1 /*
2  * Copyright (C) 2018 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.phone.ecc;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import androidx.test.InstrumentationRegistry;
22 import androidx.test.runner.AndroidJUnit4;
23 
24 import com.android.TelephonyTestBase;
25 import com.android.phone.ecc.nano.ProtobufEccData;
26 
27 import org.junit.Test;
28 import org.junit.runner.RunWith;
29 
30 import java.io.BufferedInputStream;
31 import java.io.ByteArrayOutputStream;
32 import java.io.IOException;
33 import java.io.InputStream;
34 import java.util.HashSet;
35 import java.util.Locale;
36 import java.util.zip.GZIPInputStream;
37 
38 /**
39  * Unit tests for eccdata.
40  */
41 @RunWith(AndroidJUnit4.class)
42 public class EccDataTest extends TelephonyTestBase {
43     @Test
testEccDataContent()44     public void testEccDataContent() throws IOException {
45         InputStream eccData = new GZIPInputStream(new BufferedInputStream(
46                 InstrumentationRegistry.getTargetContext().getAssets().open("eccdata")));
47         ProtobufEccData.AllInfo allEccMessages = ProtobufEccData.AllInfo.parseFrom(
48                 readInputStreamToByteArray(eccData));
49         eccData.close();
50 
51         HashSet loadedIsos = new HashSet(300);
52         HashSet loadedNumbers = new HashSet(5);
53         HashSet loadedMncs = new HashSet(5);
54 
55         for (ProtobufEccData.CountryInfo countryInfo : allEccMessages.countries) {
56             assertThat(countryInfo.isoCode).isNotEmpty();
57             assertThat(countryInfo.isoCode).isEqualTo(countryInfo.isoCode.toUpperCase(
58                     Locale.ROOT).trim());
59             assertThat(loadedIsos.contains(countryInfo.isoCode)).isFalse();
60             loadedIsos.add(countryInfo.isoCode);
61 
62             loadedNumbers.clear();
63             for (ProtobufEccData.EccInfo eccInfo : countryInfo.eccs) {
64                 assertThat(eccInfo.phoneNumber).isNotEmpty();
65                 assertThat(eccInfo.phoneNumber).isEqualTo(eccInfo.phoneNumber.trim());
66                 assertThat(loadedNumbers.contains(eccInfo.phoneNumber)).isFalse();
67                 assertThat(eccInfo.types).isNotEmpty();
68                 loadedNumbers.add(eccInfo.phoneNumber);
69                 if (eccInfo.routing == ProtobufEccData.EccInfo.Routing.NORMAL) {
70                     loadedMncs.clear();
71                     for (String mnc : eccInfo.normalRoutingMncs) {
72                         assertThat(mnc).isNotEmpty();
73                         assertThat(mnc).isEqualTo(mnc.trim());
74                         assertThat(loadedMncs.contains(mnc)).isFalse();
75                         assertThat(mnc.length()).isGreaterThan(1);
76                         assertThat(mnc.length()).isLessThan(4);
77                         loadedMncs.add(mnc);
78                     }
79                 }
80             }
81         }
82     }
83 
84     /**
85      * Util function to convert inputStream to byte array before parsing proto data.
86      */
readInputStreamToByteArray(InputStream inputStream)87     private static byte[] readInputStreamToByteArray(InputStream inputStream) throws IOException {
88         ByteArrayOutputStream buffer = new ByteArrayOutputStream();
89         int nRead;
90         byte[] data = new byte[16 * 1024]; // Read 16k chunks
91         while ((nRead = inputStream.read(data, 0, data.length)) != -1) {
92             buffer.write(data, 0, nRead);
93         }
94         buffer.flush();
95         return buffer.toByteArray();
96     }
97 }
98