hadoop-hdds/common/src/test/java/org/apache/hadoop/hdds/scm/exceptions/TestSCMExceptionResultCodes.java

/**
 * 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.hadoop.hdds.scm.exceptions;

import org.apache.hadoop.hdds.scm.exceptions.SCMException.ResultCodes;
import org.apache.hadoop.hdds.protocol.proto.
    ScmBlockLocationProtocolProtos.Status;
import org.junit.Assert;
import org.junit.Test;

/**
 * Test Result code mappping between SCMException and the protobuf definitions.
 */
public class TestSCMExceptionResultCodes {

  @Test
  public void codeMapping() {
    // ResultCode = SCMException definition
    // Status = protobuf definition
    Assert.assertEquals(ResultCodes.values().length, Status.values().length);
    for (int i = 0; i < ResultCodes.values().length; i++) {
      ResultCodes codeValue = ResultCodes.values()[i];
      Status protoBufValue = Status.values()[i];
      Assert.assertTrue(String
          .format("Protobuf/Enum constant name mismatch %s %s", codeValue,
              protoBufValue), sameName(codeValue.name(), protoBufValue.name()));
      ResultCodes converted = ResultCodes.values()[protoBufValue.ordinal()];
      Assert.assertEquals(codeValue, converted);
    }
  }

  private boolean sameName(String codeValue, String protoBufValue) {
    return codeValue.equals(protoBufValue);
  }

}