Class Central is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

Using Seams to Enable Testability and Expand Capabilities

Go to class Write review

Details

Provider

CodeSignal
Pricing

Free Certificate
Languages

English
Certificate

Certificate Available
Duration & workload

2 hours
Sessions

On-Demand
Level

Intermediate

Found in

Part of

Refactoring Techniques in C++

Overview

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.

Syllabus

Unit 1: Using Seams to Enable Testability and Expand Capabilities in C++

Refactoring OrderProcessor with Method Extraction
Add Customizable Order Total Calculation
Add Custom Discount Calculation Test
Testing Surcharge Calculation Scenario

Unit 2: Feature Flags in C++: Enhancing Flexibility and Testability

Implementing Order Calculation Mode Enum
Implement Order Calculation Modes
Add Optional Calculation Mode Parameter
Testing Normal Calculation Mode Behavior
Testing Order Processor Discount Mode
Testing Surcharge Calculation in Order Processing

Unit 3: Leveraging Inheritance for Object Seams in C++

Preparing for Inheritance with Protected and Virtual Methods
Implementing Inheritance with the DiscountOrderProcessor Class
Implement Tests for Discount Order Processing
Testing the DiscountOrderProcessor

Unit 4: Interface Breakdown in C++: Enhancing Maintainability and Testability with Abstract Classes

Interface Segregation Principle for Notification Services
Refactoring AuditService with Interface Segregation
Interface Segregation for Notification Services
Interface Segregation for SMS Service

Reviews

Start your review of Using Seams to Enable Testability and Expand Capabilities