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.underfs;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import alluxio.ConfigurationRule;
  import alluxio.conf.Configuration;
  import alluxio.conf.InstancedConfiguration;
  import alluxio.conf.PropertyKey;
  
  import com.google.common.collect.ImmutableMap;
  import org.junit.Before;
  import org.junit.Test;
  
  import java.io.Closeable;
  import java.util.Random;
  
  public final class UnderFileSystemConfigurationTest {
  
    private InstancedConfiguration mConfiguration;
  
    @Before
    public void before() {
      mConfiguration = Configuration.copyGlobal();
    }
  
    @Test
    public void getValueWhenGlobalConfHasProperty() throws Exception {
      // Set property in global configuration
      try (Closeable c = new ConfigurationRule(PropertyKey.S3A_ACCESS_KEY, "bar", mConfiguration)
          .toResource()) {
        Random random = new Random();
        boolean readOnly = random.nextBoolean();
        UnderFileSystemConfiguration conf =
            new UnderFileSystemConfiguration(Configuration.global(), readOnly);
        assertEquals(readOnly, conf.isReadOnly());
        assertEquals("bar", mConfiguration.get(PropertyKey.S3A_ACCESS_KEY));
        conf = new UnderFileSystemConfiguration(Configuration.global(), readOnly)
            .createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_ACCESS_KEY.toString(), "foo"));
        assertEquals(readOnly, conf.isReadOnly());
        assertEquals("foo", conf.get(PropertyKey.S3A_ACCESS_KEY));
      }
    }
  
    @Test
    public void getValueWhenGlobalConfOverridesPropertyWithDefaultValue() throws Exception {
      // Set property in global configuration
      try (Closeable c =
          new ConfigurationRule(PropertyKey.UNDERFS_LISTING_LENGTH, 2000, mConfiguration)
              .toResource()) {
        UnderFileSystemConfiguration conf = UnderFileSystemConfiguration.defaults(mConfiguration);
        assertEquals(2000, conf.getInt(PropertyKey.UNDERFS_LISTING_LENGTH));
      }
    }
  
    @Test
    public void getValueWhenGlobalConfHasNotProperty() throws Exception {
      // Set property in global configuration
      try (Closeable c = new ConfigurationRule(PropertyKey.S3A_ACCESS_KEY, null, mConfiguration)
          .toResource()) {
        Random random = new Random();
        boolean readOnly = random.nextBoolean();
        UnderFileSystemConfiguration conf =
            new UnderFileSystemConfiguration(mConfiguration, readOnly);
        try {
          conf.get(PropertyKey.S3A_ACCESS_KEY);
          fail("this key should not exist");
        } catch (Exception e) {
          // expect to pass
        }
        UnderFileSystemConfiguration conf2 =
            conf.createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_ACCESS_KEY.toString(),
                "foo"));
        assertEquals(readOnly, conf2.isReadOnly());
        assertEquals("foo", conf2.get(PropertyKey.S3A_ACCESS_KEY));
      }
    }
  
    @Test
    public void containsWhenGlobalConfHasProperty() throws Exception {
      // Unset property in global configuration
      try (Closeable c = new ConfigurationRule(PropertyKey.S3A_ACCESS_KEY, "bar", mConfiguration)
          .toResource()) {
        Random random = new Random();
        boolean readOnly = random.nextBoolean();
        UnderFileSystemConfiguration conf =
            new UnderFileSystemConfiguration(mConfiguration, readOnly);
        assertTrue(conf.isSet(PropertyKey.S3A_ACCESS_KEY));
        conf.createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_ACCESS_KEY.toString(), "foo"));
        assertEquals(readOnly, conf.isReadOnly());
        assertTrue(conf.isSet(PropertyKey.S3A_ACCESS_KEY));
      }
    }
  
    @Test
    public void containsWhenGlobalConfHasNotProperty() throws Exception {
      // Unset property in global configuration
      try (Closeable c = new ConfigurationRule(PropertyKey.S3A_ACCESS_KEY, null, mConfiguration)
          .toResource()) {
        Random random = new Random();
        boolean readOnly = random.nextBoolean();
        UnderFileSystemConfiguration conf =
            new UnderFileSystemConfiguration(mConfiguration, readOnly);
        assertFalse(conf.isSet(PropertyKey.S3A_ACCESS_KEY));
        UnderFileSystemConfiguration conf2 =
            conf.createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_ACCESS_KEY.toString(),
                "foo"));
        assertEquals(readOnly, conf2.isReadOnly());
        assertTrue(conf2.isSet(PropertyKey.S3A_ACCESS_KEY));
      }
    }
  
    @Test
    public void setUserSpecifiedConfRepeatedly() {
      UnderFileSystemConfiguration conf = UnderFileSystemConfiguration.defaults(mConfiguration);
      UnderFileSystemConfiguration conf2 =
          conf.createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_ACCESS_KEY.toString(),
              "foo"));
      assertEquals("foo", conf2.get(PropertyKey.S3A_ACCESS_KEY));
      assertEquals(1, conf2.getMountSpecificConf().size());
      conf2 = conf.createMountSpecificConf(ImmutableMap.of(PropertyKey.S3A_SECRET_KEY.toString(),
          "bar"));
      assertEquals("bar", conf2.get(PropertyKey.S3A_SECRET_KEY));
      assertFalse(conf2.isSet(PropertyKey.S3A_ACCESS_KEY));
      assertEquals(1, conf2.getMountSpecificConf().size());
      assertEquals(0, conf.getMountSpecificConf().size());
    }
  }
  