[BAEL-12897] - Moved set related articles from core-java-collections, core-java to core-java-collections-set

2019-04-28 23:25:52 +05:30
parent a6b462c7eb
commit 566ce43d90
7 changed files with 5 additions and 5 deletions
@@ -1,99 +0,0 @@
-package com.baeldung.java.set;
-
-import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.*;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class SetUnitTest {
-
-    private static final Logger LOG = LoggerFactory.getLogger(SetUnitTest.class);
-
-    @Test
-    public void givenTreeSet_whenRetrievesObjects_thenNaturalOrder() {
-        Set<String> set = new TreeSet<>();
-        set.add("Baeldung");
-        set.add("is");
-        set.add("Awesome");
-        assertEquals(3, set.size());
-        assertTrue(set.iterator()
-            .next()
-            .equals("Awesome"));
-    }
-
-    @Test(expected = NullPointerException.class)
-    public void givenTreeSet_whenAddNullObject_thenNullPointer() {
-        Set<String> set = new TreeSet<>();
-        set.add("Baeldung");
-        set.add("is");
-        set.add(null);
-    }
-
-    @Test
-    public void givenHashSet_whenAddNullObject_thenOK() {
-        Set<String> set = new HashSet<>();
-        set.add("Baeldung");
-        set.add("is");
-        set.add(null);
-        assertEquals(3, set.size());
-    }
-
-    @Test
-    public void givenHashSetAndTreeSet_whenAddObjects_thenHashSetIsFaster() {
-
-        long hashSetInsertionTime = measureExecution(() -> {
-            Set<String> set = new HashSet<>();
-            set.add("Baeldung");
-            set.add("is");
-            set.add("Awesome");
-        });
-
-        long treeSetInsertionTime = measureExecution(() -> {
-            Set<String> set = new TreeSet<>();
-            set.add("Baeldung");
-            set.add("is");
-            set.add("Awesome");
-        });
-
-        LOG.debug("HashSet insertion time: {}", hashSetInsertionTime);
-        LOG.debug("TreeSet insertion time: {}", treeSetInsertionTime);
-    }
-
-    @Test
-    public void givenHashSetAndTreeSet_whenAddDuplicates_thenOnlyUnique() {
-        Set<String> set = new HashSet<>();
-        set.add("Baeldung");
-        set.add("Baeldung");
-        assertTrue(set.size() == 1);
-
-        Set<String> set2 = new TreeSet<>();
-        set2.add("Baeldung");
-        set2.add("Baeldung");
-        assertTrue(set2.size() == 1);
-    }
-
-    @Test(expected = ConcurrentModificationException.class)
-    public void givenHashSet_whenModifyWhenIterator_thenFailFast() {
-        Set<String> set = new HashSet<>();
-        set.add("Baeldung");
-        Iterator<String> it = set.iterator();
-
-        while (it.hasNext()) {
-            set.add("Awesome");
-            it.next();
-        }
-    }
-
-    private static long measureExecution(Runnable task) {
-        long startTime = System.nanoTime();
-        task.run();
-        long endTime = System.nanoTime();
-        long executionTime = endTime - startTime;
-        LOG.debug(String.valueOf(executionTime));
-        return executionTime;
-    }
-}