Rspec + Capybara : How to click on alert box

Question

I have gone through the post of capybara + click on alert box but nothing seems to be work. Following is my scenario:

Scenario: When I click update

Answer 1

Try this line if you want to click on the ok button of the alert box:

page.evaluate_script('window.confirm = function() { return true; }')

Don't forget to mark your test with the javascript flag

it "update user to trainer", js: true do
    ...
end

and enable Capybara.javascript_driver with :webkit or :selenium in your spec_helper file