
package org.apache.ambari.server.checks;

import java.util.HashMap;
import java.util.Map;

import org.apache.ambari.server.controller.PrereqCheckRequest;
import org.apache.ambari.server.state.Cluster;
import org.apache.ambari.server.state.Clusters;
import org.apache.ambari.server.state.SecurityType;
import org.apache.ambari.server.state.Service;
import org.apache.ambari.server.state.stack.PrereqCheckStatus;
import org.apache.ambari.server.state.stack.PrerequisiteCheck;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;

import com.google.inject.Provider;

public class KafkaKerberosCheckTest {
  private final Clusters clusters = Mockito.mock(Clusters.class);

  private final KafkaKerberosCheck kafkaKerberosCheck = new KafkaKerberosCheck();

  @Before
  public void setup() {
    kafkaKerberosCheck.clustersProvider = new Provider<Clusters>() {

      @Override
      public Clusters get() {
        return clusters;
      }
    };
  }

  @Test
  public void testIsApplicable() throws Exception {
    final Cluster cluster = Mockito.mock(Cluster.class);
    final Map<String, Service> services = new HashMap<>();
    final Service service = Mockito.mock(Service.class);

    services.put("KAFKA", service);

    Mockito.when(cluster.getServices()).thenReturn(services);
    Mockito.when(cluster.getClusterId()).thenReturn(1L);
    Mockito.when(clusters.getCluster("cluster")).thenReturn(cluster);

    Assert.assertTrue(kafkaKerberosCheck.isApplicable(new PrereqCheckRequest("cluster")));

    services.remove("KAFKA");
    Assert.assertFalse(kafkaKerberosCheck.isApplicable(new PrereqCheckRequest("cluster")));
  }

  @Test
  public void testPerform() throws Exception {
    final Cluster cluster = Mockito.mock(Cluster.class);
    final Map<String, Service> services = new HashMap<>();
    final Service service = Mockito.mock(Service.class);

    services.put("KAFKA", service);

    Mockito.when(cluster.getServices()).thenReturn(services);
    Mockito.when(cluster.getClusterId()).thenReturn(1L);
    Mockito.when(cluster.getSecurityType()).thenReturn(SecurityType.KERBEROS);
    Mockito.when(clusters.getCluster("cluster")).thenReturn(cluster);

    PrerequisiteCheck check = new PrerequisiteCheck(null, null);

    kafkaKerberosCheck.perform(check, new PrereqCheckRequest("cluster"));
    Assert.assertEquals(PrereqCheckStatus.WARNING, check.getStatus());

    check = new PrerequisiteCheck(null, null);
    Mockito.when(cluster.getSecurityType()).thenReturn(SecurityType.NONE);

    kafkaKerberosCheck.perform(check, new PrereqCheckRequest("cluster"));
    Assert.assertEquals(PrereqCheckStatus.PASS, check.getStatus());
  }
}
