Fri, 11 Jul 2008
Randexp - Generating test data with Ruby regexs
While paging through reddit programming recently
(seems only fair since they linked to me ;)) I stumbled on to the very
nifty Randexp gem, a
library that uses regular expression patterns to generate data that would
satisfy the pattern. Or in less tech terms - a really good test data
generator.
# install randexp
$ irb
require "rubygems"
require "randexp"
# simple fake phone number -
/020(7|8) \d{3} \d{4}/.gen
# build a reusable class.
class Randgen
def self.version()
/\d{1,3}\.\d{1,4}/.gen
end
end
# and use it.
/[:version:]/.gen
I especially like the ability to make your own character classes. I'm not a ruby guy but I can see this being very useful in lots of little data generation scripts and test harnesses.
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Posted: 2008/07/11 18:29 | /ruby | Permanent link to this entry | This entry and same date
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