Test driven refactoring vs composite refactoring

[Pradeep bhatt]

What is the difference between the two? Does test-driven refactoring involve replacing the code and conmposite approach is just rearranging the code.

Thanks

[Edwin Keeton]

Quoting from Chapter 2 Kerievsky's book, Refactoring to Patterns:

A test-driven refactoring involves applying testdriven
development to produce replacement code and then swap out old code
for new code (while retaining and rerunning the old code�s tests).

Composite refactorings are high-level refactorings composed of low-level refactorings.

Read it here