/*
    * 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 org.apache.commons.functor.BaseFunctorTest;
  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 TestCompositePredicate extends BaseFunctorTest {
  
      // Functor Testing Framework
      // ------------------------------------------------------------------------
  
      @Override
      protected Object makeFunctor() {
          return Composite.predicate(Constant.TRUE);
      }
  
      // Tests
      // ------------------------------------------------------------------------
  
      @Test
      public void testTest() throws Exception {
          assertTrue(Composite.predicate(Constant.TRUE).test(null));
          assertTrue(Composite.predicate(Constant.TRUE, Constant.of(3)).test("xyzzy"));
          assertFalse(Composite.predicate(Constant.FALSE, Constant.of(4)).test("xyzzy"));
      }
  
      @Test(expected = NullPointerException.class)
      public void testNullNotAllowed() throws Exception {
          new CompositePredicate<Object>(null);
      }
  
      @Test(expected = NullPointerException.class)
      public void testNullNotAllowed2() throws Exception {
          Composite.function(Constant.TRUE, null);
      }
  
      @Test
      public void testOf() throws Exception {
          CompositePredicate<Object> f = new CompositePredicate<Object>(Constant.TRUE);
          assertTrue(f.test(null));
          for (int i=0;i<10;i++) {
              f = f.of(Constant.FALSE);
              assertTrue(f.test(null));
          }
      }
  
      @Test
      public void testEquals() throws Exception {
          CompositePredicate<Object> f = new CompositePredicate<Object>(Constant.TRUE);
          assertEquals(f,f);
          CompositePredicate<Object> g = new CompositePredicate<Object>(Constant.TRUE);
          assertObjectsAreEqual(f,g);
  
          for (int i=0;i<3;i++) {
              f = f.of(Constant.of("x"));
              assertObjectsAreNotEqual(f,g);
              g = g.of(Constant.of("x"));
              assertObjectsAreEqual(f,g);
              f = f.of(Constant.of("y")).of(Constant.of("z"));
              assertObjectsAreNotEqual(f,g);
              g = g.of(Constant.of("y")).of(Constant.of("z"));
              assertObjectsAreEqual(f,g);
          }
  
          assertObjectsAreNotEqual(f,Constant.FALSE);
          assertTrue(!f.equals(null));
      }
  
  }