ForwardingListIteratorTest.java revision 1d580d0f6ee4f21eb309ba7b509d2c6d671c4044 
1/*
2 * Copyright (C) 2007 The Guava Authors
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.google.common.collect;
18
19import java.util.ListIterator;
20
21/**
22 * Tests for {@code ForwardingListIterator}.
23 *
24 * @author Robert Konigsberg
25 */
26public class ForwardingListIteratorTest extends ForwardingTestCase {
27
28  private ForwardingListIterator<String> forward;
29
30  @Override public void setUp() throws Exception {
31    super.setUp();
32    /*
33     * Class parameters must be raw, so we can't create a proxy with generic
34     * type arguments. The created proxy only records calls and returns null, so
35     * the type is irrelevant at runtime.
36     */
37    @SuppressWarnings("unchecked")
38    final ListIterator<String> li = createProxyInstance(ListIterator.class);
39    forward = new ForwardingListIterator<String>() {
40      @Override protected ListIterator<String> delegate() {
41        return li;
42      }
43    };
44  }
45
46  public void testAdd_T() {
47    forward.add("asdf");
48    assertEquals("[add(Object)]", getCalls());
49  }
50
51  public void testHasNext() {
52    forward.hasNext();
53    assertEquals("[hasNext]", getCalls());
54  }
55
56  public void testHasPrevious() {
57    forward.hasPrevious();
58    assertEquals("[hasPrevious]", getCalls());
59  }
60
61  public void testNext() {
62    forward.next();
63    assertEquals("[next]", getCalls());
64  }
65
66  public void testNextIndex() {
67    forward.nextIndex();
68    assertEquals("[nextIndex]", getCalls());
69  }
70
71  public void testPrevious() {
72    forward.previous();
73    assertEquals("[previous]", getCalls());
74  }
75
76  public void testPreviousIndex() {
77    forward.previousIndex();
78    assertEquals("[previousIndex]", getCalls());
79  }
80
81  public void testRemove() {
82    forward.remove();
83    assertEquals("[remove]", getCalls());
84  }
85
86  public void testSet_T() {
87    forward.set("asdf");
88    assertEquals("[set(Object)]", getCalls());
89  }
90}
91