/*
    * 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.collections.primitives;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  /**
   * @version $Revision: 480451 $ $Date: 2006-11-29 02:45:08 -0500 (Wed, 29 Nov 2006) $
   * @author Rodney Waldhoff
   */
  public class TestIntCollections extends TestCase {
  
      //------------------------------------------------------------ Conventional
  
      public TestIntCollections(String testName) {
          super(testName);
      }
  
      public static Test suite() {
          return new TestSuite(TestIntCollections.class);
      }
  
      //---------------------------------------------------------------- Tests
  
      public void testSingletonIntListIterator() {
          IntListIterator iter = IntCollections.singletonIntListIterator(17);
          assertTrue(!iter.hasPrevious());        
          assertTrue(iter.hasNext());        
          assertEquals(17,iter.next());        
          assertTrue(iter.hasPrevious());        
          assertTrue(!iter.hasNext());        
          assertEquals(17,iter.previous());        
          try {
              iter.set(18);
              fail("Expected UnsupportedOperationException");
          } catch(UnsupportedOperationException e) {
              // expected
          }
      }
  
      public void testSingletonIntIterator() {
          IntIterator iter = IntCollections.singletonIntIterator(17);
          assertTrue(iter.hasNext());        
          assertEquals(17,iter.next());        
          assertTrue(!iter.hasNext());        
          try {
              iter.remove();
              fail("Expected UnsupportedOperationException");
          } catch(UnsupportedOperationException e) {
              // expected
          }
      }
  
      public void testSingletonIntList() {
          IntList list = IntCollections.singletonIntList(17);
          assertEquals(1,list.size());
          assertEquals(17,list.get(0));        
          try {
              list.add(18);
              fail("Expected UnsupportedOperationException");
          } catch(UnsupportedOperationException e) {
              // expected
          }
      }
  
      public void testUnmodifiableIntListNull() {
          try {
              IntCollections.unmodifiableIntList(null);
              fail("Expected NullPointerException");
          } catch(NullPointerException e) {
              // expected
          }
      }
  
      public void testEmptyIntList() {
          assertSame(IntCollections.EMPTY_INT_LIST,IntCollections.getEmptyIntList());
          assertTrue(IntCollections.EMPTY_INT_LIST.isEmpty());
          try {
              IntCollections.EMPTY_INT_LIST.add(1);
              fail("Expected UnsupportedOperationExcpetion");
          } catch(UnsupportedOperationException e) {
              // expected
          }
     }
 
     public void testUnmodifiableIntIteratorNull() {
         try {
             IntCollections.unmodifiableIntIterator(null);
             fail("Expected NullPointerException");
         } catch(NullPointerException e) {
             // expected
         }
     }
 
     public void testEmptyIntIterator() {
         assertSame(IntCollections.EMPTY_INT_ITERATOR,IntCollections.getEmptyIntIterator());
         assertTrue(! IntCollections.EMPTY_INT_ITERATOR.hasNext());
         try {
             IntCollections.EMPTY_INT_ITERATOR.remove();
             fail("Expected UnsupportedOperationExcpetion");
         } catch(UnsupportedOperationException e) {
             // expected
         }
     }
 
     public void testUnmodifiableIntListIteratorNull() {
         try {
             IntCollections.unmodifiableIntListIterator(null);
             fail("Expected NullPointerException");
         } catch(NullPointerException e) {
             // expected
         }
     }
 
     public void testEmptyIntListIterator() {
         assertSame(IntCollections.EMPTY_INT_LIST_ITERATOR,IntCollections.getEmptyIntListIterator());
         assertTrue(! IntCollections.EMPTY_INT_LIST_ITERATOR.hasNext());
         assertTrue(! IntCollections.EMPTY_INT_LIST_ITERATOR.hasPrevious());
         try {
             IntCollections.EMPTY_INT_LIST_ITERATOR.add(1);
             fail("Expected UnsupportedOperationExcpetion");
         } catch(UnsupportedOperationException e) {
             // expected
         }
     }
 }