Computer Programming
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 traits and dependency injection techniques for testability.
Mockito
Scala
ScalaTest
4 lessons
20 practices
3 hours
Computer Systems and Architecture
Lessons and practices
Order Processing System in Action
Class Level Fields for Better Performance
Traits for Better Code Design
Adding a Constructor to the Order Processor
Mocking Dependencies for Order Tests
Testing Failed Payments with Mocks
Handling Missing Products in Order Processing
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 Trait
Configuration Injection for Order Processing
Testing for Maximum Item Limit
Testing Bulk Discount Order Processing
Testing Orders Without Bulk Discounts
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