| /* |
| * Copyright (C) 2015 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.mtp; |
| |
| import android.os.ParcelFileDescriptor; |
| import android.os.storage.StorageManager; |
| import android.system.ErrnoException; |
| import android.system.Os; |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.MediumTest; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| @MediumTest |
| public class AppFuseTest extends AndroidTestCase { |
| public void testMount() throws ErrnoException, IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final AppFuse appFuse = new AppFuse("test", new TestCallback()); |
| appFuse.mount(storageManager); |
| final File file = appFuse.getMountPoint(); |
| assertTrue(file.isDirectory()); |
| assertEquals(1, Os.stat(file.getPath()).st_ino); |
| appFuse.close(); |
| assertTrue(1 != Os.stat(file.getPath()).st_ino); |
| } |
| |
| public void testOpenFile() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int INODE = 10; |
| final AppFuse appFuse = new AppFuse( |
| "test", |
| new TestCallback() { |
| @Override |
| public long getFileSize(int inode) throws FileNotFoundException { |
| if (INODE == inode) { |
| return 1024; |
| } |
| throw new FileNotFoundException(); |
| } |
| }); |
| appFuse.mount(storageManager); |
| final ParcelFileDescriptor fd = appFuse.openFile( |
| INODE, ParcelFileDescriptor.MODE_READ_ONLY); |
| fd.close(); |
| appFuse.close(); |
| } |
| |
| public void testOpenFile_fileNotFound() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int INODE = 10; |
| final AppFuse appFuse = new AppFuse("test", new TestCallback()); |
| appFuse.mount(storageManager); |
| try { |
| appFuse.openFile(INODE, ParcelFileDescriptor.MODE_READ_ONLY); |
| fail(); |
| } catch (FileNotFoundException exp) {} |
| appFuse.close(); |
| } |
| |
| public void testOpenFile_illegalMode() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int INODE = 10; |
| final AppFuse appFuse = new AppFuse("test", new TestCallback()); |
| appFuse.mount(storageManager); |
| try { |
| appFuse.openFile(INODE, ParcelFileDescriptor.MODE_READ_WRITE); |
| fail(); |
| } catch (IllegalArgumentException exp) {} |
| appFuse.close(); |
| } |
| |
| public void testReadFile() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int fileInode = 10; |
| final byte[] fileBytes = new byte[] { 'a', 'b', 'c', 'd', 'e' }; |
| final AppFuse appFuse = new AppFuse( |
| "test", |
| new TestCallback() { |
| @Override |
| public long getFileSize(int inode) throws FileNotFoundException { |
| if (inode == fileInode) { |
| return fileBytes.length; |
| } |
| return super.getFileSize(inode); |
| } |
| |
| @Override |
| public long readObjectBytes(int inode, long offset, long size, byte[] bytes) |
| throws IOException { |
| if (inode == fileInode) { |
| int i = 0; |
| while (i < size && i + offset < fileBytes.length) { |
| bytes[i] = fileBytes[(int) (i + offset)]; |
| i++; |
| } |
| return i; |
| } |
| return super.readObjectBytes(inode, offset, size, bytes); |
| } |
| }); |
| appFuse.mount(storageManager); |
| final ParcelFileDescriptor fd = appFuse.openFile( |
| fileInode, ParcelFileDescriptor.MODE_READ_ONLY); |
| try (final ParcelFileDescriptor.AutoCloseInputStream stream = |
| new ParcelFileDescriptor.AutoCloseInputStream(fd)) { |
| final byte[] buffer = new byte[1024]; |
| final int size = stream.read(buffer, 0, buffer.length); |
| assertEquals(5, size); |
| } |
| appFuse.close(); |
| } |
| |
| public void testWriteFile() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int INODE = 10; |
| final byte[] resultBytes = new byte[5]; |
| final AppFuse appFuse = new AppFuse( |
| "test", |
| new TestCallback() { |
| @Override |
| public long getFileSize(int inode) throws FileNotFoundException { |
| if (inode != INODE) { |
| throw new FileNotFoundException(); |
| } |
| return resultBytes.length; |
| } |
| |
| @Override |
| public int writeObjectBytes(int inode, long offset, int size, byte[] bytes) { |
| for (int i = 0; i < size; i++) { |
| resultBytes[(int)(offset + i)] = bytes[i]; |
| } |
| return size; |
| } |
| }); |
| appFuse.mount(storageManager); |
| final ParcelFileDescriptor fd = appFuse.openFile( |
| INODE, ParcelFileDescriptor.MODE_WRITE_ONLY); |
| try (final ParcelFileDescriptor.AutoCloseOutputStream stream = |
| new ParcelFileDescriptor.AutoCloseOutputStream(fd)) { |
| stream.write('a'); |
| stream.write('b'); |
| stream.write('c'); |
| stream.write('d'); |
| stream.write('e'); |
| } |
| final byte[] BYTES = new byte[] { 'a', 'b', 'c', 'd', 'e' }; |
| assertTrue(Arrays.equals(BYTES, resultBytes)); |
| appFuse.close(); |
| } |
| |
| public void testWriteFile_writeError() throws IOException { |
| final StorageManager storageManager = getContext().getSystemService(StorageManager.class); |
| final int INODE = 10; |
| final AppFuse appFuse = new AppFuse( |
| "test", |
| new TestCallback() { |
| @Override |
| public long getFileSize(int inode) throws FileNotFoundException { |
| if (inode != INODE) { |
| throw new FileNotFoundException(); |
| } |
| return 5; |
| } |
| }); |
| appFuse.mount(storageManager); |
| final ParcelFileDescriptor fd = appFuse.openFile( |
| INODE, ParcelFileDescriptor.MODE_WRITE_ONLY); |
| try (final ParcelFileDescriptor.AutoCloseOutputStream stream = |
| new ParcelFileDescriptor.AutoCloseOutputStream(fd)) { |
| stream.write('a'); |
| fail(); |
| } catch (IOException e) { |
| } |
| appFuse.close(); |
| } |
| |
| private static class TestCallback implements AppFuse.Callback { |
| @Override |
| public long getFileSize(int inode) throws FileNotFoundException { |
| throw new FileNotFoundException(); |
| } |
| |
| @Override |
| public long readObjectBytes(int inode, long offset, long size, byte[] bytes) |
| throws IOException { |
| throw new IOException(); |
| } |
| |
| @Override |
| public int writeObjectBytes(int inode, long offset, int size, byte[] bytes) |
| throws IOException { |
| throw new IOException(); |
| } |
| } |
| } |