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;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import alluxio.conf.AlluxioConfiguration;
  import alluxio.conf.Configuration;
  import alluxio.underfs.UnderFileSystemConfiguration;
  import alluxio.underfs.UnderFileSystemFactory;
  import alluxio.underfs.UnderFileSystemFactoryRegistry;
  
  import org.junit.Test;
  import org.junit.runners.model.Statement;
  
  /**
   * Unit tests for {@link UnderFileSystemFactoryRegistryRule}.
   */
  public class UnderFileSystemFactoryRegistryRuleTest {
    private static final String UFS_PATH = "test://foo";
  
    private UnderFileSystemFactory mUnderFileSystemFactory;
    private final AlluxioConfiguration mConfiguration = Configuration.global();
  
    private final Statement mStatement = new Statement() {
      @Override
      public void evaluate() throws Throwable {
        assertEquals(mUnderFileSystemFactory, UnderFileSystemFactoryRegistry
            .find(UFS_PATH, mConfiguration));
      }
    };
  
    @Test
    public void testUnderFileSystemFactoryRegistryRule() throws Throwable {
      mUnderFileSystemFactory = mock(UnderFileSystemFactory.class);
      when(
          mUnderFileSystemFactory.supportsPath(eq(UFS_PATH), any(UnderFileSystemConfiguration.class)))
              .thenReturn(true);
      // check before
      assertNull(UnderFileSystemFactoryRegistry.find(UFS_PATH, mConfiguration));
      new UnderFileSystemFactoryRegistryRule(mUnderFileSystemFactory)
          .apply(mStatement, null).evaluate();
      // check after
      assertNull(UnderFileSystemFactoryRegistry.find(UFS_PATH, mConfiguration));
    }
  }
  