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      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