| /* |
| * Copyright (C) 2019 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 com.android.tests.fused.host; |
| |
| import static org.junit.Assert.assertTrue; |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.android.tradefed.device.ITestDevice; |
| import com.android.tradefed.testtype.DeviceJUnit4ClassRunner; |
| import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Runs the legacy file path access tests. |
| */ |
| @RunWith(DeviceJUnit4ClassRunner.class) |
| public class LegacyAccessHostTest extends BaseHostJUnit4Test { |
| |
| public static final String SHELL_FILE = "/sdcard/LegacyAccessHostTest_shell"; |
| |
| private String executeShellCommand(String cmd) throws Exception { |
| return getDevice().executeShellCommand(cmd); |
| } |
| |
| /** |
| * Runs the given phase of LegacyFileAccessTest by calling into the device. |
| * Throws an exception if the test phase fails. |
| */ |
| private void runDeviceTest(String phase) throws Exception { |
| assertTrue(runDeviceTests("com.android.tests.fused.legacy", |
| "com.android.tests.fused.legacy.LegacyFileAccessTest", |
| phase)); |
| } |
| |
| /** |
| * <p> Keep in mind that granting WRITE_EXTERNAL_STORAGE also grants READ_EXTERNAL_STORAGE, |
| * so in order to test a case where the reader has only WRITE, we must explicitly revoke READ. |
| */ |
| private void grantPermissions(String... perms) throws Exception { |
| for (String perm : perms) { |
| executeShellCommand("pm grant com.android.tests.fused.legacy " + perm); |
| } |
| } |
| |
| private void revokePermissions(String... perms) throws Exception { |
| for (String perm : perms) { |
| executeShellCommand("pm revoke com.android.tests.fused.legacy " + perm); |
| } |
| } |
| |
| /** |
| * Creates a file {@code filePath} in shell and may bypass Media Provider restrictions for |
| * creating file. |
| */ |
| private void createFileAsShell(String filePath, boolean bypassFuse) throws Exception { |
| if (bypassFuse) { |
| // Run shell as root to bypass Media Provider. |
| final ITestDevice device = getDevice(); |
| final boolean isAdbRoot = device.isAdbRoot() ? true : false; |
| if (!isAdbRoot) { |
| device.enableAdbRoot(); |
| } |
| executeShellCommand("touch " + filePath); |
| if (!isAdbRoot) { |
| device.disableAdbRoot(); |
| } |
| assertThat(getDevice().doesFileExist(filePath)).isTrue(); |
| } else { |
| executeShellCommand("touch " + filePath); |
| assertThat(getDevice().doesFileExist(filePath)).isTrue(); |
| } |
| } |
| |
| @Before |
| public void setup() throws Exception { |
| // Granting WRITE automatically grants READ as well, so we grant them both explicitly by |
| // default in order to avoid confusion. Test cases that don't want any of those permissions |
| // have to revoke the unwanted permissions. |
| grantPermissions("android.permission.WRITE_EXTERNAL_STORAGE", |
| "android.permission.READ_EXTERNAL_STORAGE"); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE", |
| "android.permission.READ_EXTERNAL_STORAGE"); |
| } |
| |
| @Test |
| public void testCreateFilesInRandomPlaces_hasW() throws Exception { |
| revokePermissions("android.permission.READ_EXTERNAL_STORAGE"); |
| executeShellCommand("mkdir -p /sdcard/Android/data/com.android.shell"); |
| runDeviceTest("testCreateFilesInRandomPlaces_hasW"); |
| } |
| |
| @Test |
| public void testMkdirInRandomPlaces_hasW() throws Exception { |
| revokePermissions("android.permission.READ_EXTERNAL_STORAGE"); |
| executeShellCommand("mkdir -p /sdcard/Android/data/com.android.shell"); |
| runDeviceTest("testMkdirInRandomPlaces_hasW"); |
| } |
| |
| @Test |
| public void testReadOnlyExternalStorage_hasR() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE"); |
| createFileAsShell(SHELL_FILE, /*bypassFuse*/ true); |
| try { |
| runDeviceTest("testReadOnlyExternalStorage_hasR"); |
| } finally { |
| executeShellCommand("rm " + SHELL_FILE); |
| } |
| } |
| |
| @Test |
| public void testCantAccessExternalStorage() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE", |
| "android.permission.READ_EXTERNAL_STORAGE"); |
| createFileAsShell(SHELL_FILE, /*bypassFuse*/ true); |
| try { |
| runDeviceTest("testCantAccessExternalStorage"); |
| } finally { |
| executeShellCommand("rm " + SHELL_FILE); |
| } |
| } |
| |
| @Test |
| public void testListFiles_hasR() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE"); |
| createFileAsShell(SHELL_FILE, /*bypassFuse*/ true); |
| try { |
| runDeviceTest("testListFiles_hasR"); |
| } finally { |
| executeShellCommand("rm " + SHELL_FILE); |
| } |
| |
| } |
| |
| @Test |
| public void testCanRename_hasRW() throws Exception { |
| runDeviceTest("testCanRename_hasRW"); |
| } |
| |
| @Test |
| public void testCantRename_hasR() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE"); |
| runDeviceTest("testCantRename_hasR"); |
| } |
| |
| |
| @Test |
| public void testCantRename_noStoragePermission() throws Exception { |
| revokePermissions("android.permission.WRITE_EXTERNAL_STORAGE", |
| "android.permission.READ_EXTERNAL_STORAGE"); |
| createFileAsShell(SHELL_FILE, /*bypassFuse*/ true); |
| try { |
| runDeviceTest("testCantRename_noStoragePermission"); |
| } finally { |
| executeShellCommand("rm " + SHELL_FILE); |
| } |
| } |
| |
| @Test |
| public void testCanDeleteAllFiles_hasRW() throws Exception { |
| runDeviceTest("testCanDeleteAllFiles_hasRW"); |
| } |
| } |