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
18package tests.support;
19
20import java.util.LinkedList;
21import java.util.List;
22import java.util.ListIterator;
23import java.util.NoSuchElementException;
24
25public class Support_ListTest extends junit.framework.TestCase {
26
27    List<Integer> list; // must contain the Integers 0 to 99 in order
28
29    public Support_ListTest(String p1) {
30        super(p1);
31    }
32
33    public Support_ListTest(String p1, List<Integer> l) {
34        super(p1);
35        list = l;
36    }
37
38    @Override
39    public void runTest() {
40        int hashCode = 1;
41        for (int counter = 0; counter < 100; counter++) {
42            Object elem;
43            elem = list.get(counter);
44            hashCode = 31 * hashCode + elem.hashCode();
45            assertTrue("ListTest - get failed", elem
46                    .equals(new Integer(counter)));
47        }
48        assertTrue("ListTest - hashCode failed", hashCode == list.hashCode());
49
50        list.add(50, new Integer(1000));
51        assertTrue("ListTest - a) add with index failed--did not insert", list
52                .get(50).equals(new Integer(1000)));
53        assertTrue(
54                "ListTest - b) add with index failed--did not move following elements",
55                list.get(51).equals(new Integer(50)));
56        assertTrue(
57                "ListTest - c) add with index failed--affected previous elements",
58                list.get(49).equals(new Integer(49)));
59
60        list.set(50, new Integer(2000));
61        assertTrue("ListTest - a) set failed--did not set", list.get(50)
62                .equals(new Integer(2000)));
63        assertTrue("ListTest - b) set failed--affected following elements",
64                list.get(51).equals(new Integer(50)));
65        assertTrue("ListTest - c) set failed--affected previous elements", list
66                .get(49).equals(new Integer(49)));
67
68        list.remove(50);
69        assertTrue("ListTest - a) remove with index failed--did not remove",
70                list.get(50).equals(new Integer(50)));
71        assertTrue(
72                "ListTest - b) remove with index failed--did not move following elements",
73                list.get(51).equals(new Integer(51)));
74        assertTrue(
75                "ListTest - c) remove with index failed--affected previous elements",
76                list.get(49).equals(new Integer(49)));
77
78        List<Integer> myList = new LinkedList<Integer>();
79        myList.add(new Integer(500));
80        myList.add(new Integer(501));
81        myList.add(new Integer(502));
82
83        list.addAll(50, myList);
84        assertTrue("ListTest - a) addAll with index failed--did not insert",
85                list.get(50).equals(new Integer(500)));
86        assertTrue("ListTest - b) addAll with index failed--did not insert",
87                list.get(51).equals(new Integer(501)));
88        assertTrue("ListTest - c) addAll with index failed--did not insert",
89                list.get(52).equals(new Integer(502)));
90        assertTrue(
91                "ListTest - d) addAll with index failed--did not move following elements",
92                list.get(53).equals(new Integer(50)));
93        assertTrue(
94                "ListTest - e) addAll with index failed--affected previous elements",
95                list.get(49).equals(new Integer(49)));
96
97        List<Integer> mySubList = list.subList(50, 53);
98        assertEquals(3, mySubList.size());
99        assertTrue(
100                "ListTest - a) sublist Failed--does not contain correct elements",
101                mySubList.get(0).equals(new Integer(500)));
102        assertTrue(
103                "ListTest - b) sublist Failed--does not contain correct elements",
104                mySubList.get(1).equals(new Integer(501)));
105        assertTrue(
106                "ListTest - c) sublist Failed--does not contain correct elements",
107                mySubList.get(2).equals(new Integer(502)));
108
109        t_listIterator(mySubList);
110
111        mySubList.clear();
112        assertEquals("ListTest - Clearing the sublist did not remove the appropriate elements from the original list",
113                100, list.size());
114
115        t_listIterator(list);
116        ListIterator<Integer> li = list.listIterator();
117        for (int counter = 0; li.hasNext(); counter++) {
118            Object elem;
119            elem = li.next();
120            assertTrue("ListTest - listIterator failed", elem
121                    .equals(new Integer(counter)));
122        }
123
124        new Support_CollectionTest("", list).runTest();
125
126    }
127
128    public void t_listIterator(List<Integer> list) {
129        ListIterator<Integer> li = list.listIterator(1);
130        assertTrue("listIterator(1)", li.next() == list.get(1));
131
132        int orgSize = list.size();
133        li = list.listIterator();
134        for (int i = 0; i <= orgSize; i++) {
135            if (i == 0) {
136                assertTrue("list iterator hasPrevious(): " + i, !li
137                        .hasPrevious());
138            } else {
139                assertTrue("list iterator hasPrevious(): " + i, li
140                        .hasPrevious());
141            }
142            if (i == list.size()) {
143                assertTrue("list iterator hasNext(): " + i, !li.hasNext());
144            } else {
145                assertTrue("list iterator hasNext(): " + i, li.hasNext());
146            }
147            assertTrue("list iterator nextIndex(): " + i, li.nextIndex() == i);
148            assertTrue("list iterator previousIndex(): " + i, li
149                    .previousIndex() == i - 1);
150            boolean exception = false;
151            try {
152                assertTrue("list iterator next(): " + i, li.next() == list
153                        .get(i));
154            } catch (NoSuchElementException e) {
155                exception = true;
156            }
157            if (i == list.size()) {
158                assertTrue("list iterator next() exception: " + i, exception);
159            } else {
160                assertTrue("list iterator next() exception: " + i, !exception);
161            }
162        }
163
164        for (int i = orgSize - 1; i >= 0; i--) {
165            assertTrue("list iterator previous(): " + i, li.previous() == list
166                    .get(i));
167            assertTrue("list iterator nextIndex()2: " + i, li.nextIndex() == i);
168            assertTrue("list iterator previousIndex()2: " + i, li
169                    .previousIndex() == i - 1);
170            if (i == 0) {
171                assertTrue("list iterator hasPrevious()2: " + i, !li
172                        .hasPrevious());
173            } else {
174                assertTrue("list iterator hasPrevious()2: " + i, li
175                        .hasPrevious());
176            }
177            assertTrue("list iterator hasNext()2: " + i, li.hasNext());
178        }
179        boolean exception = false;
180        try {
181            li.previous();
182        } catch (NoSuchElementException e) {
183            exception = true;
184        }
185        assertTrue("list iterator previous() exception", exception);
186
187        Integer add1 = new Integer(600);
188        Integer add2 = new Integer(601);
189        li.add(add1);
190        assertTrue("list iterator add(), size()", list.size() == (orgSize + 1));
191        assertEquals("list iterator add(), nextIndex()", 1, li.nextIndex());
192        assertEquals("list iterator add(), previousIndex()",
193                0, li.previousIndex());
194        Object next = li.next();
195        assertTrue("list iterator add(), next(): " + next, next == list.get(1));
196        li.add(add2);
197        Object previous = li.previous();
198        assertTrue("list iterator add(), previous(): " + previous,
199                previous == add2);
200        assertEquals("list iterator add(), nextIndex()2", 2, li.nextIndex());
201        assertEquals("list iterator add(), previousIndex()2",
202                1, li.previousIndex());
203
204        li.remove();
205        assertTrue("list iterator remove(), size()",
206                list.size() == (orgSize + 1));
207        assertEquals("list iterator remove(), nextIndex()", 2, li.nextIndex());
208        assertEquals("list iterator remove(), previousIndex()", 1, li
209                .previousIndex());
210        assertTrue("list iterator previous()2", li.previous() == list.get(1));
211        assertTrue("list iterator previous()3", li.previous() == list.get(0));
212        assertTrue("list iterator next()2", li.next() == list.get(0));
213        li.remove();
214        assertTrue("list iterator hasPrevious()3", !li.hasPrevious());
215        assertTrue("list iterator hasNext()3", li.hasNext());
216        assertTrue("list iterator size()", list.size() == orgSize);
217        assertEquals("list iterator nextIndex()3", 0, li.nextIndex());
218        assertEquals("list iterator previousIndex()3", -1, li.previousIndex());
219    }
220}
221