How to Test a Confirm Dialog with Cucumber

How to Test a Confirm Dialog with Cucumber

21 May 2024 Stephan Petzl Leave a comment Tech-Help

When developing applications with Ruby on Rails, using Cucumber and Capybara for testing can be quite effective. One common challenge developers face is testing confirm dialogs, such as “Are you sure?”. This guide will walk you through the steps to effectively test these dialogs in your applications.

Using the Selenium Driver

The Selenium driver supports handling confirm dialogs directly. You can interact with the dialog by using the switch_to.alert method provided by Selenium. Here are the primary actions you can perform:

  • To accept the dialog:
  • To dismiss the dialog:
  • page.driver.browser.switch_to.alert.dismiss
  • To retrieve the text of the dialog:
  • page.driver.browser.switch_to.alert.text

    Implementing Steps in Cucumber

    To integrate these actions into your Cucumber tests, you can define custom step definitions. Below is a simple implementation of step definitions for accepting and dismissing confirm dialogs:

    When /^I confirm popup$/ do
    When /^I dismiss popup$/ do

    Testing Specific Messages

    If you need to test the specific message displayed in the confirm dialog, you can extend the approach to include assertions on the dialog text. Here’s an example step definition that checks the message before accepting the dialog:

    And(/^I confirm the browser dialog with title "([^\"]*)"$/) do |title|
      if page.driver.class == Capybara::Selenium::Driver
        page.driver.browser.switch_to.alert.text.should eq(title)
      elsif page.driver.class == Capybara::Webkit::Driver
        sleep 1 # prevent test from failing by waiting for popup
        page.driver.browser.confirm_messages.should eq(title)
        raise "Unsupported driver"


    Testing confirm dialogs in your Rails applications with Cucumber and Capybara can be straightforward using the Selenium driver. By defining custom step definitions, you can handle these dialogs effectively in your automated tests.

    For further documentation on handling virtual test devices, running test batches, and advanced testing techniques, please visit our documentation page.

    Enhance Your Testing with Repeato

    While Cucumber and Capybara provide robust tools for testing web applications, you might find it beneficial to explore Repeato for your mobile app testing needs. Repeato is a no-code test automation tool for iOS and Android, which allows you to create, run, and maintain automated tests efficiently. With its intuitive test recorder and AI-driven approach, Repeato simplifies the testing process, making it easier to manage complex use cases. Additionally, Repeato supports testing websites inside Android emulators or devices, with explicit web testing support coming soon. Learn more about how Repeato can enhance your testing workflow by visiting our documentation page.

    Like this article? there’s more where that came from!