TestPriorityQueue.javaAPI DocApache Lucene 1.92657Mon Feb 20 09:19:38 GMT 2006org.apache.lucene.util


public class TestPriorityQueue extends TestCase
Copyright 2004 The Apache Software Foundation 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 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.

Fields Summary
Constructors Summary
public TestPriorityQueue(String name)

Methods Summary
public voidtestClear()

	PriorityQueue pq = new IntegerQueue(3);
	pq.put(new Integer(2));
	pq.put(new Integer(3));
	pq.put(new Integer(1));
	assertEquals(3, pq.size());
	assertEquals(0, pq.size());
public voidtestFixedSize()

        PriorityQueue pq = new IntegerQueue(3);
        pq.insert(new Integer(2));
        pq.insert(new Integer(3));
        pq.insert(new Integer(1));
        pq.insert(new Integer(5));
        pq.insert(new Integer(7));
        pq.insert(new Integer(1));
        assertEquals(3, pq.size());
        assertEquals(3, ((Integer);
public voidtestPQ()

public static voidtestPQ(int count)

	PriorityQueue pq = new IntegerQueue(count);
	Random gen = new Random();
	int sum = 0, sum2 = 0;

	for (int i = 0; i < count; i++)
	    int next = gen.nextInt();
	    sum += next;
	    pq.put(new Integer(next));

	//      Date end = new Date();

	//      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
	//      System.out.println(" microseconds/put");

	//      start = new Date();

	int last = Integer.MIN_VALUE;
	for (int i = 0; i < count; i++)
	    Integer next = (Integer)pq.pop();
	    assertTrue(next.intValue() >= last);
	    last = next.intValue();
	    sum2 += last;

	assertEquals(sum, sum2);
	//      end = new Date();

	//      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
	//      System.out.println(" microseconds/pop");