Software Engineering

Isolating Dependencies with Test Doubles with Rust & mockall

Master test doubles in Rust to isolate units and control behavior. This course covers the essentials of dummies, stubs, spies, mocks, and fakes using the mockall crate. Learn to verify interactions and build reliable, fast, and maintainable tests. Elevate your TDD practice by effectively decoupling your code from external dependencies.

Rust

See path

4 lessons

21 practices

3 hours

Course details

Isolating Dependencies with Test Doubles: Dummies

Preview

Understanding TDD Dummy Implementations

Enhancing Logger Interface with Severity Parameter

Implementing Dummy Dependencies in EmailService Tests

Implementing a Dummy-Based Test Suite

Previous Course Next Course: Refactoring by Leveraging Your Tests with Rust

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Senior Machine Learning Engineer

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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

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

Isolating Dependencies with Test Doubles with Rust & mockall

Course details

Unit 14 practices32 min

Unit 26 practices44 min

Unit 35 practices38 min

Unit 46 practices44 min

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Join the 1M+ learners on CodeSignal

From our community

From our community