven Development (TDD) is a coding methodology where tests are written before the actual code. This process verify the code reliability, quality, and maintainability through its Red-Green-Refactor cycle.
“Test-driven development” refers to a style of programming in which three activities are tightly interwoven: coding, testing (in the form of writing unit tests), and design (in the form of refactoring). It can be succinctly described by the following set of rules: Typical individual mistakes include: Typical team pitfalls include: