/*
    * 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.commons.functor.range;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import org.junit.Test;
  
  /**
   * Tests for endpoint.
   *
   * @since 1.0
   * @version $Revision: $ $Date: $
   */
  public class TestEndpoint {
  
      private final Endpoint<Integer> openEndpoint = new Endpoint<Integer>(1, BoundType.OPEN);
      private final Endpoint<Integer> closedEndpoint = new Endpoint<Integer>(2, BoundType.CLOSED);
  
      @Test
      public void testValue() {
          assertEquals(Integer.valueOf(1), openEndpoint.getValue());
          assertEquals(Integer.valueOf(2), closedEndpoint.getValue());
      }
  
      @Test
      public void testBoundType() {
          assertEquals(BoundType.OPEN, openEndpoint.getBoundType());
          assertEquals(BoundType.CLOSED, closedEndpoint.getBoundType());
      }
  
      @Test
      public void testToString() {
          assertEquals("Endpoint<1, OPEN>", openEndpoint.toString());
          assertEquals("Endpoint<2, CLOSED>", closedEndpoint.toString());
          assertEquals("(1", openEndpoint.toLeftString());
          assertEquals("[2", closedEndpoint.toLeftString());
          assertEquals("1)", openEndpoint.toRightString());
          assertEquals("2]", closedEndpoint.toRightString());
      }
  
      @Test
      public void testEquals()
          throws Exception {
          // equals basic properties
          Endpoint<Integer> endpoint = new Endpoint<Integer>(1, BoundType.OPEN);
          assertEquals("equals must be reflexive", endpoint, endpoint);
          assertEquals("hashCode must be reflexive", endpoint.hashCode(),
                       endpoint.hashCode());
          assertTrue(!endpoint.equals(null)); // should be able to compare to null
  
          Object endpoint2 = new Endpoint<Integer>(1, BoundType.OPEN);
          if (endpoint.equals(endpoint2)) {
              assertEquals("equals implies hash equals", endpoint.hashCode(),
                           endpoint2.hashCode());
              assertEquals("equals must be symmetric", endpoint2, endpoint);
          } else {
              assertTrue("equals must be symmetric", !endpoint2.equals(endpoint));
          }
  
          Object differentEndpoint = new Endpoint<Integer>(1, BoundType.CLOSED);
          assertTrue(!differentEndpoint.equals(endpoint));
          assertTrue(differentEndpoint.hashCode() != endpoint.hashCode());
      }
  
  }