| /** |
| * 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.hdfs.server.datanode; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.HdfsConfiguration; |
| import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.StartupOption; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.hamcrest.core.Is.is; |
| import static org.junit.Assert.assertThat; |
| |
| /** |
| * This test verifies DataNode command line processing. |
| */ |
| public class TestDatanodeStartupOptions { |
| |
| private Configuration conf = null; |
| |
| /** |
| * Process the given arg list as command line arguments to the DataNode |
| * to make sure we get the expected result. If the expected result is |
| * success then further validate that the parsed startup option is the |
| * same as what was expected. |
| * |
| * @param expectSuccess |
| * @param expectedOption |
| * @param conf |
| * @param arg |
| */ |
| private static void checkExpected(boolean expectSuccess, |
| StartupOption expectedOption, |
| Configuration conf, |
| String ... arg) { |
| |
| String[] args = new String[arg.length]; |
| int i = 0; |
| for (String currentArg : arg) { |
| args[i++] = currentArg; |
| } |
| |
| boolean returnValue = DataNode.parseArguments(args, conf); |
| StartupOption option = DataNode.getStartupOption(conf); |
| assertThat(returnValue, is(expectSuccess)); |
| |
| if (expectSuccess) { |
| assertThat(option, is(expectedOption)); |
| } |
| } |
| |
| /** |
| * Reinitialize configuration before every test since DN stores the |
| * parsed StartupOption in the configuration. |
| */ |
| @Before |
| public void initConfiguration() { |
| conf = new HdfsConfiguration(); |
| } |
| |
| /** |
| * A few options that should all parse successfully. |
| */ |
| @Test (timeout=60000) |
| public void testStartupSuccess() { |
| checkExpected(true, StartupOption.REGULAR, conf); |
| checkExpected(true, StartupOption.REGULAR, conf, "-regular"); |
| checkExpected(true, StartupOption.REGULAR, conf, "-REGULAR"); |
| checkExpected(true, StartupOption.ROLLBACK, conf, "-rollback"); |
| } |
| |
| /** |
| * A few options that should all fail to parse. |
| */ |
| @Test (timeout=60000) |
| public void testStartupFailure() { |
| checkExpected(false, StartupOption.REGULAR, conf, "unknownoption"); |
| checkExpected(false, StartupOption.REGULAR, conf, "-regular -rollback"); |
| } |
| } |