Computer Programming
16 learners
Breaking Dependencies to Improve Code
Breaking dependencies is crucial in existing systems to make them more testable, maintainable, and extensible. By reducing coupling and isolating functionality, developers can introduce changes incrementally while minimizing risks. In this course we focus on removing coupling with interfaces and dependency injection techniques for testability.
C#
Moq
.NET Core
xUnit
4 lessons
22 practices
3 hours
Computer Systems and Architecture
Lessons and practices
Order Processing System in Action
Class Level Fields for Better Performance
Adding New Interfaces and Applying Them
Using New Interfaces in OrderProcessor Fields
Adding a Constructor to the Order Processor
Mocking Dependencies for Order Tests
Testing Failed Payments with Mocks
Testing Order Processing with Missing Products
Testing Exception Handling in Order Processing
Testing Order Totals with Different Prices
Optional Parameters for Dependency Injection
Mocking Dependencies for Order Processing
Testing Order Processing with Missing Customer
Testing Missing Products in Order Processing
Testing Failed Payments in Order Processing
Testing Error Handling in Order Processing
Create Order Configuration Interface
Configuration Injection for Order Processing
Add Constructor for Custom Configuration
Mock Testing Order Processing Logic
Testing Bulk Discount Order Processing
Testing Orders Without Bulk Discounts
Meet Cosmo:
The smartest AI guide in the universe
Our built-in AI guide and tutor, Cosmo, prompts you with challenges that are built just for you and unblocks you when you get stuck.
Join the 1M+ learners on CodeSignal
Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal
