package com.baeldung.distinct; import static org.junit.Assert.assertTrue; import java.util.List; import org.junit.Before; import org.junit.Test; import one.util.streamex.StreamEx; public class DistinctWithStreamexUnitTest { List personList; @Before public void init() { personList = PersonDataGenerator.getPersonListWithFakeValues(); } @Test public void whenFilterListByName_thenSizeShouldBe4() { List personListFiltered = StreamEx.of(personList).distinct(Person::getName).toList(); assertTrue(personListFiltered.size() == 4); } @Test public void whenFilterListByAge_thenSizeShouldBe2() { List personListFiltered = StreamEx.of(personList).distinct(Person::getAge).toList(); assertTrue(personListFiltered.size() == 2); } }