1 /*
2  * Copyright (C) 2012 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 junit.framework.TestCase;
20 
21 /**
22  * Tests for {@code ImmutableCollection}.
23  *
24  * @author Louis Wasserman
25  */
26 public class ImmutableCollectionTest extends TestCase {
27   public void testCapacityExpansion() {
28     assertEquals(1, ImmutableCollection.Builder.expandedCapacity(0, 1));
29     assertEquals(2, ImmutableCollection.Builder.expandedCapacity(0, 2));
30     assertEquals(2, ImmutableCollection.Builder.expandedCapacity(1, 2));
31     assertEquals(Integer.MAX_VALUE,
32         ImmutableCollection.Builder.expandedCapacity(0, Integer.MAX_VALUE));
33     assertEquals(Integer.MAX_VALUE,
34         ImmutableCollection.Builder.expandedCapacity(1, Integer.MAX_VALUE));
35     assertEquals(Integer.MAX_VALUE,
36         ImmutableCollection.Builder.expandedCapacity(Integer.MAX_VALUE - 1, Integer.MAX_VALUE));
37 
38     assertEquals(13, ImmutableCollection.Builder.expandedCapacity(8, 9));
39   }
40 }
41