| /* |
| * 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.datasketches.memory.internal; |
| |
| import static org.testng.Assert.assertEquals; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.List; |
| |
| import org.apache.datasketches.memory.WritableHandle; |
| import org.apache.datasketches.memory.Buffer; |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.datasketches.memory.WritableBuffer; |
| import org.apache.datasketches.memory.WritableMemory; |
| import org.testng.annotations.Test; |
| import org.testng.collections.Lists; |
| |
| public class BufferTest { |
| |
| @Test |
| public void checkDirectRoundTrip() throws Exception { |
| int n = 1024; //longs |
| try (WritableHandle wh = WritableMemory.allocateDirect(n * 8)) { |
| WritableMemory wmem = wh.getWritable(); |
| WritableBuffer wbuf = wmem.asWritableBuffer(); |
| for (int i = 0; i < n; i++) { |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| } |
| } |
| |
| @Test |
| public void checkAutoHeapRoundTrip() { |
| int n = 1024; //longs |
| WritableBuffer wbuf = WritableMemory.allocate(n * 8).asWritableBuffer(); |
| for (int i = 0; i < n; i++) { |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| } |
| |
| @Test |
| public void checkArrayWrap() { |
| int n = 1024; //longs |
| byte[] arr = new byte[n * 8]; |
| WritableBuffer wbuf = WritableMemory.writableWrap(arr).asWritableBuffer(); |
| for (int i = 0; i < n; i++) { |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| Buffer buf = Memory.wrap(arr).asBuffer(); |
| buf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = buf.getLong(); |
| assertEquals(v, i); |
| } |
| // Check Zero length array wraps |
| Memory mem = Memory.wrap(new byte[0]); |
| Buffer buffZeroLengthArrayWrap = mem.asBuffer(); |
| assertEquals(buffZeroLengthArrayWrap.getCapacity(), 0); |
| // check 0 length array wraps |
| List<Buffer> buffersToCheck = Lists.newArrayList(); |
| buffersToCheck.add(WritableMemory.allocate(0).asBuffer()); |
| buffersToCheck.add(WritableBuffer.writableWrap(ByteBuffer.allocate(0))); |
| buffersToCheck.add(Buffer.wrap(ByteBuffer.allocate(0))); |
| buffersToCheck.add(Memory.wrap(new boolean[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new byte[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new char[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new short[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new int[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new long[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new float[0]).asBuffer()); |
| buffersToCheck.add(Memory.wrap(new double[0]).asBuffer()); |
| //Check the buffer lengths |
| for (Buffer buffer : buffersToCheck) { |
| assertEquals(buffer.getCapacity(), 0); |
| } |
| } |
| |
| @Test |
| public void simpleBBTest() { |
| int n = 1024; //longs |
| byte[] arr = new byte[n * 8]; |
| ByteBuffer bb = ByteBuffer.wrap(arr); |
| bb.order(ByteOrder.nativeOrder()); |
| |
| WritableBuffer wbuf = WritableBuffer.writableWrap(bb); |
| for (int i = 0; i < n; i++) { //write to wbuf |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { //read from wbuf |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| for (int i = 0; i < n; i++) { //read from BB |
| long v = bb.getLong(); |
| assertEquals(v, i); |
| } |
| } |
| |
| @Test |
| public void checkByteBufHeap() { |
| int n = 1024; //longs |
| byte[] arr = new byte[n * 8]; |
| ByteBuffer bb = ByteBuffer.wrap(arr); |
| bb.order(ByteOrder.nativeOrder()); |
| |
| WritableBuffer wbuf = WritableBuffer.writableWrap(bb); |
| for (int i = 0; i < n; i++) { //write to wbuf |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { //read from wbuf |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| for (int i = 0; i < n; i++) { //read from BB |
| long v = bb.getLong(i * 8); |
| assertEquals(v, i); |
| } |
| Buffer buf1 = Memory.wrap(arr).asBuffer(); |
| for (int i = 0; i < n; i++) { //read from wrapped arr |
| long v = buf1.getLong(); |
| assertEquals(v, i); |
| } |
| //convert to wbuf to RO |
| Buffer buf = wbuf; |
| buf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = buf.getLong(); |
| assertEquals(v, i); |
| } |
| } |
| |
| @Test |
| public void checkByteBufDirect() { |
| int n = 1024; //longs |
| ByteBuffer bb = ByteBuffer.allocateDirect(n * 8); |
| bb.order(ByteOrder.nativeOrder()); |
| |
| WritableBuffer wbuf = WritableBuffer.writableWrap(bb); |
| for (int i = 0; i < n; i++) { //write to wmem |
| wbuf.putLong(i); |
| } |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { //read from wmem |
| long v = wbuf.getLong(); |
| assertEquals(v, i); |
| } |
| for (int i = 0; i < n; i++) { //read from BB |
| long v = bb.getLong(i * 8); |
| assertEquals(v, i); |
| } |
| Buffer buf1 = Buffer.wrap(bb); |
| for (int i = 0; i < n; i++) { //read from wrapped bb RO |
| long v = buf1.getLong(); |
| assertEquals(v, i); |
| } |
| //convert to RO |
| Buffer buf = wbuf; |
| buf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| long v = buf.getLong(); |
| assertEquals(v, i); |
| } |
| } |
| |
| @Test |
| public void checkByteBufBigEndianOrder() { |
| int n = 1024; //longs |
| ByteBuffer bb = ByteBuffer.allocate(n * 8); |
| bb.order(ByteOrder.BIG_ENDIAN); |
| Buffer buf = Buffer.wrap(bb); |
| assertEquals(buf.getTypeByteOrder(), ByteOrder.BIG_ENDIAN); |
| } |
| |
| @Test |
| public void checkReadOnlyHeapByteBuffer() { |
| ByteBuffer bb = ByteBuffer.allocate(128); |
| bb.order(ByteOrder.nativeOrder()); |
| for (int i = 0; i < 128; i++) { bb.put(i, (byte)i); } |
| |
| bb.position(64); |
| ByteBuffer slice = bb.slice().asReadOnlyBuffer(); |
| slice.order(ByteOrder.nativeOrder()); |
| |
| Buffer buf = Buffer.wrap(slice); |
| for (int i = 0; i < 64; i++) { |
| assertEquals(buf.getByte(), 64 + i); |
| } |
| buf.toHexString("slice", 0, slice.capacity()); |
| //println(s); |
| } |
| |
| @Test |
| public void checkPutGetArraysHeap() { |
| int n = 1024; //longs |
| long[] arr = new long[n]; |
| for (int i = 0; i < n; i++) { arr[i] = i; } |
| |
| WritableBuffer wbuf = WritableMemory.allocate(n * 8).asWritableBuffer(); |
| wbuf.putLongArray(arr, 0, n); |
| long[] arr2 = new long[n]; |
| wbuf.resetPosition(); |
| wbuf.getLongArray(arr2, 0, n); |
| for (int i = 0; i < n; i++) { |
| assertEquals(arr2[i], i); |
| } |
| } |
| |
| @Test |
| public void checkRORegions() { |
| int n = 16; |
| int n2 = n / 2; |
| long[] arr = new long[n]; |
| for (int i = 0; i < n; i++) { arr[i] = i; } |
| |
| Buffer buf = Memory.wrap(arr).asBuffer(); |
| buf.setPosition(n2 * 8); |
| Buffer reg = buf.region(); |
| for (int i = 0; i < n2; i++) { |
| long v = reg.getLong(); |
| assertEquals(v, i + n2); |
| //println("" + v); |
| } |
| } |
| |
| @Test |
| public void checkWRegions() { |
| int n = 16; |
| int n2 = n / 2; |
| long[] arr = new long[n]; |
| for (int i = 0; i < n; i++) { arr[i] = i; } |
| WritableBuffer wbuf = WritableMemory.writableWrap(arr).asWritableBuffer(); |
| for (int i = 0; i < n; i++) { |
| assertEquals(wbuf.getLong(), i); //write all |
| //println("" + wmem.getLong(i * 8)); |
| } |
| //println(""); |
| wbuf.setPosition(n2 * 8); |
| WritableBuffer reg = wbuf.writableRegion(); |
| for (int i = 0; i < n2; i++) { reg.putLong(i); } //rewrite top half |
| wbuf.resetPosition(); |
| for (int i = 0; i < n; i++) { |
| assertEquals(wbuf.getLong(), i % 8); |
| //println("" + wmem.getLong(i * 8)); |
| } |
| } |
| |
| @Test(expectedExceptions = AssertionError.class) |
| public void checkParentUseAfterFree() throws Exception { |
| int bytes = 64 * 8; |
| WritableHandle wh = WritableMemory.allocateDirect(bytes); |
| WritableMemory wmem = wh.getWritable(); |
| WritableBuffer wbuf = wmem.asWritableBuffer(); |
| wh.close(); |
| //with -ea assert: Memory not valid. |
| //with -da sometimes segfaults, sometimes passes! |
| wbuf.getLong(); |
| } |
| |
| @Test(expectedExceptions = AssertionError.class) |
| public void checkRegionUseAfterFree() throws Exception { |
| int bytes = 64; |
| WritableHandle wh = WritableMemory.allocateDirect(bytes); |
| Memory wmem = wh.get(); |
| |
| Buffer reg = wmem.asBuffer().region(); |
| wh.close(); |
| //with -ea assert: Memory not valid. |
| //with -da sometimes segfaults, sometimes passes! |
| reg.getByte(); |
| } |
| |
| @Test(expectedExceptions = AssertionError.class) |
| public void checkBaseBufferInvariants() { |
| WritableBuffer wbuf = WritableMemory.allocate(64).asWritableBuffer(); |
| wbuf.setStartPositionEnd(1, 0, 2); //out of order |
| } |
| |
| |
| @Test |
| public void printlnTest() { |
| println("PRINTING: "+this.getClass().getName()); |
| } |
| |
| /** |
| * @param s String to print |
| */ |
| static void println(final String s) { |
| //System.out.println(s); |
| } |
| |
| } |