/*
* Copyright (c) 2010-2012 Grid Dynamics Consulting Services, Inc, All Rights Reserved
* http://www.griddynamics.com
*
* This library is free software; you can redistribute it and/or modify it under the terms of
* the Apache License; either
* version 2.0 of the License, or any later version.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.griddynamics.jagger.invoker;
import com.google.common.collect.ImmutableList;
import com.griddynamics.jagger.util.Pair;
import org.testng.annotations.Test;
import java.util.Iterator;
import java.util.List;
import static org.testng.Assert.assertEquals;
public class OneByOneLoadBalancerTest {
@Test
public void shouldProvidePairs() throws Exception {
List<Integer> queries = ImmutableList.of(1, 2, 3);
List<Integer> endpoints = ImmutableList.of(1, 2);
OneByOneLoadBalancer<Integer, Integer> balancer = new OneByOneLoadBalancer<Integer, Integer>(queries, endpoints);
Iterator<Pair<Integer,Integer>> chunks = balancer.provide();
assertEquals(chunks.next(), Pair.of(1, 1));
assertEquals(chunks.next(), Pair.of(1, 2));
assertEquals(chunks.next(), Pair.of(2, 1));
assertEquals(chunks.next(), Pair.of(2, 2));
assertEquals(chunks.next(), Pair.of(3, 1));
assertEquals(chunks.next(), Pair.of(3, 2));
}
}