--- /dev/null
+/*
+ * Copyright (C) 2008 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.content.res.cts;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import android.content.res.AssetFileDescriptor;
+import android.os.Parcel;
+import android.os.ParcelFileDescriptor;
+import android.test.AndroidTestCase;
+import dalvik.annotation.TestLevel;
+import dalvik.annotation.TestTargetClass;
+import dalvik.annotation.TestTargetNew;
+import dalvik.annotation.TestTargets;
+
+@TestTargetClass(AssetFileDescriptor.class)
+public class AssetFileDescriptorTest extends AndroidTestCase {
+ private static final long START_OFFSET = 0;
+ private static final long LENGTH = 100;
+ private static final String FILE_NAME = "testAssetFileDescriptor";
+ private static final byte[] FILE_DATA =
+ new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
+ private static final int FILE_END = -1;
+ private AssetFileDescriptor mAssetFileDes;
+ private File mFile;
+ private ParcelFileDescriptor mFd;
+ private FileOutputStream mOutputStream;
+ private FileInputStream mInputStream;
+
+ @Override
+ protected void setUp() throws Exception {
+ super.setUp();
+ mFile = new File(getContext().getFilesDir(), FILE_NAME);
+ mFile.createNewFile();
+ initAssetFileDescriptor();
+ }
+
+ private void initAssetFileDescriptor() throws FileNotFoundException {
+ mFd = ParcelFileDescriptor.open(mFile, ParcelFileDescriptor.MODE_READ_WRITE);
+ mAssetFileDes = new AssetFileDescriptor(mFd, START_OFFSET, LENGTH);
+ }
+
+ @Override
+ protected void tearDown() throws Exception {
+ super.tearDown();
+ // As {@link AssetFileDescripter#createOutputStream()}
+ // and {@link AssetFileDescripter#createInputStream()} doc,
+ // the input and output stream will be auto closed when the AssetFileDescriptor closed.
+ if (mAssetFileDes != null) {
+ mAssetFileDes.close();
+ }
+ getContext().deleteFile(FILE_NAME);
+ }
+
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "close",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "createInputStream",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "createOutputStream",
+ args = {}
+ )
+ })
+ public void testInputOutputStream() throws IOException {
+ /*
+ * test createOutputStream() and createInputStrean()
+ * test point
+ * 1. createOutputStream() and createInputStrean() should only call this once
+ * for a particular asset.
+ * 2. outputStream can write and inputStream can read.
+ * 3. auto close.
+ */
+ mOutputStream = mAssetFileDes.createOutputStream();
+ assertNotNull(mOutputStream);
+ mOutputStream.write(FILE_DATA);
+ mOutputStream.flush();
+ mOutputStream.close();
+ mOutputStream = null;
+ try {
+ mOutputStream = mAssetFileDes.createOutputStream();
+ fail("Should throw IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expect
+ }
+ try {
+ mInputStream = mAssetFileDes.createInputStream();
+ fail("Should throw IOException");
+ } catch (IOException e) {
+ // expect
+ }
+ mAssetFileDes.close();
+ mAssetFileDes = null;
+
+ initAssetFileDescriptor();
+ mInputStream = mAssetFileDes.createInputStream();
+ assertNotNull(mInputStream);
+ byte[] dataFromFile = new byte[FILE_DATA.length];
+ int readLength = 0;
+ int readByte = 0;
+ while ((readByte != FILE_END) && (readLength < FILE_DATA.length)) {
+ readLength += readByte;
+ readByte = mInputStream.read(dataFromFile,
+ readLength, FILE_DATA.length - readLength);
+ }
+ assertEquals(FILE_DATA.length, readLength);
+ assertTrue(Arrays.equals(FILE_DATA, dataFromFile));
+ assertEquals(FILE_END, mInputStream.read());
+ mInputStream.close();
+ mInputStream = null;
+ try {
+ mInputStream = mAssetFileDes.createInputStream();
+ fail("Should throw IOException");
+ } catch (IOException e) {
+ // expect
+ }
+ try {
+ mOutputStream = mAssetFileDes.createOutputStream();
+ fail("Should throw IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // expect
+ }
+ mAssetFileDes.close();
+ mAssetFileDes = null;
+
+ initAssetFileDescriptor();
+ mOutputStream = mAssetFileDes.createOutputStream();
+ mAssetFileDes.close();
+ mAssetFileDes = null;
+ try {
+ mOutputStream.write(FILE_DATA);
+ fail("Should throw IOException");
+ } catch (IOException e) {
+ // expect
+ }
+
+ initAssetFileDescriptor();
+ mInputStream = mAssetFileDes.createInputStream();
+ mAssetFileDes.close();
+ mAssetFileDes = null;
+ try {
+ mInputStream.read();
+ fail("Should throw IOException");
+ } catch (IOException e) {
+ // expect
+ }
+ }
+
+ @TestTargets({
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ notes = "Test construct.",
+ method = "AssetFileDescriptor",
+ args = {ParcelFileDescriptor.class, long.class, long.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getParcelFileDescriptor",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getFileDescriptor",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getLength",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getStartOffset",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "toString",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "describeContents",
+ args = {}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "writeToParcel",
+ args = {Parcel.class, int.class}
+ ),
+ @TestTargetNew(
+ level = TestLevel.COMPLETE,
+ method = "getDeclaredLength",
+ args = {}
+ )
+ })
+ public void testMiscMethod() {
+ // test constructor
+ new AssetFileDescriptor(null, START_OFFSET, LENGTH);
+
+ // test getLength()
+ assertEquals(LENGTH, mAssetFileDes.getLength());
+
+ // test getStartOffset()
+ assertEquals(START_OFFSET, mAssetFileDes.getStartOffset());
+
+ // test getParcelFileDescriptor() getFileDescriptor() toString() and describeContents()
+ assertSame(mFd, mAssetFileDes.getParcelFileDescriptor());
+ assertSame(mFd.getFileDescriptor(), mAssetFileDes.getFileDescriptor());
+ assertNotNull(mAssetFileDes.toString());
+ assertEquals(mFd.describeContents(), mAssetFileDes.describeContents());
+
+ // test writeToParcel(), test by assert source and out FileDescriptor content equals.
+ Parcel parcel = Parcel.obtain();
+ mAssetFileDes.writeToParcel(parcel, 0);
+ parcel.setDataPosition(0);
+ AssetFileDescriptor out = AssetFileDescriptor.CREATOR.createFromParcel(parcel);
+ assertEquals(out.getStartOffset(), mAssetFileDes.getStartOffset());
+ assertEquals(out.getDeclaredLength(), mAssetFileDes.getDeclaredLength());
+ assertEquals(out.getParcelFileDescriptor().getStatSize(),
+ mAssetFileDes.getParcelFileDescriptor().getStatSize());
+ }
+}
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