content: /**
   * Copyright (c) 2019 Siemens AG
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1) Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2) Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * 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 HOLDER 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 at.ac.tuwien.kr.alpha.core.solver.heuristics;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.Arrays;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import at.ac.tuwien.kr.alpha.api.config.Heuristic;
  import at.ac.tuwien.kr.alpha.core.common.AtomStore;
  import at.ac.tuwien.kr.alpha.core.common.AtomStoreImpl;
  import at.ac.tuwien.kr.alpha.core.solver.ChoiceManager;
  import at.ac.tuwien.kr.alpha.core.solver.NoGoodStore;
  import at.ac.tuwien.kr.alpha.core.solver.NoGoodStoreAlphaRoaming;
  import at.ac.tuwien.kr.alpha.core.solver.TrailAssignment;
  import at.ac.tuwien.kr.alpha.core.solver.WritableAssignment;
  
  /**
   * Tests {@link BranchingHeuristicFactory}
   */
  public class BranchingHeuristicFactoryTest {
  
  	private final boolean debugInternalChecks = true;
  	private ChoiceManager choiceManager;
  
  	@BeforeEach
  	public void setUp() {
  		AtomStore atomStore = new AtomStoreImpl();
  		WritableAssignment assignment = new TrailAssignment(atomStore);
  		NoGoodStore store = new NoGoodStoreAlphaRoaming(assignment, debugInternalChecks);
  		this.choiceManager = new ChoiceManager(assignment, store);
  	}
  
  	@Test
  	public void testChainedHeuristicWithReplay() {
  		HeuristicsConfigurationBuilder builder = new HeuristicsConfigurationBuilder().setHeuristic(Heuristic.VSIDS).setReplayChoices(Arrays.asList(1, 2, 3));
  		BranchingHeuristic branchingHeuristic = BranchingHeuristicFactory.getInstance(builder.build(), null, null, choiceManager, null);
  		assertEquals(ChainedBranchingHeuristics.class, branchingHeuristic.getClass());
  		assertTrue(branchingHeuristic instanceof ChainedBranchingHeuristics, "Unexpected type of branchingHeuristic: " + branchingHeuristic.getClass());
  		assertEquals(ChainedBranchingHeuristics.class.getSimpleName() + "[" + ReplayHeuristic.class.getSimpleName() + ", " + VSIDS.class.getSimpleName() + "]", branchingHeuristic.toString());
  	}
  
  	@Test
  	public void testChainedHeuristicWithoutReplay() {
  		HeuristicsConfigurationBuilder builder = new HeuristicsConfigurationBuilder().setHeuristic(Heuristic.VSIDS).setReplayChoices(null);
  		BranchingHeuristic branchingHeuristic = BranchingHeuristicFactory.getInstance(builder.build(), null, null, choiceManager, null);
  		assertEquals(VSIDS.class, branchingHeuristic.getClass());
  	}
  
  }
  