/*
* 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.assertFalse;
import static org.junit.Assert.assertTrue;
import it.unimi.dsi.fastutil.ints.Int2FloatMap;
import java.io.IOException;
import java.util.Random;
import junit.framework.JUnit4TestAdapter;
import org.junit.Test;
import edu.umd.cloud9.io.map.Int2FloatOpenHashMapWritable;
public class Int2FloatOpenHashMapWritableTest {
@Test
public void testBasic() throws IOException {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
m.put(2, 5.0f);
m.put(1, 22.0f);
float value;
assertEquals(2, m.size());
value = m.get(2);
assertEquals(5.0f, value, 10e-6);
value = m.remove(2);
assertEquals(1, m.size());
value = m.get(1);
assertEquals(22.0f, value, 10e-6);
}
@Test
public void testIncrement() throws IOException {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
m.put(2, 7.0f);
m.put(1, 29.0f);
assertEquals(7, m.get(2), 10e-6);
assertEquals(29, m.get(1), 10e-6);
m.increment(2);
m.increment(1);
m.increment(3);
assertEquals(8, m.get(2), 10e-6);
assertEquals(30, m.get(1), 10e-6);
assertEquals(1, m.get(3), 10e-6);
m.increment(1, 3.0f);
m.increment(3, 5.0f);
assertEquals(8, m.get(2), 10e-6);
assertEquals(33, m.get(1), 10e-6);
assertEquals(6, m.get(3), 10e-6);
}
@Test
public void testSerialize1() throws IOException {
Int2FloatOpenHashMapWritable.setLazyDecodeFlag(false);
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(3, 5.0f);
m1.put(4, 22.0f);
Int2FloatOpenHashMapWritable n2 = Int2FloatOpenHashMapWritable.create(m1.serialize());
float value;
assertEquals(2, n2.size());
value = n2.get(3);
assertEquals(5.0f, value, 10e-6);
value = n2.remove(3);
assertEquals(1, n2.size());
value = n2.get(4);
assertEquals(22.0f, value, 10e-6);
}
@Test
public void testSerializeLazy1() throws IOException {
Int2FloatOpenHashMapWritable.setLazyDecodeFlag(true);
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(3, 5);
m1.put(4, 22);
Int2FloatOpenHashMapWritable m2 = Int2FloatOpenHashMapWritable.create(m1.serialize());
assertEquals(0, m2.size());
assertFalse(m2.hasBeenDecoded());
int[] keys = m2.getKeys();
float[] values = m2.getValues();
assertEquals(3, keys[0]);
assertEquals(4, keys[1]);
assertEquals(5.0f, values[0], 10e-6);
assertEquals(22.0f, values[1], 10e-6);
m2.decode();
assertTrue(m2.hasBeenDecoded());
float value;
assertEquals(2, m2.size());
value = m2.get(3);
assertEquals(5.0f, value, 10e-6);
value = m2.remove(3);
assertEquals(1, m2.size());
value = m2.get(4);
assertEquals(22.0f, value, 10e-6);
}
@Test
public void testSerializeLazy2() throws IOException {
Int2FloatOpenHashMapWritable.setLazyDecodeFlag(true);
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(3, 5);
m1.put(4, 22);
// Object m2 should not have been decoded, size lazy decode flag is
// true.
Int2FloatOpenHashMapWritable m2 = Int2FloatOpenHashMapWritable.create(m1.serialize());
// Even though m2 hasn't be decoded, we should be able to properly
// serialize it.
Int2FloatOpenHashMapWritable m3 = Int2FloatOpenHashMapWritable.create(m2.serialize());
assertEquals(0, m3.size());
assertFalse(m3.hasBeenDecoded());
int[] keys = m3.getKeys();
float[] values = m3.getValues();
assertEquals(3, keys[0]);
assertEquals(4, keys[1]);
assertEquals(5.0f, values[0], 10e-6);
assertEquals(22.0f, values[1], 10e-6);
m3.decode();
assertTrue(m3.hasBeenDecoded());
float value;
assertEquals(2, m3.size());
value = m3.get(3);
assertEquals(5.0f, value, 10e-6);
value = m3.remove(3);
assertEquals(1, m3.size());
value = m3.get(4);
assertEquals(22.0f, value, 10e-6);
}
@Test
public void testSerializeEmpty() throws IOException {
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
// Make sure this does nothing.
m1.decode();
assertEquals(0, m1.size());
Int2FloatMap m2 = Int2FloatOpenHashMapWritable.create(m1.serialize());
assertEquals(0, m2.size());
}
@Test
public void testBasic1() {
int size = 100000;
Random r = new Random();
float[] floats = new float[size];
Int2FloatMap map = new Int2FloatOpenHashMapWritable();
for (int i = 0; i < size; i++) {
float k = r.nextFloat() * size;
map.put(i, k);
floats[i] = k;
}
for (int i = 0; i < size; i++) {
assertEquals(floats[i], map.get(i), 10e-6);
assertTrue(map.containsKey(i));
}
}
@Test
public void testUpdate() {
int size = 100000;
Random r = new Random();
float[] floats = new float[size];
Int2FloatMap map = new Int2FloatOpenHashMapWritable();
for (int i = 0; i < size; i++) {
float k = r.nextFloat() * size;
map.put(i, k);
floats[i] = k;
}
assertEquals(size, map.size());
for (int i = 0; i < size; i++) {
map.put(i, floats[i] + 1.0f);
}
assertEquals(size, map.size());
for (int i = 0; i < size; i++) {
assertEquals(floats[i] + 1.0f, map.get(i), 10e-6);
assertTrue(map.containsKey(i));
}
}
@Test
public void testPlus() throws IOException {
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(1, 5.0f);
m1.put(2, 22.0f);
Int2FloatOpenHashMapWritable m2 = new Int2FloatOpenHashMapWritable();
m2.put(1, 4.0f);
m2.put(3, 5.0f);
m1.plus(m2);
assertEquals(3, m1.size(), 3);
assertEquals(9.0f, m1.get(1), 10e-6);
assertEquals(22.0f, m1.get(2), 10e-6);
assertEquals(5.0f, m1.get(3), 10e-6);
}
@Test
public void testLazyPlus() throws IOException {
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(1, 5.0f);
m1.put(2, 22.0f);
Int2FloatOpenHashMapWritable m2 = new Int2FloatOpenHashMapWritable();
m2.put(1, 4.0f);
m2.put(3, 5.0f);
Int2FloatOpenHashMapWritable.setLazyDecodeFlag(true);
Int2FloatOpenHashMapWritable m3 = Int2FloatOpenHashMapWritable.create(m2.serialize());
assertEquals(0, m3.size());
m1.lazyplus(m3);
assertEquals(3, m1.size(), 3);
assertEquals(9.0f, m1.get(1), 10e-6);
assertEquals(22.0f, m1.get(2), 10e-6);
assertEquals(5.0f, m1.get(3), 10e-6);
}
@Test
public void testDot() throws IOException {
Int2FloatOpenHashMapWritable m1 = new Int2FloatOpenHashMapWritable();
m1.put(1, 2.0f);
m1.put(2, 1.0f);
m1.put(3, 3.0f);
Int2FloatOpenHashMapWritable m2 = new Int2FloatOpenHashMapWritable();
m2.put(1, 1.0f);
m2.put(2, 4.0f);
m2.put(4, 5.0f);
float s = m1.dot(m2);
assertEquals(6.0f, s, 10e-6);
}
@Test
public void testSortedEntries1() {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
m.put(1, 5.0f);
m.put(2, 2.0f);
m.put(3, 3.0f);
m.put(4, 3.0f);
m.put(5, 1.0f);
Int2FloatMap.Entry[] e = m.getEntriesSortedByValue();
assertEquals(5, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5.0f, e[0].getFloatValue(), 10e-6);
assertEquals(3, e[1].getIntKey());
assertEquals(3.0f, e[1].getFloatValue(), 10e-6);
assertEquals(4, e[2].getIntKey());
assertEquals(3.0f, e[2].getFloatValue(), 10e-6);
assertEquals(2, e[3].getIntKey());
assertEquals(2.0f, e[3].getFloatValue(), 10e-6);
assertEquals(5, e[4].getIntKey());
assertEquals(1.0f, e[4].getFloatValue(), 10e-6);
}
@Test
public void testSortedEntries2() {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
m.put(1, 5.0f);
m.put(2, 2.0f);
m.put(3, 3.0f);
m.put(4, 3.0f);
m.put(5, 1.0f);
Int2FloatMap.Entry[] e = m.getEntriesSortedByValue(2);
assertEquals(2, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5.0f, e[0].getFloatValue(), 10e-6);
assertEquals(3, e[1].getIntKey());
assertEquals(3.0f, e[1].getFloatValue(), 10e-6);
}
@Test
public void testSortedEntries3() {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
m.put(1, 5.0f);
m.put(2, 2.0f);
Int2FloatMap.Entry[] e = m.getEntriesSortedByValue(5);
assertEquals(2, e.length);
assertEquals(1, e[0].getIntKey());
assertEquals(5.0f, e[0].getFloatValue(), 10e-6);
assertEquals(2, e[1].getIntKey());
assertEquals(2.0f, e[1].getFloatValue(), 10e-6);
}
@Test
public void testSortedEntries4() {
Int2FloatOpenHashMapWritable m = new Int2FloatOpenHashMapWritable();
Int2FloatMap.Entry[] e = m.getEntriesSortedByValue();
assertTrue(e == null);
}
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(Int2FloatOpenHashMapWritableTest.class);
}
}