Using Capybara, Cucumber, and Selenium WebDriver in Ruby

Capybara is an acceptance test framework for web applications in Ruby. It integrates with Ruby-based BDD frameworks such as Cucumber and RSpec, along with Selenium WebDriver, for web testing capabilities. Capybara is widely used in testing Rails applications.

In this recipe, we will see how to use Capybara, Cucumber, and Selenium to test the BMI Calculator application.

Getting ready

1. You need to install Capybara Gem by using the following command:

   gem install capybara
   

2. Additionally, you also need to install Cucumber and RSpec Gem on a fresh Ruby installation, as follows:

   gem install cucumber
   gem install rspec
   

How to do it...

In Capybara, we need to create a features file for the stories under test. These stories are written in the Gherkin language with the Given, When, and Then structures in the Cucumber format. Perform the following steps to create a feature and step definition file with Capybara:

1. Create a plain text file named BmiCalculate...