/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tests.support;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;
public class Support_ListTest extends junit.framework.TestCase {
List<Integer> list; // must contain the Integers 0 to 99 in order
public Support_ListTest(String p1) {
super(p1);
}
public Support_ListTest(String p1, List<Integer> l) {
super(p1);
list = l;
}
@Override
public void runTest() {
int hashCode = 1;
for (int counter = 0; counter < 100; counter++) {
Object elem;
elem = list.get(counter);
hashCode = 31 * hashCode + elem.hashCode();
assertTrue("ListTest - get failed", elem
.equals(new Integer(counter)));
}
assertTrue("ListTest - hashCode failed", hashCode == list.hashCode());
list.add(50, new Integer(1000));
assertTrue("ListTest - a) add with index failed--did not insert", list
.get(50).equals(new Integer(1000)));
assertTrue(
"ListTest - b) add with index failed--did not move following elements",
list.get(51).equals(new Integer(50)));
assertTrue(
"ListTest - c) add with index failed--affected previous elements",
list.get(49).equals(new Integer(49)));
list.set(50, new Integer(2000));
assertTrue("ListTest - a) set failed--did not set", list.get(50)
.equals(new Integer(2000)));
assertTrue("ListTest - b) set failed--affected following elements",
list.get(51).equals(new Integer(50)));
assertTrue("ListTest - c) set failed--affected previous elements", list
.get(49).equals(new Integer(49)));
list.remove(50);
assertTrue("ListTest - a) remove with index failed--did not remove",
list.get(50).equals(new Integer(50)));
assertTrue(
"ListTest - b) remove with index failed--did not move following elements",
list.get(51).equals(new Integer(51)));
assertTrue(
"ListTest - c) remove with index failed--affected previous elements",
list.get(49).equals(new Integer(49)));
List<Integer> myList = new LinkedList<Integer>();
myList.add(new Integer(500));
myList.add(new Integer(501));
myList.add(new Integer(502));
list.addAll(50, myList);
assertTrue("ListTest - a) addAll with index failed--did not insert",
list.get(50).equals(new Integer(500)));
assertTrue("ListTest - b) addAll with index failed--did not insert",
list.get(51).equals(new Integer(501)));
assertTrue("ListTest - c) addAll with index failed--did not insert",
list.get(52).equals(new Integer(502)));
assertTrue(
"ListTest - d) addAll with index failed--did not move following elements",
list.get(53).equals(new Integer(50)));
assertTrue(
"ListTest - e) addAll with index failed--affected previous elements",
list.get(49).equals(new Integer(49)));
List<Integer> mySubList = list.subList(50, 53);
assertEquals(3, mySubList.size());
assertTrue(
"ListTest - a) sublist Failed--does not contain correct elements",
mySubList.get(0).equals(new Integer(500)));
assertTrue(
"ListTest - b) sublist Failed--does not contain correct elements",
mySubList.get(1).equals(new Integer(501)));
assertTrue(
"ListTest - c) sublist Failed--does not contain correct elements",
mySubList.get(2).equals(new Integer(502)));
t_listIterator(mySubList);
mySubList.clear();
assertEquals("ListTest - Clearing the sublist did not remove the appropriate elements from the original list",
100, list.size());
t_listIterator(list);
ListIterator<Integer> li = list.listIterator();
for (int counter = 0; li.hasNext(); counter++) {
Object elem;
elem = li.next();
assertTrue("ListTest - listIterator failed", elem
.equals(new Integer(counter)));
}
new Support_CollectionTest("", list).runTest();
}
public void t_listIterator(List<Integer> list) {
ListIterator<Integer> li = list.listIterator(1);
assertTrue("listIterator(1)", li.next() == list.get(1));
int orgSize = list.size();
li = list.listIterator();
for (int i = 0; i <= orgSize; i++) {
if (i == 0) {
assertTrue("list iterator hasPrevious(): " + i, !li
.hasPrevious());
} else {
assertTrue("list iterator hasPrevious(): " + i, li
.hasPrevious());
}
if (i == list.size()) {
assertTrue("list iterator hasNext(): " + i, !li.hasNext());
} else {
assertTrue("list iterator hasNext(): " + i, li.hasNext());
}
assertTrue("list iterator nextIndex(): " + i, li.nextIndex() == i);
assertTrue("list iterator previousIndex(): " + i, li
.previousIndex() == i - 1);
boolean exception = false;
try {
assertTrue("list iterator next(): " + i, li.next() == list
.get(i));
} catch (NoSuchElementException e) {
exception = true;
}
if (i == list.size()) {
assertTrue("list iterator next() exception: " + i, exception);
} else {
assertTrue("list iterator next() exception: " + i, !exception);
}
}
for (int i = orgSize - 1; i >= 0; i--) {
assertTrue("list iterator previous(): " + i, li.previous() == list
.get(i));
assertTrue("list iterator nextIndex()2: " + i, li.nextIndex() == i);
assertTrue("list iterator previousIndex()2: " + i, li
.previousIndex() == i - 1);
if (i == 0) {
assertTrue("list iterator hasPrevious()2: " + i, !li
.hasPrevious());
} else {
assertTrue("list iterator hasPrevious()2: " + i, li
.hasPrevious());
}
assertTrue("list iterator hasNext()2: " + i, li.hasNext());
}
boolean exception = false;
try {
li.previous();
} catch (NoSuchElementException e) {
exception = true;
}
assertTrue("list iterator previous() exception", exception);
Integer add1 = new Integer(600);
Integer add2 = new Integer(601);
li.add(add1);
assertTrue("list iterator add(), size()", list.size() == (orgSize + 1));
assertEquals("list iterator add(), nextIndex()", 1, li.nextIndex());
assertEquals("list iterator add(), previousIndex()",
0, li.previousIndex());
Object next = li.next();
assertTrue("list iterator add(), next(): " + next, next == list.get(1));
li.add(add2);
Object previous = li.previous();
assertTrue("list iterator add(), previous(): " + previous,
previous == add2);
assertEquals("list iterator add(), nextIndex()2", 2, li.nextIndex());
assertEquals("list iterator add(), previousIndex()2",
1, li.previousIndex());
li.remove();
assertTrue("list iterator remove(), size()",
list.size() == (orgSize + 1));
assertEquals("list iterator remove(), nextIndex()", 2, li.nextIndex());
assertEquals("list iterator remove(), previousIndex()", 1, li
.previousIndex());
assertTrue("list iterator previous()2", li.previous() == list.get(1));
assertTrue("list iterator previous()3", li.previous() == list.get(0));
assertTrue("list iterator next()2", li.next() == list.get(0));
li.remove();
assertTrue("list iterator hasPrevious()3", !li.hasPrevious());
assertTrue("list iterator hasNext()3", li.hasNext());
assertTrue("list iterator size()", list.size() == orgSize);
assertEquals("list iterator nextIndex()3", 0, li.nextIndex());
assertEquals("list iterator previousIndex()3", -1, li.previousIndex());
}
}