content: /*
   * 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.apache.ambari.server.ldap.service.ads.detectors;
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.directory.api.ldap.model.entry.DefaultAttribute;
  import org.apache.directory.api.ldap.model.entry.DefaultEntry;
  import org.apache.directory.api.ldap.model.entry.Entry;
  import org.apache.directory.api.ldap.model.entry.Value;
  import org.easymock.TestSubject;
  import org.junit.Assert;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.common.collect.Lists;
  
  /**
   * Test suite for the attribute detector implementation
   */
  public class GroupMemberAttrDetectorTest {
  
    private static final Logger LOG = LoggerFactory.getLogger(GroupMemberAttrDetector.class);
  
    @TestSubject
    GroupMemberAttrDetector groupMemberAttrDetector = new GroupMemberAttrDetector();
  
    @Test
    public void testShouldDetectAttributeBasedOnOccurrence() throws Exception {
      // GIVEN
      // Mimic a sample set of entries where group membership attributes  are different
      List<Entry> sampleEntryList = Lists.newArrayList();
  
      sampleEntryList.addAll(getSampleEntryList(GroupMemberAttrDetector.GroupMemberAttr.MEMBER_UID, 2));
  
      // this is the expected property to be detected as in the sample set the most entries have it
      sampleEntryList.addAll(getSampleEntryList(GroupMemberAttrDetector.GroupMemberAttr.UNIQUE_MEMBER, 7));
      sampleEntryList.addAll(getSampleEntryList(GroupMemberAttrDetector.GroupMemberAttr.MEMBER, 5));
  
      // WHEN
      for (Entry entry : sampleEntryList) {
        groupMemberAttrDetector.collect(entry);
      }
  
      // The most frequently encountered attribute will be selected
      Map<String, String> detectedAttributeMap = groupMemberAttrDetector.detect();
  
      // THEN
      Assert.assertEquals(1, detectedAttributeMap.size());
      Map.Entry<String, String> selectedEntry = detectedAttributeMap.entrySet().iterator().next();
  
      Assert.assertEquals("The selected configuration property is not the expected one", groupMemberAttrDetector.detectedProperty(), selectedEntry.getKey());
      Assert.assertEquals("The selected configuration property value is not the expected one", GroupMemberAttrDetector.GroupMemberAttr.UNIQUE_MEMBER.attrName(), selectedEntry.getValue());
  
  
    }
  
    @Test
    public void testShouldDetectorPassWhenEmptySampleSetProvided() throws Exception {
      // GIVEN
      List<Entry> sampleEntryList = Lists.newArrayList();
  
      // WHEN
      // WHEN
      for (Entry entry : sampleEntryList) {
        groupMemberAttrDetector.collect(entry);
      }
  
      Map<String, String> detectedAttributeMap = groupMemberAttrDetector.detect();
      // THEN
      Assert.assertEquals(1, detectedAttributeMap.size());
      Map.Entry<String, String> selectedEntry = detectedAttributeMap.entrySet().iterator().next();
  
      Assert.assertEquals("The selected configuration property is not the expected one", groupMemberAttrDetector.detectedProperty(), selectedEntry.getKey());
      Assert.assertEquals("The selected configuration property value is not the expected one", "N/A", selectedEntry.getValue());
  
    }
  
    private List<Entry> getSampleEntryList(GroupMemberAttrDetector.GroupMemberAttr member, int count) {
      List<Entry> entryList = Lists.newArrayList();
      for (int i = 0; i < count; i++) {
        Entry entry = new DefaultEntry();
        try {
          entry.setDn("dn=" + member.name() + "-" + i);
          entry.add(new DefaultAttribute(member.attrName(), new Value("xxx")));
          entryList.add(entry);
        } catch (Exception e) {
          LOG.error(e.getMessage());
        }
      }
      return entryList;
    }
  }