intermediate

Test Driven Development in Ruby & RSpec

Software Engineering

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Become proficient in TDD with Ruby and RSpec by crafting elegant, testable code. Explore techniques for mocking, stubbing, and utilizing test doubles. Engage in refactoring strategies to create sustainable codebases. Enhance productivity, minimize errors, and develop scalable software solutions.

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This course introduces you to Test-Driven Development (TDD) in Ruby, focusing on the Red-Green-Refactor cycle, embracing the TDD mindset, and setting up a productive environment with RSpec. You'll learn best practices like adhering to SOLID principles and utilizing dependency injection, while understanding TDD's influence on code quality and development speed compared to traditional methods.

Course 2

Red-Green-Refactor: Mastering TDD with Ruby & RSpec

5 lessons

27 practices

Focus on the core TDD workflow: "Red-Green-Refactor." Develop skills by writing failing tests (Red), crafting code to pass them (Green), and refactoring while keeping tests passing (Refactor). This course emphasizes practice over new theory, allowing you to hone your TDD abilities with various coding challenges.

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Course 3

Isolating Dependencies with Test Doubles in Ruby & RSpec

5 lessons

25 practices

Explore the critical role of test doubles in modern software testing. This session introduces you to dummies, stubs, spies, mocks, and fakes. Gain expertise in isolating units under test, managing behavior, and constructing fast, reliable, maintainable tests. Step into using test doubles to enhance your development practices.

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Course 4

Refactoring with Confidence Using Tests in Ruby & RSpec

5 lessons

22 practices

This course hones in on the Refactor stage of TDD, equipping developers to recognize code smells and resolve them with refactoring techniques. Through practical examples, learn to detect common inefficiencies, implement refactoring strategies, and ensure functionality with existing tests.

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I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

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Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

Test Driven Development in Ruby & RSpec

Trusted by learners working at top companies

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

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