package org.apache.lucene.util.collections;
import org.junit.Test;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.collections.IntArray;
/*
* 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.
*/
public class IntArrayTest extends LuceneTestCase {
@Test
public void test0() {
IntArray array = new IntArray();
assertEquals(0, array.size());
for (int i = 0; i < 100; ++i) {
array.addToArray(i);
}
assertEquals(100, array.size());
for (int i = 0; i < 100; ++i) {
assertEquals(i, array.get(i));
}
assertTrue(array.equals(array));
}
@Test
public void test1() {
IntArray array = new IntArray();
IntArray array2 = new IntArray();
assertEquals(0, array.size());
for (int i = 0; i < 100; ++i) {
array.addToArray(99-i);
array2.addToArray(99-i);
}
assertEquals(100, array.size());
for (int i = 0; i < 100; ++i) {
assertEquals(i, array.get(99-i));
}
array.sort();
for (int i = 0; i < 100; ++i) {
assertEquals(i, array.get(i));
}
assertTrue(array.equals(array2));
}
@Test
public void test2() {
IntArray array = new IntArray();
IntArray array2 = new IntArray();
IntArray array3 = new IntArray();
for (int i = 0; i < 100; ++i) {
array.addToArray(i);
}
for (int i = 0; i < 100; ++i) {
array2.addToArray(i*2);
}
for (int i = 0; i < 50; ++i) {
array3.addToArray(i*2);
}
assertFalse(array.equals(array2));
array.intersect(array2);
assertTrue(array.equals(array3));
assertFalse(array.equals(array2));
}
@Test
public void testSet() {
int[] original = new int[] { 2,4,6,8,10,12,14 };
int[] toSet = new int[] { 1,3,5,7,9,11};
IntArray arr = new IntArray();
for (int val : original) {
arr.addToArray(val);
}
for (int i = 0; i < toSet.length; i++ ) {
int val = toSet[i];
arr.set(i, val);
}
// Test to see if the set worked correctly
for (int i = 0; i < toSet.length; i++ ) {
assertEquals(toSet[i], arr.get(i));
}
// Now attempt to set something outside of the array
try {
arr.set(100, 99);
fail("IntArray.set should have thrown an exception for attempting to set outside the array");
} catch (ArrayIndexOutOfBoundsException e) {
// We expected this to happen so let it fall through
// silently
}
}
}