1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.collections4.trie;
18
19 import static org.junit.jupiter.api.Assertions.assertSame;
20 import static org.junit.jupiter.api.Assertions.assertThrows;
21 import static org.junit.jupiter.api.Assertions.assertTrue;
22
23 import org.apache.commons.collections4.Trie;
24 import org.apache.commons.collections4.Unmodifiable;
25 import org.apache.commons.collections4.map.AbstractSortedMapTest;
26 import org.junit.jupiter.api.Test;
27
28 /**
29 * Extension of {@link AbstractSortedMapTest} for exercising the
30 * {@link UnmodifiableTrie} implementation.
31 *
32 * @param <V> the value type.
33 */
34 public class UnmodifiableTrieTest<V> extends AbstractSortedMapTest<String, V> {
35
36 @Override
37 public String getCompatibilityVersion() {
38 return "4";
39 }
40
41 @Override
42 public boolean isPutAddSupported() {
43 return false;
44 }
45
46 @Override
47 public boolean isPutChangeSupported() {
48 return false;
49 }
50
51 @Override
52 public boolean isRemoveSupported() {
53 return false;
54 }
55
56 @Override
57 public Trie<String, V> makeFullMap() {
58 final Trie<String, V> m = new PatriciaTrie<>();
59 addSampleMappings(m);
60 return UnmodifiableTrie.unmodifiableTrie(m);
61 }
62
63 @Override
64 public Trie<String, V> makeObject() {
65 return UnmodifiableTrie.unmodifiableTrie(new PatriciaTrie<>());
66 }
67
68 @Test
69 public void testDecorateFactory() {
70 final Trie<String, V> trie = makeFullMap();
71 assertSame(trie, UnmodifiableTrie.unmodifiableTrie(trie));
72
73 assertThrows(NullPointerException.class, () -> UnmodifiableTrie.unmodifiableTrie(null));
74 }
75
76 @Test
77 public void testUnmodifiable() {
78 assertTrue(makeObject() instanceof Unmodifiable);
79 assertTrue(makeFullMap() instanceof Unmodifiable);
80 }
81
82 // public void testCreate() throws Exception {
83 // resetEmpty();
84 // writeExternalFormToDisk(
85 // (java.io.Serializable) map,
86 // "src/test/resources/data/test/UnmodifiableTrie.emptyCollection.version4.obj");
87 // resetFull();
88 // writeExternalFormToDisk(
89 // (java.io.Serializable) map,
90 // "src/test/resources/data/test/UnmodifiableTrie.fullCollection.version4.obj");
91 // }
92
93 }