/*
* 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.util.map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.Random;
import junit.framework.JUnit4TestAdapter;
import org.junit.Test;
import edu.umd.cloud9.util.map.HMapII;
import edu.umd.cloud9.util.map.MapII;
import edu.umd.cloud9.util.map.MapII.Entry;
public class HMapIITest {
@Test
public void testBasic1() {
int size = 100000;
Random r = new Random();
int[] ints = new int[size];
MapII map = new HMapII();
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++) {
int v = map.get(i);
assertEquals(ints[i], v);
assertTrue(map.containsKey(i));
}
}
@Test
public void testUpdate() {
int size = 100000;
Random r = new Random();
int[] ints = new int[size];
MapII map = new HMapII();
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++) {
int v = map.get(i);
assertEquals(ints[i] + 1, v);
assertTrue(map.containsKey(i));
}
}
@Test
public void testBasic() throws IOException {
HMapII m = new HMapII();
m.put(1, 5);
m.put(2, 22);
float value;
assertEquals(m.size(), 2);
value = m.get(1);
assertTrue(value == 5);
value = m.remove(1);
assertEquals(m.size(), 1);
value = m.get(2);
assertTrue(value == 22);
}
@Test
public void testPlus() throws IOException {
HMapII m1 = new HMapII();
m1.put(1, 5);
m1.put(2, 22);
HMapII m2 = new HMapII();
m2.put(1, 4);
m2.put(3, 5);
m1.plus(m2);
assertEquals(m1.size(), 3);
assertTrue(m1.get(1) == 9);
assertTrue(m1.get(2) == 22);
assertTrue(m1.get(3) == 5);
}
@Test
public void testDot() throws IOException {
HMapII m1 = new HMapII();
m1.put(1, 2);
m1.put(2, 1);
m1.put(3, 3);
HMapII m2 = new HMapII();
m2.put(1, 1);
m2.put(2, 4);
m2.put(4, 5);
int s = m1.dot(m2);
assertTrue(s == 6);
}
@Test
public void testSortedEntries1() {
HMapII m = new HMapII();
m.put(1, 5);
m.put(2, 2);
m.put(3, 3);
m.put(4, 3);
m.put(5, 1);
Entry[] e = m.getEntriesSortedByValue();
assertEquals(5, e.length);
assertEquals(1, e[0].getKey());
assertEquals(5, e[0].getValue());
assertEquals(3, e[1].getKey());
assertEquals(3, e[1].getValue());
assertEquals(4, e[2].getKey());
assertEquals(3, e[2].getValue());
assertEquals(2, e[3].getKey());
assertEquals(2, e[3].getValue());
assertEquals(5, e[4].getKey());
assertEquals(1, e[4].getValue());
}
@Test
public void testSortedEntries2() {
HMapII m = new HMapII();
m.put(1, 5);
m.put(2, 2);
m.put(3, 3);
m.put(4, 3);
m.put(5, 1);
Entry[] e = m.getEntriesSortedByValue(2);
assertEquals(2, e.length);
assertEquals(1, e[0].getKey());
assertEquals(5, e[0].getValue());
assertEquals(3, e[1].getKey());
assertEquals(3, e[1].getValue());
}
@Test
public void testSortedEntries3() {
HMapII m = new HMapII();
m.put(1, 5);
m.put(2, 2);
Entry[] e = m.getEntriesSortedByValue(5);
assertEquals(2, e.length);
assertEquals(1, e[0].getKey());
assertEquals(5, e[0].getValue());
assertEquals(2, e[1].getKey());
assertEquals(2, e[1].getValue());
}
@Test
public void testSortedEntries4() {
HMapII m = new HMapII();
Entry[] e = m.getEntriesSortedByValue();
assertTrue(e == null);
}
@Test
public void testPut() {
HMapII m = new HMapII();
// When we put a value, we should get back the old value.
assertEquals(MapII.DEFAULT_VALUE, m.put(1, 5));
assertEquals(5, m.put(1, 6));
assertEquals(6, m.put(1, 2));
assertEquals(2, m.get(1));
}
@Test
public void testIncrement() {
HMapII m = new HMapII();
// When we put a value, we should get back the old value.
assertEquals(0, m.get(1));
m.increment(1);
assertEquals(1, m.get(1));
m.increment(1, 5);
m.increment(2, 0);
m.increment(3, 2);
assertEquals(6, m.get(1));
assertEquals(0, m.get(2));
assertEquals(2, m.get(3));
}
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(HMapIITest.class);
}
}