(Test) on the need to build a development environment:

On the need for (test) setup the development environment:
If you use a local test, then the local to switch back and forth (may cause some doubt, increased interference troubleshooting problems), and the use fixed machine deployed to a test environment, then you can not switch back and forth, testing the FBI to enhance efficiency;
of course, if the self-test, the relatively good start in the machine, but after the completion of self-test, or have to go test development environment for testing, this is indispensable, because
iteration an environment, can expose problems in advance of the program, in particular the issue of (running) environment;