helix-core/src/test/java/org/apache/helix/tools/ClusterVerifiers/TestStrictMatchExternalViewVerifier.java

package org.apache.helix.tools.ClusterVerifiers;

/*
 * 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.
 */

import java.util.HashSet;
import java.util.List;
import java.util.Map;

import org.apache.helix.model.BuiltInStateModelDefinitions;
import org.apache.helix.util.HelixUtil;
import org.apache.helix.util.TestInputLoader;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class TestStrictMatchExternalViewVerifier {

  @Test(dataProvider = "TestComputeIdealMappingInput")
  public void testComputeIdealMapping(String comment, String stateModelName,
      List<String> preferenceList, List<String> liveAndEnabledInstances,
      Map<String, String> expectedIdealMapping) {
    System.out.println("Test case comment: " + comment);
    Map<String, String> idealMapping = HelixUtil.computeIdealMapping(preferenceList,
        BuiltInStateModelDefinitions.valueOf(stateModelName).getStateModelDefinition(),
        new HashSet<>(liveAndEnabledInstances));

    Assert.assertTrue(idealMapping.equals(expectedIdealMapping));
  }

  @DataProvider(name = "TestComputeIdealMappingInput")
  public Object[][] loadTestComputeIdealMappingInput() {
    final String[] params = { "comment", "stateModel", "preferenceList", "liveAndEnabledInstances",
        "expectedBestPossibleStateMap"
    };
    return TestInputLoader
        .loadTestInputs("TestStrictMatchExternalViewVerifier.ComputeIdealMapping.json", params);
  }
}