/*
    * 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.core.composite;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertTrue;
  
  import org.apache.commons.functor.BaseFunctorTest;
  import org.apache.commons.functor.Predicate;
  import org.apache.commons.functor.core.Constant;
  import org.junit.Test;
  
  /**
   * @version $Revision: 1541658 $ $Date: 2013-11-13 19:54:05 +0100 (Mi, 13 Nov 2013) $
   */
  public class TestNot extends BaseFunctorTest {
  
      // Functor Testing Framework
      // ------------------------------------------------------------------------
  
      @Override
      protected Object makeFunctor() {
          return new Not<Object>(Constant.TRUE);
      }
  
      // Tests
      // ------------------------------------------------------------------------
  
      @Test
      public void testTest() throws Exception {
          Predicate<Object> truePred = new Not<Object>(Constant.FALSE);
          assertTrue(truePred.test(null));
          assertTrue(truePred.test("xyzzy"));
          assertTrue(truePred.test(Integer.valueOf(3)));
      }
  
      @Test
      public void testEquals() throws Exception {
          Not<Object> p = new Not<Object>(Constant.TRUE);
          assertEquals(p, p);
          assertObjectsAreEqual(p, new Not<Object>(Constant.TRUE));
          assertObjectsAreEqual(p, Not.not(Constant.TRUE));
          assertObjectsAreNotEqual(p, new Not<Object>(Constant.FALSE));
          assertObjectsAreNotEqual(p, Constant.TRUE);
          assertTrue(!p.equals(null));
      }
  
      @Test
      public void testNotNull() throws Exception {
          assertNull(Not.not(null));
      }
  
      @Test
      public void testNotNotNull() throws Exception {
          assertNotNull(Not.not(Constant.truePredicate()));
      }
  }