| /* |
| * 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.utils; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.Arrays; |
| |
| import org.junit.Test; |
| |
| import org.quicktheories.core.Gen; |
| import org.quicktheories.generators.SourceDSL; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| import static org.quicktheories.QuickTheory.qt; |
| |
| public class ByteArrayUtilTest |
| { |
| private static final ByteOrder ORDER = ByteOrder.BIG_ENDIAN; |
| |
| @Test |
| public void putGetBoolean() |
| { |
| byte[] bytes = new byte[10]; |
| for (int i = 0; i < bytes.length; i++) |
| { |
| for (boolean b : Arrays.asList(Boolean.TRUE, Boolean.FALSE)) |
| { |
| ByteArrayUtil.putBoolean(bytes, i, b); |
| assertThat(ByteArrayUtil.getBoolean(bytes, i)) |
| .as("get(put(b)) == b") |
| .isEqualTo(b); |
| } |
| } |
| } |
| |
| @Test |
| public void putBooleanArrayTooSmall() |
| { |
| putArrayToSmall(1, bytes -> ByteArrayUtil.putBoolean(bytes, 0, true)); |
| } |
| |
| @Test |
| public void putBooleanArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putBoolean(bytes, bytes.length + 10, true)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| @Test |
| public void putGetShort() |
| { |
| Gen<Short> gen = SourceDSL.integers().between(Short.MIN_VALUE, Short.MAX_VALUE).map(Integer::shortValue); |
| byte[] bytes = new byte[Short.BYTES + 1]; |
| ByteBuffer buffer = ByteBuffer.wrap(bytes).order(ORDER); |
| qt().forAll(gen).checkAssert(jnum -> { |
| short value = jnum.shortValue(); |
| ByteArrayUtil.putShort(bytes, 1, value); |
| assertThat(ByteArrayUtil.getShort(bytes, 1)) |
| .as("get(put(b)) == b") |
| .isEqualTo(value) |
| .isEqualTo(buffer.getShort(1)); |
| }); |
| } |
| |
| @Test |
| public void putShortArrayTooSmall() |
| { |
| putArrayToSmall(Short.BYTES, bytes -> ByteArrayUtil.putShort(bytes, 0, (short) 42)); |
| } |
| |
| @Test |
| public void putShortArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putInt(bytes, bytes.length + 10, (short) 42)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| @Test |
| public void putGetInt() |
| { |
| Gen<Integer> gen = SourceDSL.integers().all(); |
| byte[] bytes = new byte[Integer.BYTES + 1]; |
| ByteBuffer buffer = ByteBuffer.wrap(bytes).order(ORDER); |
| qt().forAll(gen).checkAssert(jnum -> { |
| int value = jnum.intValue(); |
| ByteArrayUtil.putInt(bytes, 1, value); |
| assertThat(ByteArrayUtil.getInt(bytes, 1)) |
| .as("get(put(b)) == b") |
| .isEqualTo(value) |
| .isEqualTo(buffer.getInt(1)); |
| }); |
| } |
| |
| @Test |
| public void putIntArrayTooSmall() |
| { |
| putArrayToSmall(Integer.BYTES, bytes -> ByteArrayUtil.putInt(bytes, 0, 42)); |
| } |
| |
| @Test |
| public void putIntArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putInt(bytes, bytes.length + 10, 42)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| @Test |
| public void putGetLong() |
| { |
| Gen<Long> gen = SourceDSL.longs().all(); |
| byte[] bytes = new byte[Long.BYTES + 1]; |
| ByteBuffer buffer = ByteBuffer.wrap(bytes).order(ORDER); |
| qt().forAll(gen).checkAssert(jnum -> { |
| long value = jnum.longValue(); |
| ByteArrayUtil.putLong(bytes, 1, value); |
| assertThat(ByteArrayUtil.getLong(bytes, 1)) |
| .as("get(put(b)) == b") |
| .isEqualTo(value) |
| .isEqualTo(buffer.getLong(1)); |
| }); |
| } |
| |
| @Test |
| public void putLongArrayTooSmall() |
| { |
| putArrayToSmall(Long.BYTES, bytes -> ByteArrayUtil.putLong(bytes, 0, 42L)); |
| } |
| |
| @Test |
| public void putLongArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putLong(bytes, bytes.length + 10, 42)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| @Test |
| public void putGetFloat() |
| { |
| Gen<Float> gen = SourceDSL.floats().any(); |
| byte[] bytes = new byte[Float.BYTES + 1]; |
| ByteBuffer buffer = ByteBuffer.wrap(bytes).order(ORDER); |
| qt().forAll(gen).checkAssert(jnum -> { |
| float value = jnum.floatValue(); |
| ByteArrayUtil.putFloat(bytes, 1, value); |
| assertThat(ByteArrayUtil.getFloat(bytes, 1)) |
| .as("get(put(b)) == b") |
| .isEqualTo(value) |
| .isEqualTo(buffer.getFloat(1)); |
| }); |
| } |
| |
| @Test |
| public void putFloatArrayTooSmall() |
| { |
| putArrayToSmall(Float.BYTES, bytes -> ByteArrayUtil.putFloat(bytes, 0, 42f)); |
| } |
| |
| @Test |
| public void putFloatArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putFloat(bytes, bytes.length + 10, 42.0f)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| @Test |
| public void putGetDouble() |
| { |
| Gen<Double> gen = SourceDSL.doubles().any(); |
| byte[] bytes = new byte[Double.BYTES + 1]; |
| ByteBuffer buffer = ByteBuffer.wrap(bytes).order(ORDER); |
| qt().forAll(gen).checkAssert(jnum -> { |
| double value = jnum.doubleValue(); |
| ByteArrayUtil.putDouble(bytes, 1, value); |
| assertThat(ByteArrayUtil.getDouble(bytes, 1)) |
| .as("get(put(b)) == b") |
| .isEqualTo(value) |
| .isEqualTo(buffer.getDouble(1)); |
| }); |
| } |
| |
| @Test |
| public void putDoubleArrayTooSmall() |
| { |
| putArrayToSmall(Double.BYTES, bytes -> ByteArrayUtil.putDouble(bytes, 0, 42.0)); |
| } |
| |
| @Test |
| public void putDoubleArrayOutOfBounds() |
| { |
| byte[] bytes = new byte[16]; |
| assertThatThrownBy(() -> ByteArrayUtil.putDouble(bytes, bytes.length + 10, 42.0)) |
| .isInstanceOf(IndexOutOfBoundsException.class); |
| } |
| |
| private static void putArrayToSmall(int targetBytes, FailingConsumer<byte[]> fn) |
| { |
| for (int i = 0; i < targetBytes - 1; i++) |
| { |
| byte[] bytes = new byte[i]; |
| assertThatThrownBy(() -> fn.doAccept(bytes)).isInstanceOf(IndexOutOfBoundsException.class); |
| assertThat(bytes).isEqualTo(new byte[i]); |
| } |
| } |
| } |