/*
    * 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 java.util.Iterator;
  import java.util.NoSuchElementException;
  
  import org.apache.commons.collections.iterators.AbstractTestIterator;
  import org.apache.commons.collections.primitives.adapters.DoubleIteratorIterator;
  
  /**
   * @version $Revision: 480451 $ $Date: 2006-11-29 02:45:08 -0500 (Wed, 29 Nov 2006) $
   * @author Rodney Waldhoff
   */
  public abstract class TestDoubleIterator extends AbstractTestIterator {
  
      // conventional
      // ------------------------------------------------------------------------
  
      public TestDoubleIterator(String testName) {
          super(testName);
      }
  
      // collections testing framework
      // ------------------------------------------------------------------------
  
      public Iterator makeEmptyIterator() {
          return DoubleIteratorIterator.wrap(makeEmptyDoubleIterator());
      }
  
      public Iterator makeFullIterator() {
          return DoubleIteratorIterator.wrap(makeFullDoubleIterator());
      }
  
  
      protected abstract DoubleIterator makeEmptyDoubleIterator();
      protected abstract DoubleIterator makeFullDoubleIterator();
      protected abstract double[] getFullElements();
  
      // tests
      // ------------------------------------------------------------------------
      
      public void testNextHasNextRemove() {
          double[] elements = getFullElements();
          DoubleIterator iter = makeFullDoubleIterator();
          for(int i=0;i<elements.length;i++) {
              assertTrue(iter.hasNext());
              assertEquals(elements[i],iter.next(),0f);
              if(supportsRemove()) {
                  iter.remove();
              }
          }        
          assertTrue(! iter.hasNext() );
      }
  
      public void testEmptyDoubleIterator() {
          assertTrue( ! makeEmptyDoubleIterator().hasNext() );
          try {
              makeEmptyDoubleIterator().next();
              fail("Expected NoSuchElementException");
          } catch(NoSuchElementException e) {
              // expected
          }
          if(supportsRemove()) {
              try {
                  makeEmptyDoubleIterator().remove();
                  fail("Expected IllegalStateException");
              } catch(IllegalStateException e) {
                  // expected
              }
          }        
      }
  
      public void testRemoveBeforeNext() {
          if(supportsRemove()) {
              try {
                  makeFullDoubleIterator().remove();
                  fail("Expected IllegalStateException");
              } catch(IllegalStateException e) {
                  // expected
              }
          }        
      }
  
      public void testRemoveAfterRemove() {
         if(supportsRemove()) {
             DoubleIterator iter = makeFullDoubleIterator();
             iter.next();
             iter.remove();
             try {
                 iter.remove();
                 fail("Expected IllegalStateException");
             } catch(IllegalStateException e) {
                 // expected
             }
         }        
     }
 }