| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.db.marshal; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| |
| import static org.quicktheories.QuickTheory.qt; |
| |
| public class ByteBufferAccessorTest extends ValueAccessorTester |
| { |
| private static byte[] array(int start, int size) |
| { |
| byte[] a = new byte[size]; |
| for (int i = 0; i < size; i++) |
| a[i] = (byte) (start + i); |
| return a; |
| } |
| |
| private <V> void testCopyFromOffsets(ValueAccessor<V> dstAccessor, int padding1, int padding2) |
| { |
| ByteBuffer src = leftPad(ByteBuffer.wrap(array(0, 10)), padding1); |
| src.position(src.position() + 5); |
| Assert.assertEquals(5, src.remaining()); |
| |
| V dst = leftPad(dstAccessor.allocate(5), padding2); |
| ByteBufferAccessor.instance.copyTo(src, 0, dst, dstAccessor, 0, 5); |
| Assert.assertArrayEquals(array(5, 5), dstAccessor.toArray(dst)); |
| } |
| |
| /** |
| * Test byte buffers with position > 0 are copied correctly |
| */ |
| @Test |
| public void testCopyFromOffets() |
| { |
| qt().forAll(accessors(), bbPadding(), bbPadding()) |
| .checkAssert(this::testCopyFromOffsets); |
| } |
| |
| private <V> void testCopyToOffsets(ValueAccessor<V> srcAccessor, int padding1, int padding2) |
| { |
| byte[] value = array(5, 5); |
| V src = leftPad(srcAccessor.allocate(5), padding1); |
| ByteArrayAccessor.instance.copyTo(value, 0, src, srcAccessor, 0, value.length); |
| |
| ByteBuffer bb = leftPad(ByteBuffer.wrap(new byte[10]), padding2); |
| ByteBuffer actual = bb.duplicate(); |
| bb.position(bb.position() + 5); |
| srcAccessor.copyTo(src, 0, bb, ByteBufferAccessor.instance, 0, value.length); |
| |
| byte[] expected = new byte[10]; |
| System.arraycopy(value, 0, expected, 5, 5); |
| Assert.assertArrayEquals(srcAccessor.getClass().getSimpleName(), expected, ByteBufferUtil.getArray(actual)); |
| } |
| |
| @Test |
| public void testCopyToOffsets() |
| { |
| qt().forAll(accessors(), bbPadding(), bbPadding()) |
| .checkAssert(this::testCopyToOffsets); |
| } |
| } |