| // Copyright 2015 The Bazel Authors. All rights reserved. |
| // |
| // 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.google.devtools.build.android.ziputils; |
| |
| import static com.google.common.truth.Truth.assertWithMessage; |
| import static com.google.devtools.build.android.ziputils.DataDescriptor.EXTCRC; |
| import static com.google.devtools.build.android.ziputils.DataDescriptor.EXTLEN; |
| import static com.google.devtools.build.android.ziputils.DataDescriptor.EXTSIG; |
| import static com.google.devtools.build.android.ziputils.DataDescriptor.EXTSIZ; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.zip.ZipInputStream; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link DataDescriptor}. */ |
| @RunWith(JUnit4.class) |
| public class DataDescriptorTest { |
| |
| /** |
| * Test of viewOf method, of class DataDescriptor. |
| */ |
| @Test |
| public void testViewOf() { |
| int[] markers = { 12345678, DataDescriptor.SIGNATURE, 0}; |
| for (int marker : markers) { |
| ByteBuffer buffer = ByteBuffer.allocate(50).order(ByteOrder.LITTLE_ENDIAN); |
| for (int i = 0; i < 50; i++) { |
| buffer.put((byte) i); |
| } |
| int offset = 20; |
| buffer.putInt(offset, marker); |
| buffer.position(offset); |
| DataDescriptor view = DataDescriptor.viewOf(buffer); |
| int expMark = marker == DataDescriptor.SIGNATURE ? (int) ZipInputStream.EXTSIG : -1; |
| int expSize = marker == DataDescriptor.SIGNATURE ? ZipInputStream.EXTHDR |
| : ZipInputStream.EXTHDR - 4; |
| int expPos = 0; |
| assertWithMessage("not based at current position[" + marker + "]") |
| .that(view.get(EXTSIG)) |
| .isEqualTo(expMark); |
| assertWithMessage("Not slice with position 0[" + marker + "]") |
| .that(view.buffer.position()) |
| .isEqualTo(expPos); |
| assertWithMessage("Not sized with comment[" + marker + "]") |
| .that(view.getSize()) |
| .isEqualTo(expSize); |
| assertWithMessage("Not limited to size[" + marker + "]") |
| .that(view.buffer.limit()) |
| .isEqualTo(expSize); |
| } |
| } |
| |
| /** |
| * Test of view method, of class DataDescriptor. |
| */ |
| @Test |
| public void testView_0args() { |
| DataDescriptor view = DataDescriptor.allocate(); |
| int expSize = ZipInputStream.EXTHDR; |
| int expPos = 0; |
| int expMarker = (int) ZipInputStream.EXTSIG; |
| assertWithMessage("no marker").that(view.hasMarker()).isTrue(); |
| assertWithMessage("No marker").that(view.get(EXTSIG)).isEqualTo(expMarker); |
| assertWithMessage("Not at position 0").that(view.buffer.position()).isEqualTo(expPos); |
| assertWithMessage("Not sized correctly").that(view.getSize()).isEqualTo(expSize); |
| assertWithMessage("Not limited to size").that(view.buffer.limit()).isEqualTo(expSize); |
| } |
| |
| /** |
| * Test of view method, of class DataDescriptor. |
| */ |
| @Test |
| public void testView_ByteBuffer() { |
| ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN); |
| for (int i = 0; i < 100; i++) { |
| buffer.put((byte) i); |
| } |
| buffer.position(50); |
| DataDescriptor view = DataDescriptor.view(buffer); |
| int expMark = (int) ZipInputStream.EXTSIG; |
| int expSize = ZipInputStream.EXTHDR; |
| int expPos = 0; |
| assertWithMessage("not based at current position").that(view.get(EXTSIG)).isEqualTo(expMark); |
| assertWithMessage("Not slice with position 0").that(view.buffer.position()).isEqualTo(expPos); |
| assertWithMessage("Not sized with comment").that(view.getSize()).isEqualTo(expSize); |
| assertWithMessage("Not limited to size").that(view.buffer.limit()).isEqualTo(expSize); |
| } |
| |
| /** |
| * Test of copy method, of class DataDescriptor. |
| */ |
| @Test |
| public void testCopy() { |
| ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN); |
| DataDescriptor view = DataDescriptor.allocate(); |
| view.copy(buffer); |
| int expSize = view.getSize(); |
| assertWithMessage("buffer not advanced as expected").that(buffer.position()).isEqualTo(expSize); |
| buffer.position(0); |
| DataDescriptor clone = DataDescriptor.viewOf(buffer); |
| assertWithMessage("Fail to copy mark").that(clone.get(EXTSIG)).isEqualTo(view.get(EXTSIG)); |
| } |
| |
| /** |
| * Test of with and get methods. |
| */ |
| @Test |
| public void testWithAndGetMethods() { |
| int crc = 0x12345678; |
| int compressed = 0x357f1d5; |
| int uncompressed = 0x74813159; |
| DataDescriptor view = DataDescriptor.allocate() |
| .set(EXTCRC, crc) |
| .set(EXTSIZ, compressed) |
| .set(EXTLEN, uncompressed); |
| assertWithMessage("CRC").that(view.get(EXTCRC)).isEqualTo(crc); |
| assertWithMessage("Compressed size").that(view.get(EXTSIZ)).isEqualTo(compressed); |
| assertWithMessage("Uncompressed size").that(view.get(EXTLEN)).isEqualTo(uncompressed); |
| } |
| } |