Three Rules of TDD

The Three Laws of TDD.

TDD (Test Driven Development) 's three simple rules:

1. You are not allowed to write any production code unless it is to make a failing unit test pass.
2. You are not allowed to write any more of a unit test than is sufficient to fail; and compilation failures are failures.
3. You are not allowed to write any more production code than is sufficient to pass the one failing unit test.

Its good to follow these 3 rules to write quality, testable, readable, maintainable and production ready code.