common/util/src/test/java/org/opendaylight/yangtools/util/ReadWriteTrieMapTest.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.util;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12 import static org.junit.Assert.assertNotNull;
  13 import static org.junit.Assert.assertTrue;
  14
  15 import com.romix.scala.collection.concurrent.TrieMap;
  16 import java.util.Collection;
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.Map.Entry;
  20 import java.util.Set;
  21 import org.junit.Test;
  22
  23 public class ReadWriteTrieMapTest {
  24
  25     @Test
  26     public void testMethodsOfReadWriteTrieMap() {
  27         final TrieMap<String, String> trieMap = new TrieMap<>();
  28         trieMap.put("0", "zero");
  29         trieMap.put("1", "one");
  30
  31         final ReadWriteTrieMap<String, String> readWriteTrieMap = new ReadWriteTrieMap<>(trieMap, 5);
  32
  33         assertNotNull("Object readOnlyTrieMap shouldn't be 'null'.", readWriteTrieMap);
  34
  35         assertEquals("Size of readOnlyTrieMap should be '5'.", 5, readWriteTrieMap.size());
  36         assertFalse("Object readOnlyTrieMap shouldn't be empty.", readWriteTrieMap.isEmpty());
  37
  38         assertTrue("Object readOnlyTrieMap should have key '0'.", readWriteTrieMap.containsKey("0"));
  39         assertTrue("Object readOnlyTrieMap should have value 'zero'.", readWriteTrieMap.containsValue("zero"));
  40         assertEquals("Object readOnlyTrieMap should have value 'zero'.", "zero", readWriteTrieMap.get("0"));
  41
  42         final Map<String, String> rwMap = readWriteTrieMap;
  43         rwMap.put("2", "two");
  44         rwMap.put("3", "three");
  45
  46         assertEquals("Removed value from readOnlyTrieMap should be 'one'.", "one", rwMap.remove("1"));
  47
  48         final Set<String> trieMapKeySet = readWriteTrieMap.keySet();
  49         assertEquals("Size of keySet should be '3'.", 3, trieMapKeySet.size());
  50
  51         final Collection<String> trieMapValues = readWriteTrieMap.values();
  52         assertEquals("Size of values should be '3'.", 3, trieMapValues.size());
  53
  54         assertTrue("Entry set of readWriteTrieMap and trieMap should by equals.",
  55             convertSetEntryToMap(readWriteTrieMap.entrySet()).equals(trieMap));
  56
  57         trieMap.put("2", "two");
  58         final ReadWriteTrieMap<String, String> readWriteTrieMap2 = new ReadWriteTrieMap<>(trieMap, 4);
  59
  60         assertFalse("Objects readWriteTrieMap and readOnlyTrieMap2 should be different.",
  61             readWriteTrieMap.equals(readWriteTrieMap2));
  62         assertFalse("Hash codes of object readWriteTrieMap and readOnelyTrieMap2 should be different.",
  63             readWriteTrieMap.hashCode() == readWriteTrieMap2.hashCode());
  64
  65         final Map<String, String> readOnlyTrieMap = readWriteTrieMap.toReadOnly();
  66         readWriteTrieMap.clear();
  67         assertEquals("Size of readWriteTrieMap should be '0'.", 0, readWriteTrieMap.size());
  68         assertEquals("Size of readOnlyTrieMap should be '6'.", 6, readOnlyTrieMap.size());
  69     }
  70
  71     public Map<String, String> convertSetEntryToMap(final Set<Entry<String, String>> input) {
  72         Map<String, String> resultMap = new HashMap<>();
  73         for (Entry<String, String> entry : input) {
  74             resultMap.put(entry.getKey(), entry.getValue());
  75         }
  76         return resultMap;
  77     }
  78 }