Software Engineering

Using Seams to Enable Testability and Expand Capabilities

Seams are strategic points in code where behavior can be modified without altering the existing implementation. They are crucial for introducing changes safely, enabling testing, and refactoring legacy systems incrementally. This course explores functional, object, and preprocessor seams, and their role in improving code maintainability.

C++

GoogleTest

See path

4 lessons

18 practices

2 hours

Course details

Using Seams to Enable Testability and Expand Capabilities in C++

Preview

Refactoring OrderProcessor with Method Extraction

Add Customizable Order Total Calculation

Add Custom Discount Calculation Test

Testing Surcharge Calculation Scenario

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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

Using Seams to Enable Testability and Expand Capabilities

Course details

Unit 14 practices32 min

Unit 26 practices44 min

Unit 34 practices32 min

Unit 44 practices32 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community