Overview
Capybara is good for Rails E2E (Feature) testing. It simulates user actions on a browser, like find a button and click it, wait for the next page. You can choose Selenium Driver or others as web driver.
SetUp
stop/pause headless Selenium testing with Capybara
n350071๐ฏ๐ต ใป Sep 10 '19 ใป 1 min read
#capybara
#rspec
#rails
Usage
๐จ prepare
๐ look around your site
inside of HTML
Narrow down scope with `within` in Capybara Rails testing
n350071๐ฏ๐ต ใป Sep 18 '19 ใป 1 min read
#rails
browser manipulation
โ assert
capybara find.text method ignore newline (convert to a space)
n350071๐ฏ๐ต ใป Sep 10 '19 ใป 1 min read
#capybara
#rspec
#rails
have_selector is good for waiting test in Capybara
n350071๐ฏ๐ต ใป Sep 18 '19 ใป 1 min read
#capybara
#rspec
#rails
# get current path
current_path
# spec/rails_helpers/feature_helper.rb
module FeatureHelpers
def current_path_with_params
uri = URI.parse(current_url)
"#{uri.path}?#{uri.query}"
end
end
๐ form
[Capybara] find('input').set will have not done!
n350071๐ฏ๐ต ใป Dec 17 '19 ใป 1 min read
#capybara
#rspec
#rails
# input type=text
fill_in 'nav-search', with: 'n350071 capybara'
# select box
select 'Most Views', from: 'dashhboard_sort'
# submit
page.execute_script("$('form#your-form').submit()")
๐งโโ๏ธ Manipulate
Run Javascript by Capybara feature test
n350071๐ฏ๐ต ใป Sep 10 '19 ใป 1 min read
#capybara
#rspec
#rails
# Change CSS/Style in Capybara
page.execute_script("$('selector').css('display','block')");
๐ Opinion
- We should use what users will see, instead of the source code of HTML.
- The HTML is an essential factor to test.
- We should align the HTML tag, CSS for testing. If it's different from a similar page, the testing is tough.
- We should use the correct name in HTML to support easy testing.
- Using
find('label[for="model_attributes"]'
is better than XPath, because this way is simulate the users way.
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