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

A story describes a user’s journey through an application to reach their goal. Everything happens because of it. Without a story, we wouldn’t be building the application. It’s central to the development job.

The story lists the steps the user needs to take to get to where they want to go.


# An example story

Let’s assume for a moment that we’re building an application that sells tickets online. Our users want to purchase one or more tickets using our application. That’s their goal.

We can make that even more specific. Let’s assume the user wants to buy two tickets for Metallica’s concert in Timisoara, a small city in Romania. That’s pretty specific.

Now, let’s go through the thinking process of building an application that can help the user accomplish this goal.

Here’s one way to do it. Let’s put ourselves in the user’s shoes by imagining how we’d navigate the site in a browser.

1. We visit the website.
2. If we can see Metallica listed on the homepage, we click on it.
3. If not, we look for a search box to type the band's name in.
4. Assuming we’ve found the band and are on their page, we look for the specific concert we’re interested in—the one in Timisoara.
5. Once we find it found, we select that event.

6. We then choose our seats.
7. We then complete the purchase.
8. Once done, we expect to receive a confirmation email with our tickets attached.



Let’s learn about stories and their importance in building applications.


What's a Story?

Let’s learn about stories and their importance in building applications.

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

What's a Story?

An example story