如何在Cucumber步骤定义中使单词可选？

Question

I have a step definition, below, that does what I want it to do ie it checks the url of the page against the 'page' element of 'PAGES' hash.

Then(/^I should( still)? be at the "(.*)" page$/) do |still, page|
  BROWSER.url.should == PAGES[page]
end

The step definition is used for both

• I should be at the ... page
• I should still be at the ... page

However, I don't need "still" to be passed into the block. I just need it to be optional for matching to the step but not passed into the block. How can I do that?

Thanks.

Answer 1

You want to mark the "still" group as non-capturing. This is done by starting the group with ?: .

Then(/^I should(?: still)? be at the "(.*)" page$/) do |page|
  BROWSER.url.should == PAGES[page]
end