/*
    * 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.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  import java.util.Arrays;
  
  import org.apache.commons.functor.BaseFunctorTest;
  import org.apache.commons.functor.NullaryPredicate;
  import org.apache.commons.functor.core.Constant;
  import org.junit.Test;
  
  /**
   * @version $Revision: 1365329 $ $Date: 2012-07-24 19:34:23 -0300 (Tue, 24 Jul 2012) $
   */
  public class TestNullaryOr extends BaseFunctorTest {
  
      // Functor Testing Framework
      // ------------------------------------------------------------------------
  
      @Override
      protected Object makeFunctor() {
          return new NullaryOr(Constant.FALSE, Constant.TRUE);
      }
  
      // Tests
      // ------------------------------------------------------------------------
  
      @Test
      public void testConstructors() {
          NullaryOr or = new NullaryOr(Constant.FALSE);
          assertEquals(Boolean.FALSE, or.test());
          NullaryOr or2 = new NullaryOr((Iterable<NullaryPredicate>)Arrays.asList((NullaryPredicate)Constant.truePredicate()));
          assertEquals(Boolean.TRUE, or2.test());
          NullaryOr or3 = new NullaryOr((NullaryPredicate)null);
          assertEquals(Boolean.FALSE, or3.test());
          NullaryOr or4 = new NullaryOr((Iterable<NullaryPredicate>)null);
          assertEquals(Boolean.FALSE, or4.test());
      }
  
      @Test
      public void testTrue() throws Exception {
          assertTrue((new NullaryOr(Constant.TRUE)).test());
          assertTrue((new NullaryOr(Constant.FALSE, Constant.TRUE)).test());
          assertTrue((new NullaryOr(Constant.FALSE, Constant.FALSE, Constant.TRUE)).test());
  
          NullaryOr p = new NullaryOr(Constant.TRUE);
          assertTrue(p.test());
          for (int i=0;i<10;i++) {
              p.or(Constant.of(i%2==0));
              assertTrue(p.test());
          }
  
          NullaryOr q = new NullaryOr(Constant.TRUE);
          assertTrue(q.test());
          for (int i=0;i<10;i++) {
              q.or(Constant.of(i%2==0));
              assertTrue(q.test());
          }
  
          NullaryOr r = new NullaryOr(p,q);
          assertTrue(r.test());
      }
  
      @Test
      public void testFalse() throws Exception {
          assertFalse(new NullaryOr().test());
          assertFalse(new NullaryOr(Constant.FALSE).test());
          assertFalse(new NullaryOr(Constant.FALSE,Constant.FALSE).test());
          assertFalse(new NullaryOr(Constant.FALSE,Constant.FALSE,Constant.FALSE).test());
  
          NullaryOr p = new NullaryOr(Constant.FALSE);
          assertFalse(p.test());
          for (int i=0;i<10;i++) {
              p.or(Constant.FALSE);
              assertFalse(p.test());
          }
  
          NullaryOr q = new NullaryOr(Constant.FALSE);
          assertFalse(q.test());
          for (int i=0;i<10;i++) {
              q.or(Constant.FALSE);
             assertFalse(q.test());
         }
 
         NullaryOr r = new NullaryOr(p,q);
         assertTrue(!r.test());
     }
 
     @Test
     public void testDuplicateAdd() throws Exception {
         NullaryPredicate p = Constant.TRUE;
         NullaryOr q = new NullaryOr(p,p);
         assertTrue(q.test());
         for (int i=0;i<10;i++) {
             q.or(p);
             assertTrue(q.test());
         }
     }
 
     @Test
     public void testEquals() throws Exception {
         NullaryOr p = new NullaryOr();
         assertEquals(p,p);
 
         NullaryOr q = new NullaryOr();
         assertObjectsAreEqual(p,q);
 
         NullaryAnd r = new NullaryAnd();
         assertObjectsAreNotEqual(p,r);
 
         for (int i=0;i<3;i++) {
             p.or(Constant.TRUE);
             assertObjectsAreNotEqual(p,q);
             q.or(Constant.TRUE);
             assertObjectsAreEqual(p,q);
             r.and(Constant.TRUE);
             assertObjectsAreNotEqual(p,r);
 
             p.or(new NullaryOr(Constant.TRUE,Constant.FALSE));
             assertObjectsAreNotEqual(p,q);
             q.or(new NullaryOr(Constant.TRUE,Constant.FALSE));
             assertObjectsAreEqual(p,q);
             r.and(new NullaryOr(Constant.TRUE,Constant.FALSE));
             assertObjectsAreNotEqual(p,r);
         }
 
         assertObjectsAreNotEqual(p,Constant.TRUE);
 
         assertObjectsAreNotEqual(p,new NullaryOr((Iterable<NullaryPredicate>)null));
         assertObjectsAreNotEqual(p,new NullaryOr((NullaryPredicate[])null));
         assertObjectsAreNotEqual(p,new NullaryOr((NullaryPredicate)null));
 
         assertTrue(!p.equals(null));
     }
 
 }