content: /*
   * 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]);
          }
      }
  }
  