This is a comparision of handling JavaScript alert/confirm/prompt notifications with Capybara.

capybara-notification.txt

This is a comparision of handling JavaScript alert/confirm/prompt notifications with Capybara.

Proposed consolidated API in Capybara:

  There are two styles of notification handling: proactive or reactive.
    - Proactive is used in headless environments to queue up responses.
    - Reactive is used in environments with actual notifications that mandate a response (eg selenium).

  alert   - # Reactive
            page.driver.accept_alert

            # Shared
            page.driver.alert_messages

  confirm - # Proactive
            page.driver.confirm_responses(true, false, true)
            page.driver.accept_confirms
            page.driver.reject_confirms

            # Reactive
            page.driver.accept_confirm
            page.driver.reject_confirm

            # Shared
            page.driver.confirm_messages

  prompt  - # Proactive
            page.driver.prompt_responses('One', 'Two')
            page.driver.accept_prompts
            page.driver.reject_prompts

            # Reactive
            page.driver.respond_to_prompt('One')
            page.driver.accept_prompt
            page.driver.reject_prompt

            # Shared
            page.driver.prompt_messages



Rack::Test

  alert   - not supported
  confirm - not supported
  prompt  - not supported


Selenium

  alert   - page.driver.browser.switch_to.alert.accept

  confirm - confirm = page.driver.browser.switch_to.alert
            confirm.accept
            confirm.dismiss

  prompt  - prompt = page.driver.browser.switch_to.alert
            prompt.send_keys('My Response')
            prompt.accept


capybara-webkit

  alert   - page.driver.alert_messages
            page.driver.browser.alert_messages

  confirm - page.driver.confirm_messages
            page.driver.browser.confirm_messages

          * page.driver.accept_js_confirms!
          * page.driver.browser.accept_js_confirms

          * page.driver.dismiss_js_confirms!
          * page.driver.browser.reject_js_confirms

  prompt  - page.driver.prompt_messages
            page.driver.browser.prompt_messages

          Accepting/Dismissing the prompt
          - By the nature of prompts, accepting is the same as clicking
            OK without filling out a response.
          ---------------------------------------------------------
          * page.driver.accept_js_prompts!
          * page.driver.browser.accept_js_prompts

          * page.driver.dismiss_js_prompts!
          * page.driver.browser.reject_js_prompts

          Setting the prompt
          ---------------------------------------------------------            
          * page.driver.js_prompt_input = 'My Response'
          * page.driver.accept_js_prompts!

          * page.driver.browser.set_prompt_text_to('My Response')
          * page.driver.browser.accept_js_prompts

          Clearing the prompt
          - Unnecessary, can be accomplished with:
              page.driver.js_prompt_input = ''
          ---------------------------------------------------------
          * page.driver.js_prompt_input = nil
          * page.driver.accept_js_prompts!

          * page.driver.browser.clear_prompt_text
          * page.driver.browser.accept_js_prompts


potergeist

  This API is in proposition.

  alert   - page.driver.js_alert_messages
            page.driver.browser.js_alert_messages

  confirm - page.driver.js_confirm_messages
            page.driver.browser.js_confirm_messages

            page.driver.js_confirm_set_responses(true, false, true)
            page.driver.browser.js_confirm_responses([true, false, true])

  prompt  - page.driver.js_prompt_messages
            page.driver.browser.js_prompt_messages

            page.driver.js_prompt_set_responses('My Response', 'Another Response')
            page.driver.browser.js_prompt_responses(['My Response', 'Another Response'])