/*
* Copyright 2016-present Facebook, Inc.
*
* 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.facebook.buck.macho;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import org.junit.Test;
public class SymTabCommandTest {
@Test
public void testCreatingFromBytesBigEndian() throws Exception {
ByteBuffer buffer =
ByteBuffer.wrap(SymTabCommandTestData.getBigEndian()).order(ByteOrder.BIG_ENDIAN);
buffer.position(0);
SymTabCommand command = SymTabCommandUtils.createFromBuffer(buffer);
SymTabCommandTestData.checkValues(command);
}
@Test
public void testCreatingFromBytesLittleEndian() throws Exception {
ByteBuffer buffer =
ByteBuffer.wrap(SymTabCommandTestData.getLittleEndian()).order(ByteOrder.LITTLE_ENDIAN);
SymTabCommand command = SymTabCommandUtils.createFromBuffer(buffer);
SymTabCommandTestData.checkValues(command);
}
@Test
public void testGettingBytesBigEndian() {
ByteBuffer buffer =
ByteBuffer.wrap(SymTabCommandTestData.getBigEndian()).order(ByteOrder.BIG_ENDIAN);
SymTabCommand command = SymTabCommandUtils.createFromBuffer(buffer);
ByteBuffer bigEndian =
ByteBuffer.allocate(command.getLoadCommandCommonFields().getCmdsize().intValue())
.order(ByteOrder.BIG_ENDIAN);
SymTabCommandUtils.writeCommandToBuffer(command, bigEndian);
ByteBuffer littleEndian =
ByteBuffer.allocate(command.getLoadCommandCommonFields().getCmdsize().intValue())
.order(ByteOrder.LITTLE_ENDIAN);
SymTabCommandUtils.writeCommandToBuffer(command, littleEndian);
assertThat(SymTabCommandTestData.getBigEndian(), equalTo(bigEndian.array()));
assertThat(SymTabCommandTestData.getLittleEndian(), equalTo(littleEndian.array()));
}
@Test
public void testGettingBytesLittleEndian() {
ByteBuffer buffer =
ByteBuffer.wrap(SymTabCommandTestData.getLittleEndian()).order(ByteOrder.LITTLE_ENDIAN);
SymTabCommand command = SymTabCommandUtils.createFromBuffer(buffer);
ByteBuffer bigEndian =
ByteBuffer.allocate(command.getLoadCommandCommonFields().getCmdsize().intValue())
.order(ByteOrder.BIG_ENDIAN);
SymTabCommandUtils.writeCommandToBuffer(command, bigEndian);
ByteBuffer littleEndian =
ByteBuffer.allocate(command.getLoadCommandCommonFields().getCmdsize().intValue())
.order(ByteOrder.LITTLE_ENDIAN);
SymTabCommandUtils.writeCommandToBuffer(command, littleEndian);
assertThat(SymTabCommandTestData.getLittleEndian(), equalTo(littleEndian.array()));
assertThat(SymTabCommandTestData.getBigEndian(), equalTo(bigEndian.array()));
}
}