Cucumber Step Definition Regex Exclude

Question

I need some help with a regular expression in a Cucumber step definition file. Many of my steps are of the type:

Given I am on the search page

I use this general pattern for most of my step definitions, and use the default Webrat regex to pick it up that looks like this:

Given /^(?:|I )am on (.+)$/ do |page_name|
     visit path_to(page_name)
end

The problem is that I need to handle a page titled 'results' differently, and I do not know how to modify the above regex to exclude lines that say 'Given I am on the results page'.

More specific regex (for the result page) should win therefore you don't need to change the generic regex. — jfs
– jfs, Commented Oct 19, 2010 at 19:12
That was actually one of the first things I tried, but I still get an error about both regex's matching. — Swaraj
– Swaraj, Commented Oct 19, 2010 at 22:09

incompetent1 · Accepted Answer · 2010-10-28 22:05:26Z

1

You can use a negative look ahead to resolve this one:

Given /^(?:|I )am on (?!the results)(.+)$/ do |page_name|
    p page_name
end

Given /^I am on the results page$/ do
   p 'We matched the results page'
end

answered Oct 28, 2010 at 22:05

incompetent1

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1 Comment

Swaraj Over a year ago

thanks, I ended up not using the regular expression, and instead writing individual regexes for each case, but I just tried this and it definitely works.

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