Software Engineering

242 learners

Refactoring by Leveraging Your Tests with C# & xUnit

Deep dive into the Refactor phase of TDD. Learn to spot code smells and apply refactoring techniques using real examples, while keeping tests passing to preserve functionality.

.NET Core

xUnit

See path

5 lessons

21 practices

3 hours

Course details

Eliminating Duplicated Code: Extract Functions and Refactor Magic Numbers

Preview

Refactor Duplicated Code in the Tests

Refactor Tests using Parameterization

Extract Function: calculateItemCost

Refactor duplication between calculate functions

Refactor Magic Numbers to Constants

Previous Course

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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

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

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

Refactoring by Leveraging Your Tests with C# & xUnit

Course details

Unit 15 practices38 min

Unit 24 practices32 min

Unit 34 practices32 min

Unit 44 practices32 min

Unit 54 practices32 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community