| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.os; |
| |
| import static android.os.Environment.HAS_ANDROID; |
| import static android.os.Environment.HAS_DCIM; |
| import static android.os.Environment.HAS_DOWNLOADS; |
| import static android.os.Environment.HAS_OTHER; |
| import static android.os.Environment.classifyExternalStorageDirectory; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import android.app.AppOpsManager; |
| import android.content.Context; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.File; |
| |
| @RunWith(AndroidJUnit4.class) |
| public class EnvironmentTest { |
| private File dir; |
| |
| private static Context getContext() { |
| return InstrumentationRegistry.getContext(); |
| } |
| |
| /** |
| * Sets {@code mode} for the given {@code ops} and the given {@code uid}. |
| * |
| * <p>This method drops shell permission identity. |
| */ |
| private static void setAppOpsModeForUid(int uid, int mode, String... ops) { |
| if (ops == null) { |
| return; |
| } |
| InstrumentationRegistry.getInstrumentation() |
| .getUiAutomation() |
| .adoptShellPermissionIdentity(); |
| try { |
| for (String op : ops) { |
| getContext().getSystemService(AppOpsManager.class).setUidMode(op, uid, mode); |
| } |
| } finally { |
| InstrumentationRegistry.getInstrumentation() |
| .getUiAutomation() |
| .dropShellPermissionIdentity(); |
| } |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| dir = getContext().getDir("testing", Context.MODE_PRIVATE); |
| FileUtils.deleteContents(dir); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| FileUtils.deleteContents(dir); |
| } |
| |
| @Test |
| public void testClassify_empty() { |
| assertEquals(0, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testClassify_emptyDirs() { |
| Environment.buildPath(dir, "DCIM").mkdirs(); |
| Environment.buildPath(dir, "DCIM", "January").mkdirs(); |
| Environment.buildPath(dir, "Downloads").mkdirs(); |
| Environment.buildPath(dir, "LOST.DIR").mkdirs(); |
| assertEquals(0, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testClassify_emptyFactory() throws Exception { |
| Environment.buildPath(dir, "autorun.inf").createNewFile(); |
| Environment.buildPath(dir, "LaunchU3.exe").createNewFile(); |
| Environment.buildPath(dir, "LaunchPad.zip").createNewFile(); |
| assertEquals(0, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testClassify_photos() throws Exception { |
| Environment.buildPath(dir, "DCIM").mkdirs(); |
| Environment.buildPath(dir, "DCIM", "IMG_1024.JPG").createNewFile(); |
| Environment.buildPath(dir, "Download").mkdirs(); |
| Environment.buildPath(dir, "Download", "foobar.pdf").createNewFile(); |
| assertEquals(HAS_DCIM | HAS_DOWNLOADS, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testClassify_other() throws Exception { |
| Environment.buildPath(dir, "Android").mkdirs(); |
| Environment.buildPath(dir, "Android", "com.example").mkdirs(); |
| Environment.buildPath(dir, "Android", "com.example", "internal.dat").createNewFile(); |
| Environment.buildPath(dir, "Linux").mkdirs(); |
| Environment.buildPath(dir, "Linux", "install-amd64-minimal-20170907.iso").createNewFile(); |
| assertEquals(HAS_ANDROID | HAS_OTHER, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testClassify_otherRoot() throws Exception { |
| Environment.buildPath(dir, "Taxes.pdf").createNewFile(); |
| assertEquals(HAS_OTHER, classifyExternalStorageDirectory(dir)); |
| } |
| |
| @Test |
| public void testIsExternalStorageManager() throws Exception { |
| assertFalse(Environment.isExternalStorageManager()); |
| try { |
| setAppOpsModeForUid(Process.myUid(), AppOpsManager.MODE_ALLOWED, |
| AppOpsManager.OPSTR_MANAGE_EXTERNAL_STORAGE); |
| assertTrue(Environment.isExternalStorageManager()); |
| } finally { |
| setAppOpsModeForUid(Process.myUid(), AppOpsManager.MODE_DEFAULT, |
| AppOpsManager.OPSTR_MANAGE_EXTERNAL_STORAGE); |
| } |
| } |
| } |