Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re: When Test Suites Attack

by BrowserUk (Pope)
on Oct 28, 2005 at 23:39 UTC ( #503807=note: print w/replies, xml ) Need Help??


in reply to When Test Suites Attack

I would start with a well-formed document of the same type from another source that contains one or two elements of each type that my api can produce. Trim this document manually to remove excessive duplication--and check it is still well-formed. My test application would be to reproduce this document.

My test would not be a simple textual compare, as the layout of two functionally identical XML docs can vary enormously without there being an error. So, I would use one of the XML parsing modules that produces a dumpable hierarchal object and the test would be comparing the dumped (with sorting where applicable) parse-trees.

I'd use diff (the program rather than module) to compare the dumped trees. I'd combine two passes with a shell script &&. The first would use the -q switch to just test same/different. And if it fails, it would invoke the second pass that would use the -y switch piped to more* to present the differences on screen, so that I could inspect them and decide what corrections or addition I would make next.

*I'd probably use windiff for the second pass, its visualisation is easier to digest.

You can set the test up before you start developing the API and get direct feedback as you go along as to what you have done so far, what corrections you need to make, and what needs to be done next.


Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://503807]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (4)
As of 2021-02-28 01:41 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?