Did that many times without problems.
But, I mostly code C++ and C#, both are strongly typed, so the compiler helps a lot with refactors.
But, I mostly code C++ and C#, both are strongly typed, so the compiler helps a lot with refactors.
Most proponents of unit tests use horrible programming languages; they are afraid to change code because anything could break at any time. Stop using those languages and most of the problems 'fixed' by unit testing just disappear.