Gain insights into good testing practices in Ruby on Rails. Learn the testing mindset, convert requirements into user stories, and master feature, request, and unit tests for comprehensive coverage.

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This course aims to teach you how to write better Rails applications by applying good testing practices. You’ll learn about the reasoning behind testing and the process of applying good testing practices. 

In the first half of the course, you’ll learn about the testing mindset and understand its importance. Next, you’ll learn to turn business requirements into user stories. These user stories will become the basis of the code and tests you’ll write.

Once you understand the reasoning and process, you’ll proceed to write the actual tests. You’ll test what is most important to the end user first. So, the first set of tests you’ll learn to write will be feature tests. Finally, you’ll learn to write request tests and unit tests ensuring end-to-end coverage of our application.

Bulletproof Ruby on Rails Applications

# Setting up the test
Our third step is `"I fill in and submit the registration form"`.

Considering what the step needs to accomplish, the code below illustrates how a user might complete that step:


When("I fill in and submit the registration form") do
  fill_in "user-name", with: "jdoe"
  fill_in "user-email", with: "jdoe@example.com"
  fill_in "user-password", with: "secret1234"
  fill_in "user-password-confirmation", with: "secret1234"
  click_on "user-registration-submit"
end

Looking good. That's what we imagine the user doing when they fill in the registration form.

Add the step to the `user_registration_steps.rb` file and run the test using the "Run" button.

Let’s implement the third feature test.


The Third Test: Fill and Submit Form

Let’s implement the third feature test.

Before We Start

The Why Behind Testing

The How Behind Testing

Planning

The Feature Layer

The Request Layer

The Unit Layer

Create a Bill Split Application Using Ruby on Rails

Conclusion

The Third Test: Fill and Submit Form

Setting up the test