1 /*
2  * Copyright (C) 2017 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.cts.verifier.audio.peripheralprofile;
18 
19 public class ListsHelper {
isMatch(int[] a, int[] b)20     static public boolean isMatch(int[] a, int[] b) {
21         if (a.length != b.length) {
22             return false;
23         }
24 
25         int len = a.length;
26         for (int index = 0; index < len; index++) {
27             if (a[index] != b[index]) {
28                 return false;
29             }
30         }
31 
32         return true;
33     }
34 
hasValue(int[] a, int value)35     static private boolean hasValue(int[] a, int value) {
36         // one can't use indexOf on an int[], so just scan.
37         for (int aVal : a) {
38             if (aVal == value) {
39                 return true;
40             }
41         }
42 
43         return false;
44     }
45 
46     /**
47      * return true if the values in "a" are a subset of those in "b".
48      * Assume values are represented no more than once in each array.
49      */
isSubset(int[] a, int[] b)50     static public boolean isSubset(int[] a, int[] b) {
51         if (a.length > b.length) {
52             return false;
53         }
54 
55         for (int aVal : a) {
56             if (!hasValue(b, aVal)) {
57                 return false;
58             }
59         }
60 
61         return true;
62     }
63 }
64