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Intermediate

16h

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Bulletproof Ruby on Rails Applications
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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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Overview

Content

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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.

This course aims to teach you how to write better Rails applications by applying good testing practices. You’ll learn about the ...Show More

WHAT YOU'LL LEARN

An understanding of feature testing

An understanding of testing and its importance in building robust applications

An understanding of the importance of request tests and how to write them

The ability to write unit tests to cover edge cases

An understanding of feature testing

Content

48 Lessons4 Quizzes

Before We Start

2 Lessons

Get familiar with enhancing coding practices through effective testing and problem-solving in Rails applications.

About This Course

Motivation

The Why Behind Testing

3 Lessons

Unpack the core of testing in Ruby, focusing on mindset, organizational support, and aligning with business goals.

Author’s Introduction

Testing

Business Goals

The How Behind Testing

8 Lessons

Master the steps to effective user story creation and collaborative communication in testing.

Communicating Behavior

The Best Language We Have

How to Write User Stories

Quiz: The How Behind Testing

Planning

4 Lessons

Break down complex ideas on planning effective tests for Ruby on Rails applications.

The Feature Layer

14 Lessons

Take a closer look at Ruby on Rails feature testing, from homepage to user actions.

The Feature Test

Our First Test: Get Homepage

Passing the First Test

The Second Test: Click Registration Link

Passing the Second Test

The Third Test: Fill and Submit Form

Passing the Third Test

The Fourth and Fifth Tests: Confirmation Message and Email

When Things Go Wrong

Challenge: Log In

Challenge Solution: Log In

Challenge: Reset Password

Challenge Solution: Reset Password

Quiz: Feature Layer

The Request Layer

8 Lessons

Focus on request testing, debugging, and challenges for creating and listing blog posts.

Testing What Users Can’t See

Passing the Request Test

There's a Bug

Challenge: Create a New Blog Post

Challenge Solution: Create a New Blog Post

Challenge: Return List of Blog Posts

Challenge Solution: Return List of Blog Posts

Quiz: Request Layer

The Unit Layer

8 Lessons

Master unit testing for better code isolation, debugging, and validation in Rails applications.

Testing the Edges

Unit Test: Maximum Length Constraint

Unit Test: Minimum Length Constraint

Unit Test: Format Validation

Challenge: BlogPost Validations

Challenge Solution: BlogPost Validations

Challenge: Unique Title for Blog Posts

Challenge Solution: Unique Title for Blog Posts

Create a Bill Split Application Using Ruby on Rails

Project

Conclusion

1 Lessons

Gain a comprehensive understanding of adopting a test-first approach and its benefits.

Concluding Remarks

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Cezar Halmagean

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Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

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AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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