/*
* Cloud9: A MapReduce Library for Hadoop
*
* Licensed 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 edu.umd.cloud9.io.fastutil;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import it.unimi.dsi.fastutil.ints.Int2IntMap;
import java.io.IOException;
import java.util.Random;
import junit.framework.JUnit4TestAdapter;
import org.junit.Test;
import edu.umd.cloud9.io.map.Int2IntOpenHashMapWritable;
public class Int2IntOpenHashMapWritableTest {
@Test
public void testBasic() throws IOException {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
m.put(2, 5);
m.put(1, 22);
int value;
assertEquals(2, m.size());
value = m.get(2);
assertEquals(5, value);
value = m.remove(2);
assertEquals(1, m.size());
value = m.get(1);
assertEquals(22, value);
}
@Test
public void testIncrement() throws IOException {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
m.put(2, 7);
m.put(1, 29);
assertEquals(7, m.get(2));
assertEquals(29, m.get(1));
m.increment(2);
m.increment(1);
m.increment(3);
assertEquals(8, m.get(2));
assertEquals(30, m.get(1));
assertEquals(1, m.get(3));
m.increment(1, 3);
m.increment(3, 5);
assertEquals(8, m.get(2));
assertEquals(33, m.get(1));
assertEquals(6, m.get(3));
}
@Test
public void testSerialize1() throws IOException {
Int2IntOpenHashMapWritable.setLazyDecodeFlag(false);
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(3, 5);
m1.put(4, 22);
Int2IntOpenHashMapWritable n2 = Int2IntOpenHashMapWritable.create(m1.serialize());
int value;
assertEquals(2, n2.size());
value = n2.get(3);
assertEquals(5, value);
value = n2.remove(3);
assertEquals(1, n2.size());
value = n2.get(4);
assertEquals(22, value);
}
@Test
public void testSerializeLazy1() throws IOException {
Int2IntOpenHashMapWritable.setLazyDecodeFlag(true);
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(3, 5);
m1.put(4, 22);
Int2IntOpenHashMapWritable m2 = Int2IntOpenHashMapWritable.create(m1.serialize());
assertEquals(0, m2.size());
assertFalse(m2.hasBeenDecoded());
int[] keys = m2.getKeys();
int[] values = m2.getValues();
assertEquals(3, keys[0]);
assertEquals(4, keys[1]);
assertEquals(5, values[0]);
assertEquals(22, values[1]);
m2.decode();
assertTrue(m2.hasBeenDecoded());
int value;
assertEquals(2, m2.size());
value = m2.get(3);
assertEquals(5, value);
value = m2.remove(3);
assertEquals(1, m2.size());
value = m2.get(4);
assertEquals(22, value);
}
@Test
public void testSerializeLazy2() throws IOException {
Int2IntOpenHashMapWritable.setLazyDecodeFlag(true);
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(3, 5);
m1.put(4, 22);
// Object m2 should not have been decoded, size lazy decode flag is
// true.
Int2IntOpenHashMapWritable m2 = Int2IntOpenHashMapWritable.create(m1.serialize());
// Even though m2 hasn't be decoded, we should be able to properly
// serialize it.
Int2IntOpenHashMapWritable m3 = Int2IntOpenHashMapWritable.create(m2.serialize());
assertEquals(0, m3.size());
assertFalse(m3.hasBeenDecoded());
int[] keys = m3.getKeys();
int[] values = m3.getValues();
assertEquals(3, keys[0]);
assertEquals(4, keys[1]);
assertEquals(5, values[0]);
assertEquals(22, values[1]);
m3.decode();
assertTrue(m3.hasBeenDecoded());
int value;
assertEquals(2, m3.size());
value = m3.get(3);
assertEquals(5, value);
value = m3.remove(3);
assertEquals(1, m3.size());
value = m3.get(4);
assertEquals(22, value);
}
@Test
public void testSerializeEmpty() throws IOException {
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
// make sure this does nothing
m1.decode();
assertEquals(0, m1.size());
Int2IntMap m2 = Int2IntOpenHashMapWritable.create(m1.serialize());
assertEquals(0, m2.size());
}
@Test
public void testBasic1() {
int size = 100000;
Random r = new Random();
int[] ints = new int[size];
Int2IntMap map = new Int2IntOpenHashMapWritable();
for (int i = 0; i < size; i++) {
int k = r.nextInt(size);
map.put(i, k);
ints[i] = k;
}
for (int i = 0; i < size; i++) {
assertEquals(ints[i], map.get(i));
assertTrue(map.containsKey(i));
}
}
@Test
public void testUpdate() {
int size = 100000;
Random r = new Random();
int[] ints = new int[size];
Int2IntMap map = new Int2IntOpenHashMapWritable();
for (int i = 0; i < size; i++) {
int k = r.nextInt(size);
map.put(i, k);
ints[i] = k;
}
assertEquals(size, map.size());
for (int i = 0; i < size; i++) {
map.put(i, ints[i] + 1);
}
assertEquals(size, map.size());
for (int i = 0; i < size; i++) {
assertEquals(ints[i] + 1, map.get(i));
assertTrue(map.containsKey(i));
}
}
@Test
public void testPlus() throws IOException {
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(1, 5);
m1.put(2, 22);
Int2IntOpenHashMapWritable m2 = new Int2IntOpenHashMapWritable();
m2.put(1, 4);
m2.put(3, 5);
m1.plus(m2);
assertEquals(3, m1.size());
assertEquals(9, m1.get(1));
assertEquals(22, m1.get(2));
assertEquals(5, m1.get(3));
}
@Test
public void testLazyPlus() throws IOException {
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(1, 5);
m1.put(2, 22);
Int2IntOpenHashMapWritable m2 = new Int2IntOpenHashMapWritable();
m2.put(1, 4);
m2.put(3, 5);
Int2IntOpenHashMapWritable.setLazyDecodeFlag(true);
Int2IntOpenHashMapWritable m3 = Int2IntOpenHashMapWritable.create(m2.serialize());
assertEquals(0, m3.size());
m1.lazyplus(m3);
assertEquals(3, m1.size());
assertEquals(9, m1.get(1));
assertEquals(22, m1.get(2));
assertEquals(5, m1.get(3));
}
@Test
public void testDot() throws IOException {
Int2IntOpenHashMapWritable m1 = new Int2IntOpenHashMapWritable();
m1.put(1, 2);
m1.put(2, 1);
m1.put(3, 3);
Int2IntOpenHashMapWritable m2 = new Int2IntOpenHashMapWritable();
m2.put(1, 1);
m2.put(2, 4);
m2.put(4, 5);
int s = m1.dot(m2);
assertEquals(6, s);
}
@Test
public void testSortedEntries1() {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
m.put(1, 5);
m.put(2, 2);
m.put(3, 3);
m.put(4, 3);
m.put(5, 1);
Int2IntMap.Entry[] e = m.getEntriesSortedByValue();
assertEquals(5, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5, e[0].getIntValue());
assertEquals(3, e[1].getIntKey());
assertEquals(3, e[1].getIntValue());
assertEquals(4, e[2].getIntKey());
assertEquals(3, e[2].getIntValue());
assertEquals(2, e[3].getIntKey());
assertEquals(2, e[3].getIntValue());
assertEquals(5, e[4].getIntKey());
assertEquals(1, e[4].getIntValue());
}
@Test
public void testSortedEntries2() {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
m.put(1, 5);
m.put(2, 2);
m.put(3, 3);
m.put(4, 3);
m.put(5, 1);
Int2IntMap.Entry[] e = m.getEntriesSortedByValue(2);
assertEquals(2, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5, e[0].getIntValue());
assertEquals(3, e[1].getIntKey());
assertEquals(3, e[1].getIntValue());
}
@Test
public void testSortedEntries3() {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
m.put(1, 5);
m.put(2, 2);
Int2IntMap.Entry[] e = m.getEntriesSortedByValue(5);
assertEquals(2, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5, e[0].getIntValue());
assertEquals(2, e[1].getIntKey());
assertEquals(2, e[1].getIntValue());
}
@Test
public void testSortedEntries4() {
Int2IntOpenHashMapWritable m = new Int2IntOpenHashMapWritable();
Int2IntMap.Entry[] e = m.getEntriesSortedByValue();
assertTrue(e == null);
}
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(Int2IntOpenHashMapWritableTest.class);
}
}