Testing Interface Contract in Java

Date: 2024-03-21

Java interfaces define contracts that implementing classes must follow, ensuring consistency. This article uses the example of a Calculator interface with add and subtract methods, implemented by a BasicCalculator class. JUnit tests verify that BasicCalculator correctly implements the interface's contract. Passing tests confirm adherence to the interface's defined methods; failing tests indicate contract violations. This process ensures robust and maintainable code.

Read more: https://examples.javacodegeeks.com/verify-java-interface-contract-using-junit/