/*
 * 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.flink.runtime.clusterframework.overlays;

import org.apache.flink.configuration.ConfigConstants;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.SecurityOptions;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.clusterframework.ContainerSpecification;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.File;

import static org.apache.flink.runtime.clusterframework.overlays.KeytabOverlay.TARGET_PATH;
import static org.junit.Assert.assertEquals;

public class KeytabOverlayTest extends ContainerOverlayTestBase {

	@Rule
	public TemporaryFolder tempFolder = new TemporaryFolder();

	@Test
	public void testConfigure() throws Exception {

		File keytab = tempFolder.newFile();

		KeytabOverlay overlay = new KeytabOverlay(keytab);

		ContainerSpecification spec = new ContainerSpecification();
		overlay.configure(spec);

		assertEquals(TARGET_PATH.getPath(), spec.getDynamicConfiguration().getString(SecurityOptions.KERBEROS_LOGIN_KEYTAB));
		checkArtifact(spec, TARGET_PATH);
	}

	@Test
	public void testNoConf() throws Exception {
		KeytabOverlay overlay = new KeytabOverlay((Path) null);

		ContainerSpecification containerSpecification = new ContainerSpecification();
		overlay.configure(containerSpecification);
	}

	@Test
	public void testBuilderFromEnvironment() throws Exception {

		final Configuration conf = new Configuration();
		File keytab = tempFolder.newFile();

		conf.setString(SecurityOptions.KERBEROS_LOGIN_KEYTAB, keytab.getAbsolutePath());
		KeytabOverlay.Builder builder = KeytabOverlay.newBuilder().fromEnvironment(conf);
		assertEquals(builder.keytabPath, keytab);
	}
}