content: /*
   * Copyright 2017-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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
   *
   *     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.activiti.cloud.services.messages.core.router;
  
  import static org.activiti.cloud.services.messages.core.integration.MessageEventHeaders.MESSAGE_EVENT_OUTPUT_DESTINATION;
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  import static org.mockito.BDDMockito.given;
  import static org.mockito.Mockito.mock;
  
  import java.util.Collection;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.integration.mapping.MessageMappingException;
  import org.springframework.integration.support.MessageBuilder;
  import org.springframework.messaging.Message;
  import org.springframework.messaging.MessageChannel;
  import org.springframework.messaging.core.DestinationResolver;
  
  @ExtendWith(MockitoExtension.class)
  public class CommandConsumerMessageRouterTest {
  
      @InjectMocks
      private CommandConsumerMessageRouter messageRouter;
  
      @Mock
      private DestinationResolver<MessageChannel> destinationResolver;
  
      @Test
      public void should_returnResultOfDestinationResolver_when_headerHasServiceFullName() {
          //given
          final String outputDestination = "messageConnectorOutput";
          final Message<String> message = MessageBuilder
              .withPayload("any")
              .setHeader(MESSAGE_EVENT_OUTPUT_DESTINATION, outputDestination)
              .build();
  
          final MessageChannel messageChannel = mock(MessageChannel.class);
          given(destinationResolver.resolveDestination(outputDestination)).willReturn(messageChannel);
  
          //when
          final Collection<MessageChannel> channels = messageRouter.determineTargetChannels(message);
  
          //then
          assertThat(channels).containsExactly(messageChannel);
      }
  
      @Test
      public void should_throwException_when_headerHasNotServiceFullName() {
          //given
          final Message<String> messageWithoutHeaders = MessageBuilder.withPayload("any").build();
  
          //then
          assertThatExceptionOfType(MessageMappingException.class)
              .isThrownBy(() -> messageRouter.determineTargetChannels(messageWithoutHeaders) //when
              )
              .withMessage("Unable to determine target channel for message");
      }
  
      @Test
      public void should_throwException_when_destinationResolverDoesNotFindADestination() {
          //given
          final String outputDestination = "messageConnectorOutput";
          final Message<String> message = MessageBuilder
              .withPayload("any")
              .setHeader(MESSAGE_EVENT_OUTPUT_DESTINATION, outputDestination)
              .build();
  
          given(destinationResolver.resolveDestination(outputDestination)).willReturn(null);
  
          //then
          assertThatExceptionOfType(MessageMappingException.class)
              .isThrownBy(() -> messageRouter.determineTargetChannels(message) //when
              )
              .withMessage("Unable to determine target channel for message");
      }
  }
  