| /* |
| * Copyright (C) 2010 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 libcore.java.util.zip; |
| |
| import libcore.io.Streams; |
| import tests.support.resource.Support_Resources; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Arrays; |
| import java.util.Random; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipInputStream; |
| import java.util.zip.ZipOutputStream; |
| import libcore.junit.junit3.TestCaseWithRules; |
| import libcore.junit.util.ResourceLeakageDetector; |
| import org.junit.Rule; |
| import org.junit.rules.TestRule; |
| |
| public final class ZipInputStreamTest extends TestCaseWithRules { |
| @Rule |
| public TestRule guardRule = ResourceLeakageDetector.getRule(); |
| |
| public void testShortMessage() throws IOException { |
| byte[] data = "Hello World".getBytes("UTF-8"); |
| byte[] zipped = ZipOutputStreamTest.zip("short", data); |
| assertEquals(Arrays.toString(data), Arrays.toString(unzip("short", zipped))); |
| } |
| |
| public void testLongMessage() throws IOException { |
| byte[] data = new byte[1024 * 1024]; |
| new Random().nextBytes(data); |
| assertTrue(Arrays.equals(data, unzip("r", ZipOutputStreamTest.zip("r", data)))); |
| } |
| |
| public static byte[] unzip(String name, byte[] bytes) throws IOException { |
| ZipInputStream in = new ZipInputStream(new ByteArrayInputStream(bytes)); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| |
| ZipEntry entry = in.getNextEntry(); |
| assertEquals(name, entry.getName()); |
| |
| byte[] buffer = new byte[1024]; |
| int count; |
| while ((count = in.read(buffer)) != -1) { |
| out.write(buffer, 0, count); |
| } |
| |
| assertNull(in.getNextEntry()); // There's only one entry in the Zip files we create. |
| |
| in.close(); |
| return out.toByteArray(); |
| } |
| |
| /** |
| * Reference implementation allows reading of empty zip using a {@link ZipInputStream}. |
| */ |
| public void testReadEmpty() throws IOException { |
| InputStream emptyZipIn = Support_Resources.getStream("java/util/zip/EmptyArchive.zip"); |
| ZipInputStream in = new ZipInputStream(emptyZipIn); |
| try { |
| ZipEntry entry = in.getNextEntry(); |
| assertNull("An empty zip has no entries", entry); |
| } finally { |
| in.close(); |
| } |
| } |
| |
| // NOTE: Using octal because it's easiest to use "hexdump -b" to dump file contents. |
| private static final byte[] INCOMPLETE_ZIP = new byte[] { |
| 0120, 0113, 0003, 0004, 0024, 0000, 0010, 0010, 0010, 0000, 0002, 0035, (byte) 0330, |
| 0106, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0013, |
| 0000, 0000, 0000, 0146, 0157, 0157, 0057, 0142, 0141, 0162, 0056, 0160, 0156, 0147 }; |
| |
| // http://b//21846904 |
| public void testReadOnIncompleteStream() throws Exception { |
| ZipInputStream zi = new ZipInputStream(new ByteArrayInputStream(INCOMPLETE_ZIP)); |
| ZipEntry ze = zi.getNextEntry(); |
| |
| // read() and closeEntry() must throw IOExceptions to indicate that |
| // the stream is corrupt. The bug above reported that they would loop |
| // forever. |
| try { |
| zi.read(new byte[1024], 0, 1024); |
| fail(); |
| } catch (IOException expected) { |
| } |
| |
| try { |
| zi.closeEntry(); |
| fail(); |
| } catch (IOException expected) { |
| } |
| |
| zi.close(); |
| } |
| |
| public void testAvailable() throws Exception { |
| // NOTE: We don't care about the contents of any of these entries as long as they're |
| // not empty. |
| ZipInputStream zis = new ZipInputStream(new ByteArrayInputStream( |
| zip(new String[] { "foo", "bar", "baz" }, new byte[] { 0, 0, 0, 1, 1, 1 }))); |
| |
| assertEquals(1, zis.available()); |
| zis.getNextEntry(); |
| assertEquals(1, zis.available()); |
| zis.closeEntry(); |
| // On Android M and below, this call would return "1". That seems a bit odd given that the |
| // contract for available states that we should return 1 if there are any bytes left to read |
| // from the "current" entry. |
| assertEquals(0, zis.available()); |
| |
| // There shouldn't be any bytes left to read if the entry is fully consumed... |
| zis.getNextEntry(); |
| Streams.readFullyNoClose(zis); |
| assertEquals(0, zis.available()); |
| |
| // ... or if the entry is fully skipped over. |
| zis.getNextEntry(); |
| zis.skip(Long.MAX_VALUE); |
| assertEquals(0, zis.available()); |
| |
| // There are no entries left in the file, so there whould be nothing left to read. |
| assertNull(zis.getNextEntry()); |
| assertEquals(0, zis.available()); |
| |
| zis.close(); |
| } |
| |
| private static final byte[] ZIP_WITH_DATA_DESCRIPTOR = new byte[] { |
| (byte) 80, 75, 3, 4, 10, 0, 8, 0, 0, 0, -51, 90, -121, 80, -20, 62, -84, -103, 2, 0, 0, 0, 2, 0, 0, 0, 8, 0, 28, 0, 116, 101, 115, 116, 46, 116, 120, 116, 85, 84, 9, 0, 3, 97, 84, -116, 94, 102, 84, -116, 94, 117, 120, 11, 0, 1, 4, -119, 66, 0, 0, 4, 83, 95, 1, 0, 72, 10, 80, 75, 7, 8, -20, 62, -84, -103, 2, 0, 0, 0, 2, 0, 0, 0, 80, 75, 1, 2, 30, 3, 10, 0, 0, 0, 0, 0, -51, 90, -121, 80, -20, 62, -84, -103, 2, 0, 0, 0, 2, 0, 0, 0, 8, 0, 24, 0, 0, 0, 0, 0, 1, 0, 0, 0, -92, -127, 0, 0, 0, 0, 116, 101, 115, 116, 46, 116, 120, 116, 85, 84, 5, 0, 3, 97, 84, -116, 94, 117, 120, 11, 0, 1, 4, -119, 66, 0, 0, 4, 83, 95, 1, 0, 80, 75, 5, 6, 0, 0, 0, 0, 1, 0, 1, 0, 78, 0, 0, 0, 84, 0, 0, 0, 0, 0 }; |
| |
| public void testDataDescriptorOnStoredEntry() throws Exception { |
| ZipInputStream zis = new ZipInputStream(new ByteArrayInputStream( |
| ZIP_WITH_DATA_DESCRIPTOR)); |
| |
| ZipEntry entry = zis.getNextEntry(); |
| assertEquals("test.txt", entry.getName()); |
| |
| zis.close(); |
| } |
| |
| private static byte[] zip(String[] names, byte[] bytes) throws IOException { |
| ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(); |
| ZipOutputStream zippedOut = new ZipOutputStream(bytesOut); |
| |
| for (String name : names) { |
| ZipEntry entry = new ZipEntry(name); |
| zippedOut.putNextEntry(entry); |
| zippedOut.write(bytes); |
| zippedOut.closeEntry(); |
| } |
| |
| zippedOut.close(); |
| return bytesOut.toByteArray(); |
| } |
| } |