Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Once you do that, focus on one grouping at a time, writing lots and lots and LOTS of tests. Test everything, anything ... if it moves, test it. Heck, test it even if it doesn't move. (You want to make sure it doesn't start moving!)

While I don't think this is what you're proposing - I think this could be read as "write tests for everything in the legacy code before you change anything" which, IMHO, is a bad practice. As I said here

A counter productive practice that I've seen is to go through a large piece of legacy code and add developer tests for everything. Doing this with legacy code not driven by tests will produce a test suite that is brittle in the face of change. When you get to the refactoring you're going to find that you're going to be continually throwing away a lot of the new tests so you don't get any benefit from them.

In my experience it's much more effective to build the test suite around the changes you make to the code. Add tests when you add new features. Add tests around code that you're refactoring. Add tests to demonstrate bugs. In my experience just following those three rules naturallys build a test suite around the most important code.


In reply to Re^4: Analyzing large Perl code base. by adrianh
in thread Analyzing large Perl code base. by dmitri

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



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

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

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (2)
As of 2021-08-01 04:56 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?