1 /*
2  * Copyright (C) 2023 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.server.contentprotection;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.ArgumentMatchers.any;
22 import static org.mockito.ArgumentMatchers.eq;
23 import static org.mockito.Mockito.when;
24 
25 import android.Manifest.permission;
26 import android.content.pm.ApplicationInfo;
27 import android.content.pm.PackageInfo;
28 import android.content.pm.PackageManager;
29 import android.content.pm.PackageManager.NameNotFoundException;
30 import android.content.pm.PackageManager.PackageInfoFlags;
31 import android.testing.TestableContext;
32 
33 import androidx.test.core.app.ApplicationProvider;
34 import androidx.test.ext.junit.runners.AndroidJUnit4;
35 import androidx.test.filters.SmallTest;
36 
37 import org.junit.Before;
38 import org.junit.Rule;
39 import org.junit.Test;
40 import org.junit.runner.RunWith;
41 import org.mockito.Mock;
42 import org.mockito.junit.MockitoJUnit;
43 import org.mockito.junit.MockitoRule;
44 
45 /**
46  * Test for {@link ContentProtectionPackageManager}.
47  *
48  * <p>Run with: {@code atest
49  * FrameworksServicesTests:com.android.server.contentprotection.ContentProtectionPackageManagerTest}
50  */
51 @RunWith(AndroidJUnit4.class)
52 @SmallTest
53 public class ContentProtectionPackageManagerTest {
54     private static final String PACKAGE_NAME = "PACKAGE_NAME";
55 
56     private static final PackageInfo EMPTY_PACKAGE_INFO = new PackageInfo();
57 
58     private static final PackageInfo SYSTEM_APP_PACKAGE_INFO = createSystemAppPackageInfo();
59 
60     private static final PackageInfo UPDATED_SYSTEM_APP_PACKAGE_INFO =
61             createUpdatedSystemAppPackageInfo();
62 
63     @Rule public final MockitoRule mMockitoRule = MockitoJUnit.rule();
64 
65     @Rule
66     public final TestableContext mContext =
67             new TestableContext(ApplicationProvider.getApplicationContext());
68 
69     @Mock private PackageManager mMockPackageManager;
70 
71     private ContentProtectionPackageManager mContentProtectionPackageManager;
72 
73     @Before
setup()74     public void setup() {
75         mContext.setMockPackageManager(mMockPackageManager);
76         mContentProtectionPackageManager = new ContentProtectionPackageManager(mContext);
77     }
78 
79     @Test
getPackageInfo_found()80     public void getPackageInfo_found() throws Exception {
81         PackageInfo expected = createPackageInfo(/* flags= */ 0);
82         when(mMockPackageManager.getPackageInfo(eq(PACKAGE_NAME), any(PackageInfoFlags.class)))
83                 .thenReturn(expected);
84 
85         PackageInfo actual = mContentProtectionPackageManager.getPackageInfo(PACKAGE_NAME);
86 
87         assertThat(actual).isEqualTo(expected);
88     }
89 
90     @Test
getPackageInfo_notFound()91     public void getPackageInfo_notFound() throws Exception {
92         when(mMockPackageManager.getPackageInfo(eq(PACKAGE_NAME), any(PackageInfoFlags.class)))
93                 .thenThrow(new NameNotFoundException());
94 
95         PackageInfo actual = mContentProtectionPackageManager.getPackageInfo(PACKAGE_NAME);
96 
97         assertThat(actual).isNull();
98     }
99 
100     @Test
getPackageInfo_null()101     public void getPackageInfo_null() {
102         PackageInfo actual = mContentProtectionPackageManager.getPackageInfo(PACKAGE_NAME);
103 
104         assertThat(actual).isNull();
105     }
106 
107     @Test
isSystemApp_true()108     public void isSystemApp_true() {
109         boolean actual = mContentProtectionPackageManager.isSystemApp(SYSTEM_APP_PACKAGE_INFO);
110 
111         assertThat(actual).isTrue();
112     }
113 
114     @Test
isSystemApp_false()115     public void isSystemApp_false() {
116         boolean actual =
117                 mContentProtectionPackageManager.isSystemApp(UPDATED_SYSTEM_APP_PACKAGE_INFO);
118 
119         assertThat(actual).isFalse();
120     }
121 
122     @Test
isSystemApp_noApplicationInfo()123     public void isSystemApp_noApplicationInfo() {
124         boolean actual = mContentProtectionPackageManager.isSystemApp(EMPTY_PACKAGE_INFO);
125 
126         assertThat(actual).isFalse();
127     }
128 
129     @Test
isUpdatedSystemApp_true()130     public void isUpdatedSystemApp_true() {
131         boolean actual =
132                 mContentProtectionPackageManager.isUpdatedSystemApp(
133                         UPDATED_SYSTEM_APP_PACKAGE_INFO);
134 
135         assertThat(actual).isTrue();
136     }
137 
138     @Test
isUpdatedSystemApp_false()139     public void isUpdatedSystemApp_false() {
140         boolean actual =
141                 mContentProtectionPackageManager.isUpdatedSystemApp(SYSTEM_APP_PACKAGE_INFO);
142 
143         assertThat(actual).isFalse();
144     }
145 
146     @Test
isUpdatedSystemApp_noApplicationInfo()147     public void isUpdatedSystemApp_noApplicationInfo() {
148         boolean actual = mContentProtectionPackageManager.isUpdatedSystemApp(EMPTY_PACKAGE_INFO);
149 
150         assertThat(actual).isFalse();
151     }
152 
153     @Test
hasRequestedInternetPermissions_true()154     public void hasRequestedInternetPermissions_true() {
155         PackageInfo packageInfo = createPackageInfo(new String[] {permission.INTERNET});
156 
157         boolean actual =
158                 mContentProtectionPackageManager.hasRequestedInternetPermissions(packageInfo);
159 
160         assertThat(actual).isTrue();
161     }
162 
163     @Test
hasRequestedInternetPermissions_false()164     public void hasRequestedInternetPermissions_false() {
165         PackageInfo packageInfo = createPackageInfo(new String[] {permission.ACCESS_FINE_LOCATION});
166 
167         boolean actual =
168                 mContentProtectionPackageManager.hasRequestedInternetPermissions(packageInfo);
169 
170         assertThat(actual).isFalse();
171     }
172 
173     @Test
hasRequestedInternetPermissions_noRequestedPermissions()174     public void hasRequestedInternetPermissions_noRequestedPermissions() {
175         boolean actual =
176                 mContentProtectionPackageManager.hasRequestedInternetPermissions(
177                         EMPTY_PACKAGE_INFO);
178 
179         assertThat(actual).isFalse();
180     }
181 
createSystemAppPackageInfo()182     private static PackageInfo createSystemAppPackageInfo() {
183         return createPackageInfo(ApplicationInfo.FLAG_SYSTEM);
184     }
185 
createUpdatedSystemAppPackageInfo()186     private static PackageInfo createUpdatedSystemAppPackageInfo() {
187         return createPackageInfo(ApplicationInfo.FLAG_UPDATED_SYSTEM_APP);
188     }
189 
createPackageInfo(int flags)190     private static PackageInfo createPackageInfo(int flags) {
191         return createPackageInfo(flags, /* requestedPermissions= */ new String[0]);
192     }
193 
createPackageInfo(String[] requestedPermissions)194     private static PackageInfo createPackageInfo(String[] requestedPermissions) {
195         return createPackageInfo(/* flags= */ 0, requestedPermissions);
196     }
197 
createPackageInfo(int flags, String[] requestedPermissions)198     private static PackageInfo createPackageInfo(int flags, String[] requestedPermissions) {
199         PackageInfo packageInfo = new PackageInfo();
200         packageInfo.packageName = PACKAGE_NAME;
201         packageInfo.applicationInfo = new ApplicationInfo();
202         packageInfo.applicationInfo.packageName = PACKAGE_NAME;
203         packageInfo.applicationInfo.flags = flags;
204         packageInfo.requestedPermissions = requestedPermissions;
205         return packageInfo;
206     }
207 }
208