content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.ambari.server.controller.internal;
  
  import java.util.Map;
  
  import org.apache.ambari.server.controller.predicate.AndPredicate;
  import org.apache.ambari.server.controller.predicate.CategoryIsEmptyPredicate;
  import org.apache.ambari.server.controller.predicate.OrPredicate;
  import org.apache.ambari.server.controller.spi.Predicate;
  import org.apache.ambari.server.controller.utilities.PredicateBuilder;
  import org.apache.ambari.server.controller.utilities.PredicateHelper;
  import org.apache.ambari.server.controller.utilities.PropertyHelper;
  import org.junit.Test;
  
  import junit.framework.Assert;
  
  /**
   * Tests for the property predicate visitor.
   */
  public class PropertyPredicateVisitorTest {
  
    private static final String PROPERTY_A = PropertyHelper.getPropertyId("category", "A");
    private static final String PROPERTY_B = PropertyHelper.getPropertyId("category", "B");
  
    private static final Predicate PREDICATE_1 = new PredicateBuilder().property(PROPERTY_A).equals("Monkey").toPredicate();
    private static final Predicate PREDICATE_2 = new PredicateBuilder().property(PROPERTY_B).equals("Runner").toPredicate();
    private static final Predicate PREDICATE_3 = new AndPredicate(PREDICATE_1, PREDICATE_2);
    private static final Predicate PREDICATE_4 = new OrPredicate(PREDICATE_1, PREDICATE_2);
    private static final Predicate PREDICATE_5 = new CategoryIsEmptyPredicate("cat1");
  
    @Test
    public void testVisit() {
      PropertyPredicateVisitor visitor = new PropertyPredicateVisitor();
      PredicateHelper.visit(PREDICATE_1, visitor);
      Map<String, Object> properties = visitor.getProperties();
      Assert.assertEquals(1, properties.size());
      Assert.assertEquals("Monkey", properties.get(PROPERTY_A));
  
      visitor = new PropertyPredicateVisitor();
      PredicateHelper.visit(PREDICATE_3, visitor);
      properties = visitor.getProperties();
      Assert.assertEquals(2, properties.size());
      Assert.assertEquals("Monkey", properties.get(PROPERTY_A));
      Assert.assertEquals("Runner", properties.get(PROPERTY_B));
  
      visitor = new PropertyPredicateVisitor();
      PredicateHelper.visit(PREDICATE_4, visitor);
      properties = visitor.getProperties();
      Assert.assertEquals(2, properties.size());
      Assert.assertEquals("Monkey", properties.get(PROPERTY_A));
      Assert.assertEquals("Runner", properties.get(PROPERTY_B));
  
      visitor = new PropertyPredicateVisitor();
      PredicateHelper.visit(PREDICATE_5, visitor);
      properties = visitor.getProperties();
      Assert.assertTrue(properties.isEmpty());
    }
  }
  