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      1 /*
      2  * Copyright (C) 2007 The Guava Authors
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.common.collect;
     18 
     19 import com.google.common.annotations.GwtCompatible;
     20 import com.google.common.collect.testing.MapInterfaceTest;
     21 import com.google.common.collect.testing.SortedMapInterfaceTest;
     22 
     23 import java.util.SortedMap;
     24 import java.util.TreeMap;
     25 
     26 /**
     27  * Tests for {@link ForwardingSortedMap} using {@link MapInterfaceTest}.
     28  *
     29  * @author George van den Driessche
     30  */
     31 @GwtCompatible
     32 public class ForwardingSortedMapImplementsMapTest
     33     extends SortedMapInterfaceTest<String, Integer> {
     34 
     35   private static class SimpleForwardingSortedMap<K, V>
     36       extends ForwardingSortedMap<K, V> {
     37     final SortedMap<K, V> delegate;
     38     SimpleForwardingSortedMap(SortedMap<K, V> delegate) {
     39       this.delegate = delegate;
     40     }
     41     @Override protected SortedMap<K, V> delegate() {
     42       return delegate;
     43     }
     44   }
     45 
     46   public ForwardingSortedMapImplementsMapTest() {
     47     super(true, true, true, true, true);
     48   }
     49 
     50   @Override protected SortedMap<String, Integer> makeEmptyMap() {
     51     return new SimpleForwardingSortedMap<String, Integer>(
     52         new TreeMap<String, Integer>(Ordering.natural().nullsFirst()));
     53   }
     54 
     55   @Override protected SortedMap<String, Integer> makePopulatedMap() {
     56     final SortedMap<String, Integer> sortedMap = makeEmptyMap();
     57     sortedMap.put("one", 1);
     58     sortedMap.put("two", 2);
     59     sortedMap.put("three", 3);
     60     return sortedMap;
     61   }
     62 
     63   @Override protected String getKeyNotInPopulatedMap()
     64       throws UnsupportedOperationException {
     65     return "minus one";
     66   }
     67 
     68   @Override protected Integer getValueNotInPopulatedMap()
     69       throws UnsupportedOperationException {
     70     return -1;
     71   }
     72 
     73   @Override public void testContainsKey() {
     74     try {
     75       super.testContainsKey();
     76     } catch (ClassCastException tolerated) {
     77     }
     78   }
     79 
     80   @Override public void testEntrySetContainsEntryIncompatibleKey() {
     81     try {
     82       super.testEntrySetContainsEntryIncompatibleKey();
     83     } catch (ClassCastException tolerated) {
     84     }
     85   }
     86 
     87   @Override public void testEntrySetRemoveAllNullFromEmpty() {
     88     try {
     89       super.testEntrySetRemoveAllNullFromEmpty();
     90     } catch (RuntimeException tolerated) {
     91       // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
     92     }
     93   }
     94 
     95   @Override public void testEntrySetRetainAllNullFromEmpty() {
     96     try {
     97       super.testEntrySetRetainAllNullFromEmpty();
     98     } catch (RuntimeException tolerated) {
     99       // GWT's TreeMap.entrySet().retainAll(null) doesn't throws NPE.
    100     }
    101   }
    102 
    103   @Override public void testKeySetRemoveAllNullFromEmpty() {
    104     try {
    105       super.testKeySetRemoveAllNullFromEmpty();
    106     } catch (RuntimeException tolerated) {
    107       // GWT's TreeMap.keySet().removeAll(null) doesn't throws NPE.
    108     }
    109   }
    110 
    111   @Override public void testKeySetRetainAllNullFromEmpty() {
    112     try {
    113       super.testKeySetRetainAllNullFromEmpty();
    114     } catch (RuntimeException tolerated) {
    115       // GWT's TreeMap.keySet().retainAll(null) doesn't throws NPE.
    116     }
    117   }
    118 
    119   @Override public void testValuesRemoveAllNullFromEmpty() {
    120     try {
    121       super.testValuesRemoveAllNullFromEmpty();
    122     } catch (RuntimeException tolerated) {
    123       // GWT's TreeMap.values().removeAll(null) doesn't throws NPE.
    124     }
    125   }
    126 
    127   @Override public void testValuesRetainAllNullFromEmpty() {
    128     try {
    129       super.testValuesRemoveAllNullFromEmpty();
    130     } catch (RuntimeException tolerated) {
    131       // GWT's TreeMap.values().retainAll(null) doesn't throws NPE.
    132     }
    133   }
    134 }
    135