gistfile1.txt

From:

Then /^the "([^\"]*)" checkbox should be checked$/ do |label|
  field_labeled(label).should be_checked
end

Then /^the "([^\"]*)" checkbox should not be checked$/ do |label|
  field_labeled(label).should_not be_checked
end

To something like this:

Then /^the "([^\"]*)" checkbox should( not)? be checked$/ do |label, invert|
  field_labeled(label).should_unless(invert).match be_checked
end

Or this:

Then /^the "([^\"]*)" checkbox should( not)? be checked$/ do |label, invert|
  swap_shoulds_and_should_nots if invert
  field_labeled(label).should be_checked
end