content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * 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
   *
   * https://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.agrona;
  
  import org.agrona.concurrent.UnsafeBuffer;
  import org.junit.jupiter.api.Test;
  
  import java.nio.ByteBuffer;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.*;
  
  class BufferCompareTest
  {
      @Test
      void shouldEqualOnSameTypeAndValue()
      {
          final MutableDirectBuffer lhsBuffer = new ExpandableArrayBuffer();
          final MutableDirectBuffer rhsBuffer = new ExpandableArrayBuffer();
  
          lhsBuffer.putStringUtf8(0, "Hello World");
          rhsBuffer.putStringUtf8(0, "Hello World");
  
          assertThat(lhsBuffer.compareTo(rhsBuffer), is(0));
      }
  
      @Test
      void shouldEqualOnDifferentTypeAndValue()
      {
          final MutableDirectBuffer lhsBuffer = new ExpandableArrayBuffer();
          final MutableDirectBuffer rhsBuffer = new UnsafeBuffer(ByteBuffer.allocateDirect(lhsBuffer.capacity()));
  
          lhsBuffer.putStringUtf8(0, "Hello World");
          rhsBuffer.putStringUtf8(0, "Hello World");
  
          assertThat(lhsBuffer.compareTo(rhsBuffer), is(0));
      }
  
      @Test
      void shouldEqualOnDifferentExpandableTypeAndValue()
      {
          final MutableDirectBuffer lhsBuffer = new ExpandableArrayBuffer();
          final MutableDirectBuffer rhsBuffer = new ExpandableDirectByteBuffer();
  
          lhsBuffer.putStringUtf8(0, "Hello World");
          rhsBuffer.putStringUtf8(0, "Hello World");
  
          assertThat(lhsBuffer.compareTo(rhsBuffer), is(0));
      }
  
      @Test
      void shouldBeGreater()
      {
          final MutableDirectBuffer lhsBuffer = new ExpandableArrayBuffer();
          final MutableDirectBuffer rhsBuffer = new ExpandableArrayBuffer();
  
          lhsBuffer.putStringUtf8(0, "123");
          rhsBuffer.putStringUtf8(0, "124");
  
          assertThat(lhsBuffer.compareTo(rhsBuffer), lessThan(0));
      }
  
      @Test
      void shouldBeLess()
      {
          final MutableDirectBuffer lhsBuffer = new ExpandableArrayBuffer();
          final MutableDirectBuffer rhsBuffer = new ExpandableArrayBuffer();
  
          lhsBuffer.putStringUtf8(0, "124");
          rhsBuffer.putStringUtf8(0, "123");
  
          assertThat(lhsBuffer.compareTo(rhsBuffer), greaterThan(0));
      }
  }
  