Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re^4: Modern Perl 4th Edition (Debuggers)

by eyepopslikeamosquito (Chancellor)
on Nov 21, 2017 at 05:42 UTC ( #1203860=note: print w/replies, xml ) Need Help??


in reply to Re^3: Modern Perl 4th Edition (Debuggers)
in thread Modern Perl 4th Edition

Damian Conway gives some excellent Debugging advice in Ten Essential Development Practices namely:

Add New Test Cases Before You Start Debugging

The first step in any debugging process is to isolate the incorrect behaviour of the system, by producing the shortest demonstration of it that you reasonably can. Once you have distilled a short working example of the bug, convert it to a series of tests.

Don't try to fix the problem straight away, though. Instead, immediately add those tests to your test suite. The point is: if the original test suite didn't report this bug, then that test suite was broken. It simply didn't do its job (finding bugs) adequately. Fix the test suite first by adding tests that cause it to fail.

Once the test suite is detecting the problem correctly, then you'll be able to tell when you've correctly fixed the actual bug, because the tests will once again fall silent. The more thoroughly you test the bug, the more completely you will fix it.

External Debugger References

Perl Monks Debugger Nodes

  • Comment on Re^4: Modern Perl 4th Edition (Debuggers)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1203860]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (7)
As of 2019-05-24 18:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you enjoy 3D movies?



    Results (151 votes). Check out past polls.

    Notices?
    • (Sep 10, 2018 at 22:53 UTC) Welcome new users!