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
17package com.google.common.collect;
18
19import junit.framework.TestCase;
20
21/**
22 * Tests for {@code ImmutableCollection}.
23 *
24 * @author Louis Wasserman
25 */
26public 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