/*
    * Copyright (C) 2007 The Guava Authors
    *
    * Licensed 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 com.google.common.collect;
  
  import com.google.common.annotations.GwtCompatible;
  import com.google.common.collect.testing.MapInterfaceTest;
  import com.google.common.collect.testing.SortedMapInterfaceTest;
  
  import java.util.SortedMap;
  import java.util.TreeMap;
  
  /**
   * Tests for {@link ForwardingSortedMap} using {@link MapInterfaceTest}.
   *
   * @author George van den Driessche
   */
  @GwtCompatible
  public class ForwardingSortedMapImplementsMapTest
      extends SortedMapInterfaceTest<String, Integer> {
  
    private static class SimpleForwardingSortedMap<K, V>
        extends ForwardingSortedMap<K, V> {
      final SortedMap<K, V> delegate;
      SimpleForwardingSortedMap(SortedMap<K, V> delegate) {
        this.delegate = delegate;
      }
      @Override protected SortedMap<K, V> delegate() {
        return delegate;
      }
    }
  
    public ForwardingSortedMapImplementsMapTest() {
      super(true, true, true, true, true);
    }
  
    @Override protected SortedMap<String, Integer> makeEmptyMap() {
      return new SimpleForwardingSortedMap<String, Integer>(
          new TreeMap<String, Integer>(Ordering.natural().nullsFirst()));
    }
  
    @Override protected SortedMap<String, Integer> makePopulatedMap() {
      final SortedMap<String, Integer> sortedMap = makeEmptyMap();
      sortedMap.put("one", 1);
      sortedMap.put("two", 2);
      sortedMap.put("three", 3);
      return sortedMap;
    }
  
    @Override protected String getKeyNotInPopulatedMap()
        throws UnsupportedOperationException {
      return "minus one";
    }
  
    @Override protected Integer getValueNotInPopulatedMap()
        throws UnsupportedOperationException {
      return -1;
    }
  
    @Override public void testContainsKey() {
      try {
        super.testContainsKey();
      } catch (ClassCastException tolerated) {
      }
    }
  
    @Override public void testEntrySetContainsEntryIncompatibleKey() {
      try {
        super.testEntrySetContainsEntryIncompatibleKey();
      } catch (ClassCastException tolerated) {
      }
    }
    
    @Override public void testEntrySetRemoveAllNullFromEmpty() {
      try {
        super.testEntrySetRemoveAllNullFromEmpty();
      } catch (RuntimeException tolerated) {
        // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
      }
    }
  
    @Override public void testEntrySetRetainAllNullFromEmpty() {
      try {
        super.testEntrySetRetainAllNullFromEmpty();
      } catch (RuntimeException tolerated) {
        // GWT's TreeMap.entrySet().retainAll(null) doesn't throws NPE.
     }
   }
 
   @Override public void testKeySetRemoveAllNullFromEmpty() {
     try {
       super.testKeySetRemoveAllNullFromEmpty();
     } catch (RuntimeException tolerated) {
       // GWT's TreeMap.keySet().removeAll(null) doesn't throws NPE.
     }
   }
 
   @Override public void testKeySetRetainAllNullFromEmpty() {
     try {
       super.testKeySetRetainAllNullFromEmpty();
     } catch (RuntimeException tolerated) {
       // GWT's TreeMap.keySet().retainAll(null) doesn't throws NPE.
     }
   }
 
   @Override public void testValuesRemoveAllNullFromEmpty() {
     try {
       super.testValuesRemoveAllNullFromEmpty();
     } catch (RuntimeException tolerated) {
       // GWT's TreeMap.values().removeAll(null) doesn't throws NPE.
     }
   }
 
   @Override public void testValuesRetainAllNullFromEmpty() {
     try {
       super.testValuesRemoveAllNullFromEmpty();
     } catch (RuntimeException tolerated) {
       // GWT's TreeMap.values().retainAll(null) doesn't throws NPE.
     }
   }
 }