You can get a very similar experience with hot-reloading. In C# my current test-writing workflow is:

1. write the basic test scaffolding

2. debug, stepping until I get to a point in the test that needs to change

3. modify the test code (and save, which hot-reloads)

4. move the execution point to before my change

5. GOTO 2.

There are some changes that can't be hot-reloaded, but I've been surprised and how flexible it is.