Actually it doesn't matter which extension a file has. The content matters.

Usually perl modules only contain some functions, classes, methods, whatever, that can be used from a script afterwards. Evaluating such a module doesn't execute code normally.

That's different from common perl scripts, which actually do real work when being evaluated. You can include a script in another script as well (using require or do or whatever), but all the code inside the script will be executed as soon as it's being evaluated. Therefor it's not quite possible to include such a script somewhere else (in a test script, for example) just to be able to use functions that are defined by it.

How to fix that?

• Put the code that does the actuall work and needs to be tested in a module
• Introduce some bad hacks in your script that make it possible to be included somewhere without being executed
  • For example make it only execute its stuff when it's called with a special parameter or whatever. This parameter will not be given when you only include the file somewhere
• Make other cruel hacks that let you get the actual definition of the sub that needs to be tested to eval it in the test script and test if afterwards

Of course there may be more possibilities, but I can't think of a clean solution that does not seperate the code that should be tested from the actual script.

Cheers, Flo

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