/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.hadoop.hbase.io.crypto;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

import java.security.Key;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.io.crypto.aes.AES;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

@Tag(MiscTests.TAG)
@Tag(SmallTests.TAG)
public class TestKeyProvider {

  @Test
  public void testTestProvider() {
    Configuration conf = HBaseConfiguration.create();
    conf.set(HConstants.CRYPTO_KEYPROVIDER_CONF_KEY, KeyProviderForTesting.class.getName());
    KeyProvider provider = Encryption.getKeyProvider(conf);
    assertNotNull(provider, "Null returned for provider");
    assertThat("Provider is not the expected type", provider,
      instanceOf(KeyProviderForTesting.class));

    Key key = provider.getKey("foo");
    assertNotNull(key, "Test provider did not return a key as expected");
    assertEquals("AES", key.getAlgorithm(), "Test provider did not create a key for AES");
    assertEquals(AES.KEY_LENGTH, key.getEncoded().length,
      "Test provider did not create a key of adequate length");
  }

}
