I have decided that it is time for me to learn test driven development with the aid of Perl modules such as test::more. All the examples I can find involve the testing of complete Perl modules. Accordingly, the test script references the tested code with a use or require statement. My code isn't a module yet; I'm just writing the first subroutines. How do I allow my test script to access the code I am testing? As far as I can tell, Perl doesn't have an include statement like C or PHP, and strongly discourages substitutes. So, what is the preferred method here?