datastructures/datastructures-bytes/src/test/java/net/openhft/chronicle/bytes/CopyBytesTest.java

81 lines
2.6 KiB
Java

/*
* Copyright 2014-2020 chronicle.software
*
* http://chronicle.software
*
* 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 net.openhft.chronicle.bytes;
import net.openhft.chronicle.core.io.Closeable;
import org.junit.Test;
import java.io.File;
import static org.junit.Assert.assertEquals;
public class CopyBytesTest extends BytesTestCommon {
static void doTest(Bytes toTest, int from) {
Bytes toCopy = Bytes.allocateDirect(32);
Bytes toValidate = Bytes.allocateDirect(32);
try {
toCopy.writeLong(0, (long) 'W' << 56L | 100L);
toCopy.writeLong(8, (long) 'W' << 56L | 200L);
toTest.writePosition(from);
toTest.write(toCopy, 0, 2 * 8L);
toTest.write(toCopy, 0, 8L);
toTest.readPosition(from);
toTest.read(toValidate, 3 * 8);
assertEquals((long) 'W' << 56L | 100L, toValidate.readLong(0));
assertEquals((long) 'W' << 56L | 200L, toValidate.readLong(8));
assertEquals((long) 'W' << 56L | 100L, toValidate.readLong(16));
} finally {
toTest.releaseLast();
toCopy.releaseLast();
toValidate.releaseLast();
// close if closeable.
Closeable.closeQuietly(toTest);
}
}
@Test
public void testCanCopyBytesFromBytes() {
doTest(Bytes.allocateElasticDirect(), 0);
}
@Test
public void testCanCopyBytesFromMappedBytes1() throws Exception {
File bytes = File.createTempFile("mapped-test", "bytes");
bytes.deleteOnExit();
doTest(MappedBytes.mappedBytes(bytes, 64 << 10, 0), 0);
}
@Test
public void testCanCopyBytesFromMappedBytes2() throws Exception {
File bytes = File.createTempFile("mapped-test", "bytes");
bytes.deleteOnExit();
doTest(MappedBytes.mappedBytes(bytes, 64 << 10, 0), (64 << 10) - 8);
}
@Test
public void testCanCopyBytesFromMappedBytes3() throws Exception {
File bytes = File.createTempFile("mapped-test", "bytes");
bytes.deleteOnExit();
doTest(MappedBytes.mappedBytes(bytes, 16 << 10, 16 << 10), (64 << 10) - 8);
}
}