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.kafka.clients.consumer;
  
  import java.time.Duration;
  
  import org.hamcrest.core.IsNot;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.core.IsNull.nullValue;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  public class KafkaConsumerTest {
  
      @Mock
      private KafkaConsumer<Object, Object> kafkaConsumer;
  
      @BeforeEach
      public void init() {
          when(kafkaConsumer.poll(Duration.ofSeconds(1))).thenReturn(ConsumerRecords.empty());
      }
  
      @Test
      public void testPollGivenReturnsEmptyConsumerRecordShouldNotBeNull() {
          ConsumerRecords<Object, Object> consumerRecords = kafkaConsumer.poll(Duration.ofSeconds(1));
          assertThat(consumerRecords, IsNot.not(nullValue()));
      }
  
      @Test
      public void testPollGivenReturnsEmptyPartitionsShouldNotBeNull() {
          ConsumerRecords<Object, Object> consumerRecords = kafkaConsumer.poll(Duration.ofSeconds(1));
          assertThat(consumerRecords.partitions(), IsNot.not(nullValue()));
      }
  }
  