Geek Answers Handbook

Resize Chrome window when using Capybara

I use Capybara (with selenium) and Chrome, and RSpec. But I would like to change the width of the browser in some tests. What is the solution in this case?

specifications / spec _helper.rb

ENV["RAILS_ENV"] ||= 'test' require File.expand_path("../../config/environment", __FILE__) require 'rspec/rails' require 'rspec/autorun' require 'capybara/rspec' # Requires supporting ruby files with custom matchers and macros, etc, # in spec/support/ and its subdirectories. Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f} # Using chrome as browser to test in capybara. Capybara.register_driver :selenium do |app| Capybara::Selenium::Driver.new(app, :browser => :chrome) end # RSpec config. RSpec.configure do |config| config.include Devise::TestHelpers, :type => :controller # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures config.fixture_path = "#{::Rails.root}/spec/fixtures" # If you're not using ActiveRecord, or you'd prefer not to run each of your # examples within a transaction, remove the following line or assign false # instead of true. config.use_transactional_fixtures = false # If true, the base class of anonymous controllers will be inferred # automatically. This will be the default behavior in future versions of # rspec-rails. config.infer_base_class_for_anonymous_controllers = false # Clean test database. config.before(:suite) do DatabaseCleaner.strategy = :truncation end config.before(:each) do DatabaseCleaner.start end config.after(:each) do DatabaseCleaner.clean end end
+4
source share
4 answers

Selenium Webdriver has a resize_to function that you can use:

 page.driver.browser.manage.window.resize_to(1024, 768)

Window contains some other methods that may be useful.

+8
source

I found that calling Driver#browser now deprecated (Capybara 2.5.0).

You can use Driver#resize_window_to to resize the window:

page.driver.resize_window_to(page.driver.current_window_handle, 1_200, 800)

You can also use Session#current_window , then Window#resize_to :

page.current_window.resize_to(1_200, 800)

Look at the docs for more information:

http://www.rubydoc.info/github/jnicklas/capybara/Capybara

+2
source

Late answer, but someone may need it. You can initiate a chromedriver by specifying the size of the window so you don't need its size after the page loads:

 Capybara.register_driver :chrome_sizes do |app| profile = Selenium::WebDriver::Chrome::Profile.new Capybara::Selenium::Driver.new(app, :browser => :chrome, :profile => profile, :args => ["--window-size=1240,1400"] ) end
+1
source

Try the following:

 it "testname", :js => true do set_selenium_window_size(1280, 800) if Capybara.current_driver == :selenium # Resize window. NB: cannot be moved to before :all block, because there Capybara.current_driver will be :webkit. It changes to :selenium inside :js => true blocks. # ... the rest of your test ... end def set_selenium_window_size(width, height) window = Capybara.current_session.driver.browser.manage.window window.resize_to(width, height) end

Thanks to Sidan for his https://gist.github.com/Sidane/2204218

0
source

More articles:


All Articles