content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.security.authentication;
  
  import static org.junit.Assert.assertTrue;
  
  import alluxio.security.authentication.plain.CustomAuthenticationProvider;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  
  import javax.security.sasl.AuthenticationException;
  
  /**
   * Tests the {@link CustomAuthenticationProvider} class.
   */
  public final class CustomAuthenticationProviderTest {
  
    /**
     * The exception expected to be thrown.
     */
    @Rule
    public ExpectedException mThrown = ExpectedException.none();
  
    /**
     * Tests the {@link CustomAuthenticationProvider#CustomAuthenticationProvider(Class)}
     * constructor to throw an exception when the class is not a provider.
     */
    @Test
    public void classNotProvider() {
      mThrown.expect(RuntimeException.class);
      // Java 11 will add "class" prefix before the class names
      // the following messages support both java 8 and java 11
      mThrown.expectMessage("alluxio.security.authentication.CustomAuthenticationProviderTest "
          + "cannot be cast to ");
      mThrown.expectMessage("alluxio.security.authentication.AuthenticationProvider");
      new CustomAuthenticationProvider(CustomAuthenticationProviderTest.class);
    }
  
    /**
     * Tests the {@link CustomAuthenticationProvider#getCustomProvider()} method.
     */
    @Test
    public void mockCustomProvider() {
      CustomAuthenticationProvider provider =
          new CustomAuthenticationProvider(MockAuthenticationProvider.class);
      assertTrue(provider.getCustomProvider() instanceof MockAuthenticationProvider);
    }
  
    /**
     * An {@link AuthenticationProvider} to use as a mock.
     */
    public static class MockAuthenticationProvider implements AuthenticationProvider {
      @Override
      public void authenticate(String user, String password) throws AuthenticationException {
        // noop
      }
    }
  }
  