content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio;
  
  import alluxio.conf.Configuration;
  import alluxio.exception.status.AlluxioStatusException;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import io.grpc.Status;
  import org.junit.Assert;
  import org.junit.Test;
  
  import javax.ws.rs.core.Response;
  
  /**
   * Unit tests for {@link RestUtils}.
   */
  public class RestUtilsTest {
  
    @Test
    public void voidOkResponse() {
      Response response = RestUtils.call(new RestUtils.RestCallable<Void>() {
        @Override
        public Void call() throws Exception {
          return null;
        }
      }, Configuration.global());
      Assert.assertEquals(Response.Status.OK.getStatusCode(), response.getStatus());
      Assert.assertNull(response.getEntity());
    }
  
    @Test
    public void stringOkResponse() throws Exception {
      final String message = "ok";
      Response response = RestUtils.call(new RestUtils.RestCallable<String>() {
        @Override
        public String call() throws Exception {
          return message;
        }
      }, Configuration.global());
      Assert.assertEquals(Response.Status.OK.getStatusCode(), response.getStatus());
      ObjectMapper mapper = new ObjectMapper();
      String jsonMessage = mapper.writeValueAsString(message);
      Assert.assertEquals(jsonMessage, response.getEntity());
    }
  
    @Test
    public void objectOkResponse() throws Exception {
      class Obj {
        private final int mStatus;
        private final String mMessage;
  
        Obj(int status, String message) {
          mStatus = status;
          mMessage = message;
        }
  
        public int getStatus() {
          return mStatus;
        }
  
        public String getMessage() {
          return mMessage;
        }
      }
  
      int status = 200;
      String message = "OK";
      final Obj object = new Obj(status, message);
      Response response = RestUtils.call(new RestUtils.RestCallable<Obj>() {
        @Override
        public Obj call() throws Exception {
          return object;
        }
      }, Configuration.global());
      Assert.assertEquals(Response.Status.OK.getStatusCode(), response.getStatus());
      Obj obj = (Obj) response.getEntity();
      Assert.assertEquals(status, obj.getStatus());
      Assert.assertEquals(message, obj.getMessage());
    }
  
    @Test
    public void errorResponse() throws Exception {
      final Status status = Status.ALREADY_EXISTS;
      final String message = "error message";
      Response response = RestUtils.call(new RestUtils.RestCallable<Void>() {
        @Override
        public Void call() throws Exception {
          throw new AlluxioStatusException(status.withDescription(message));
        }
      }, Configuration.global());
      Assert.assertEquals(Response.Status.INTERNAL_SERVER_ERROR.getStatusCode(),
          response.getStatus());
      RestUtils.ErrorResponse errorResponse = (RestUtils.ErrorResponse) response.getEntity();
      Assert.assertEquals(status.getCode(), errorResponse.getStatusCode());
      Assert.assertEquals(message, errorResponse.getMessage());
    }
  }
  