Coverage Summary for Class: TestMapEntrySetGenerator (com.google.common.collect.testing)

1 /*
2  * Copyright (C) 2008 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.testing;
18 
19 import com.google.common.annotations.GwtCompatible;
20 import java.util.List;
21 import java.util.Map;
22 import java.util.Map.Entry;
23 import java.util.Set;
24 
25 /**
26  * Creates map entries using sample keys and sample values.
27  *
28  * @author Jesse Wilson
29  */
30 @GwtCompatible
31 public abstract class TestMapEntrySetGenerator<K, V> implements TestSetGenerator<Map.Entry<K, V>> {
32   private final SampleElements<K> keys;
33   private final SampleElements<V> values;
34 
35   protected TestMapEntrySetGenerator(SampleElements<K> keys, SampleElements<V> values) {
36     this.keys = keys;
37     this.values = values;
38   }
39 
40   @Override
41   public SampleElements<Entry<K, V>> samples() {
42     return SampleElements.mapEntries(keys, values);
43   }
44 
45   @Override
46   public Set<Entry<K, V>> create(Object... elements) {
47     Entry<K, V>[] entries = createArray(elements.length);
48     System.arraycopy(elements, 0, entries, 0, elements.length);
49     return createFromEntries(entries);
50   }
51 
52   public abstract Set<Entry<K, V>> createFromEntries(Entry<K, V>[] entries);
53 
54   @Override
55   @SuppressWarnings("unchecked") // generic arrays make typesafety sad
56   public Entry<K, V>[] createArray(int length) {
57     return new Entry[length];
58   }
59 
60   /** Returns the original element list, unchanged. */
61   @Override
62   public List<Entry<K, V>> order(List<Entry<K, V>> insertionOrder) {
63     return insertionOrder;
64   }
65 }