Posted on Sep 18, 2019

have_selector is good for waiting test in Capybara

#capybara #rspec #rails

🔗 Parent Note

My Capybara note

n350071🇯🇵 ・ Sep 11 '19 ・ 2 min read

#rails

🤔 Situation

Let's suppose that you have a panel and test it's changed from open to closed.

😅 Bad code

expect(find('div.target > div.message', visible: false).visible?).to eq true find('div.target').click # the panel will be closed. expect(find('div.target > div.message', visible: false).visible?).to eq false # Error because Capybara is too fast 😭 # --- # Failure/Error # expected: false # got: true

👍Good code

Let's use Capybara::RSpecMatchers#have_selector.

Then, Capybara waits the animation until the test is green.

expect(find('div.target').to have_selector('div.message') find('div.target').click expect(find('div.target').not_to have_selector('div.message')

DEV Community