Test Driven Development
What is Test-Driven Development (TDD)?
Test-driven development starts with developing test for each one of the features. The test might fail as the tests are developed even before the development. Development team then develops and refactors the code to pass the test.
Test-driven development is related to the test-first programming evolved as part of extreme programming concepts.
Test-Driven Development Process:
Add a Test
Run all tests and see if the new one fails
Write some code
Run tests and Refactor code
Context of Testing:
Errors, exceptions, and events
Everything that might break
Benefits of TDD:
Much less debug time
Code proven to meet requirements
Tests become Safety Net
Near zero defects
Shorter development cycles