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module RuboCop
module Cop
module RSpec
module Capybara
# Checks that no expectations are set on Capybara's `current_path`.
#
# The `have_current_path` matcher (http://www.rubydoc.info/github/
# teamcapybara/capybara/master/Capybara/RSpecMatchers#have_current_path-
# instance_method) should be used on `page` to set expectations on
# Capybara's current path, since it uses Capybara's waiting
# functionality (https://github.com/teamcapybara/capybara/blob/master/
# README.md#asynchronous-javascript-ajax-and-friends) which ensures that
# preceding actions (like `click_link`) have completed.
#
# @example
# # bad
# expect(current_path).to eq('/callback')
# expect(page.current_path).to match(/widgets/)
#
# # good
# expect(page).to have_current_path("/callback")
# expect(page).to have_current_path(/widgets/)
#
class CurrentPathExpectation < Cop
MSG = 'Do not set an RSpec expectation on `current_path` in ' \
'Capybara feature specs - instead, use the ' \
'`have_current_path` matcher on `page`'.freeze
def_node_matcher :expectation_set_on_current_path, <<-PATTERN
(send nil? :expect (send {(send nil? :page) nil?} :current_path))
PATTERN
def on_send(node)
expectation_set_on_current_path(node) do
add_offense(node, location: :selector)
end
end
end
end
end
end
end
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18 entries across 18 versions & 1 rubygems