// annotations/HashSetTest.java // (c)2021 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. // {java onjava.atunit.AtUnit // build/classes/java/main/annotations/HashSetTest.class} package annotations; import java.util.*; import onjava.atunit.*; import onjava.*; public class HashSetTest { HashSet testObject = new HashSet<>(); @Test void initialization() { assert testObject.isEmpty(); } @Test void tContains() { testObject.add("one"); assert testObject.contains("one"); } @Test void tRemove() { testObject.add("one"); testObject.remove("one"); assert testObject.isEmpty(); } } /* Output: annotations.HashSetTest . tContains . initialization . tRemove OK (3 tests) */