Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

The first case is when I've got a neat idea but I don't know how to implement it.

Assuming the neat idea is one that produces tangible results, write a functional test that invokes the "neat idea" code and makes some assertions about the results. Functional tests are good when you're making a cold start on an idea. They help you get started working from the outside in.

I sometimes start with a (functional) WWW::Mechanize test that invokes a CGI that doesn't exist yet, and makes some assertions about what the result looks like. Then I work inwards towards things that I can unit test. Often though, having a set of functional tests is sufficient.

Sometime if I find myself coding too far ahead, I'll stop and comment out the code I've just written. Then I'll write tests that give me a legitimate excuse to uncomment it bit by bit. It's not rare to discover that I've written stuff I don't really need. And occasionly, as you mention, a test will pass when it isn't expected to. Those end up being great opportunities for learning.


In reply to Re: When test-driven development just won't do by dws
in thread When test-driven development just won't do by Ovid

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others romping around the Monastery: (5)
    As of 2015-07-06 04:17 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (70 votes), past polls