How do you test code that uses interfaces?

This article discusses how to effectively test code that utilizes interfaces in Java. It outlines various testing strategies and provides a clear example to demonstrate the approach.

Java, Testing, Code, Interfaces, Unit Testing, Mocking, TDD

// Java Interface public interface Calculator { int add(int a, int b); } // Implementation of the Interface public class SimpleCalculator implements Calculator { public int add(int a, int b) { return a + b; } } // Test Class import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; public class SimpleCalculatorTest { @Test public void testAdd() { Calculator calculator = new SimpleCalculator(); assertEquals(5, calculator.add(2, 3)); } }

Java Testing Code Interfaces Unit Testing Mocking TDD

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