content: package org.apache.ambari.server.topology.validators;
  
  /*
   * 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.
   */
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Set;
  
  import org.apache.ambari.server.controller.internal.Stack;
  import org.apache.ambari.server.topology.Blueprint;
  import org.apache.ambari.server.topology.ClusterTopology;
  import org.apache.ambari.server.topology.Configuration;
  import org.apache.ambari.server.topology.InvalidTopologyException;
  import org.easymock.EasyMock;
  import org.easymock.EasyMockRule;
  import org.easymock.EasyMockSupport;
  import org.easymock.Mock;
  import org.easymock.TestSubject;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  
  import nl.jqno.equalsverifier.EqualsVerifier;
  import nl.jqno.equalsverifier.Warning;
  
  public class ClusterConfigTypeValidatorTest extends EasyMockSupport {
  
    @Rule
    public EasyMockRule mocks = new EasyMockRule(this);
  
    @Mock
    private Configuration clusterConfigurationMock;
  
    @Mock
    private Blueprint blueprintMock;
  
    @Mock
    private Stack stackMock;
  
    @Mock
    private ClusterTopology clusterTopologyMock;
  
    private Set<String> clusterRequestConfigTypes;
  
    @TestSubject
    private ClusterConfigTypeValidator clusterConfigTypeValidator = new ClusterConfigTypeValidator();
  
    @Before
    public void before() {
      EasyMock.expect(clusterTopologyMock.getConfiguration()).andReturn(clusterConfigurationMock).anyTimes();
  
      EasyMock.expect(clusterTopologyMock.getBlueprint()).andReturn(blueprintMock).anyTimes();
      EasyMock.expect(blueprintMock.getStack()).andReturn(stackMock).anyTimes();
    }
  
    @After
    public void after() {
      resetAll();
    }
  
  
    @Test
    public void testShouldValidationPassWhenNoConfigTypesSpecifiedInCCTemplate() throws Exception {
      // GIVEN
      clusterRequestConfigTypes = Collections.emptySet();
      EasyMock.expect(clusterConfigurationMock.getAllConfigTypes()).andReturn(clusterRequestConfigTypes).anyTimes();
  
      replayAll();
  
      // WHEN
      clusterConfigTypeValidator.validate(clusterTopologyMock);
  
      // THEN
    }
  
  
    @Test
    public void testShouldValidationPassWhenAllConfigTypesAreValid() throws Exception {
      // GIVEN
      // all the config types are OK
      clusterRequestConfigTypes = new HashSet<>(Arrays.asList("core-site", "yarn-site"));
      EasyMock.expect(clusterConfigurationMock.getAllConfigTypes()).andReturn(clusterRequestConfigTypes).anyTimes();
  
      EasyMock.expect(blueprintMock.getServices()).andReturn(new HashSet<>(Arrays.asList("YARN", "HDFS")));
  
      EasyMock.expect(stackMock.getConfigurationTypes("HDFS")).andReturn(
              Collections.singletonList("core-site"));
      EasyMock.expect(stackMock.getConfigurationTypes("YARN")).andReturn(
              Collections.singletonList("yarn-site"));
  
      replayAll();
  
      // WHEN
      clusterConfigTypeValidator.validate(clusterTopologyMock);
  
      // THEN
      // Exception is thrown
  
    }
  
    @Test(expected = InvalidTopologyException.class)
    public void testShouldValidationFailWhenInvalidConfigGroupsSpecifiedInCCTemplate() throws Exception {
      // GIVEN
  
      // the config type that is not present in the stack definition for services
      clusterRequestConfigTypes = new HashSet<>(Collections.singletonList("oozie-site"));
      EasyMock.expect(clusterConfigurationMock.getAllConfigTypes()).andReturn(clusterRequestConfigTypes).anyTimes();
  
      EasyMock.expect(blueprintMock.getServices()).andReturn(new HashSet<>(Arrays.asList("YARN", "HDFS")));
      EasyMock.expect(stackMock.getConfigurationTypes("HDFS")).andReturn(
              Collections.singletonList("core-site"));
      EasyMock.expect(stackMock.getConfigurationTypes("YARN")).andReturn(
              Collections.singletonList("yarn-site"));
  
      replayAll();
  
      // WHEN
      clusterConfigTypeValidator.validate(clusterTopologyMock);
  
      // THEN
      // Exception is thrown
    }
  
  
    @Test(expected = InvalidTopologyException.class)
    public void testShouldValidationFailWhenThereIsAnInvalidConfigGroupProvided() throws Exception {
      // GIVEN
      // oozzie-type is wrong!
      clusterRequestConfigTypes = new HashSet<>(Arrays.asList("core-site", "yarn-site", "oozie-site"));
      EasyMock.expect(clusterConfigurationMock.getAllConfigTypes()).andReturn(clusterRequestConfigTypes).anyTimes();
  
      EasyMock.expect(blueprintMock.getServices()).andReturn(new HashSet<>(Arrays.asList("YARN", "HDFS")));
  
      EasyMock.expect(stackMock.getConfigurationTypes("HDFS")).andReturn(
              Collections.singletonList("core-site"));
      EasyMock.expect(stackMock.getConfigurationTypes("YARN")).andReturn(
              Collections.singletonList("yarn-site"));
  
      replayAll();
  
      // WHEN
      clusterConfigTypeValidator.validate(clusterTopologyMock);
  
      // THEN
      // Exception is thrown
    }
  
    @Test
    public void testEquals() throws Exception {
      EqualsVerifier.forClass(ClusterConfigTypeValidator.class).usingGetClass()
              .suppress(Warning.INHERITED_DIRECTLY_FROM_OBJECT).verify();
    }
  }
  