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 com.datastax.oss.driver.internal.core.protocol;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import io.netty.channel.ChannelPromise;
  import io.netty.channel.embedded.EmbeddedChannel;
  import org.junit.Before;
  import org.junit.Test;
  
  public class SliceWriteListenerTest {
  
    private final EmbeddedChannel channel = new EmbeddedChannel();
  
    private ChannelPromise framePromise, slicePromise1, slicePromise2, slicePromise3;
  
    @Before
    public void setup() {
      framePromise = channel.newPromise();
      slicePromise1 = channel.newPromise();
      slicePromise2 = channel.newPromise();
      slicePromise3 = channel.newPromise();
  
      ByteBufSegmentBuilder.SliceWriteListener listener =
          new ByteBufSegmentBuilder.SliceWriteListener(
              framePromise, ImmutableList.of(slicePromise1, slicePromise2, slicePromise3));
      slicePromise1.addListener(listener);
      slicePromise2.addListener(listener);
      slicePromise3.addListener(listener);
  
      assertThat(framePromise.isDone()).isFalse();
    }
  
    @Test
    public void should_succeed_frame_if_all_slices_succeed() {
      slicePromise1.setSuccess();
      assertThat(framePromise.isDone()).isFalse();
      slicePromise2.setSuccess();
      assertThat(framePromise.isDone()).isFalse();
      slicePromise3.setSuccess();
  
      assertThat(framePromise.isSuccess()).isTrue();
    }
  
    @Test
    public void should_fail_frame_and_cancel_remaining_slices_if_one_slice_fails() {
      slicePromise1.setSuccess();
      assertThat(framePromise.isDone()).isFalse();
      Exception failure = new Exception("test");
      slicePromise2.setFailure(failure);
  
      assertThat(framePromise.isDone()).isTrue();
      assertThat(framePromise.isSuccess()).isFalse();
      assertThat(framePromise.cause()).isEqualTo(failure);
  
      assertThat(slicePromise3.isCancelled()).isTrue();
    }
  }
  