An Overview of the Technical Principles of JUnit Pioneer Framework in Java Class Libraries

import org.junit.jupiter.api.Test; import org.junitpioneer.jupiter.SetSystemProperty; import org.junitpioneer.jupiter.StdIo; import static org.junit.jupiter.api.Assertions.assertEquals; @StdIo @SetSystemProperty(key = "my.property", value = "test") public class MyTestCase { @Test public void testMyMethod() { System.out.println("Running testMyMethod"); int result = myMethod(); assertEquals(42, result); } private int myMethod() { // ... return 42; } }