1 /*
2  * Copyright (C) 2010 The Android Open Source Project
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.android.internal.util;
18 
19 import android.test.AndroidTestCase;
20 import android.test.suitebuilder.annotation.SmallTest;
21 
22 @SmallTest
23 public final class StringPoolTest extends AndroidTestCase {
24 
testStringPool()25     public void testStringPool() {
26         StringPool stringPool = new StringPool();
27         String bcd = stringPool.get(new char[] { 'a', 'b', 'c', 'd', 'e' }, 1, 3);
28         assertEquals("bcd", bcd);
29         assertSame(bcd, stringPool.get(new char[] { 'a', 'b', 'c', 'd', 'e' }, 1, 3));
30     }
31 
testHashCollision()32     public void testHashCollision() {
33         StringPool stringPool = new StringPool();
34         char[] a = { (char) 1, (char) 0 };
35         char[] b = { (char) 0, (char) 31 };
36         assertEquals(new String(a).hashCode(), new String(b).hashCode());
37 
38         String aString = stringPool.get(a, 0, 2);
39         assertEquals(new String(a), aString);
40         String bString = stringPool.get(b, 0, 2);
41         assertEquals(new String(b), bString);
42         assertSame(bString, stringPool.get(b, 0, 2));
43         assertNotSame(aString, stringPool.get(a, 0, 2));
44     }
45 }
46