| /** |
| * 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.tools; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public abstract class GetGroupsTestBase { |
| |
| protected Configuration conf; |
| private UserGroupInformation testUser1; |
| private UserGroupInformation testUser2; |
| |
| protected abstract Tool getTool(PrintStream o); |
| |
| @Before |
| public void setUpUsers() throws IOException { |
| // Make sure the current user's info is in the list of test users. |
| UserGroupInformation currentUser = UserGroupInformation.getCurrentUser(); |
| UserGroupInformation.createUserForTesting(currentUser.getUserName(), currentUser.getGroupNames()); |
| |
| testUser1 = UserGroupInformation.createUserForTesting("foo", new String[]{"bar", "baz"}); |
| testUser2 = UserGroupInformation.createUserForTesting("fiz", new String[]{"buz", "boz"}); |
| } |
| |
| @Test |
| public void testNoUserGiven() throws Exception { |
| String actualOutput = runTool(conf, new String[0], true); |
| UserGroupInformation currentUser = UserGroupInformation.getCurrentUser(); |
| assertEquals("No user provided should default to current user", |
| getExpectedOutput(currentUser), actualOutput); |
| } |
| |
| @Test |
| public void testExistingUser() throws Exception { |
| String actualOutput = runTool(conf, new String[]{testUser1.getUserName()}, true); |
| assertEquals("Show only the output of the user given", |
| getExpectedOutput(testUser1), actualOutput); |
| } |
| |
| @Test |
| public void testMultipleExistingUsers() throws Exception { |
| String actualOutput = runTool(conf, |
| new String[]{testUser1.getUserName(), testUser2.getUserName()}, true); |
| assertEquals("Show the output for both users given", |
| getExpectedOutput(testUser1) + getExpectedOutput(testUser2), actualOutput); |
| } |
| |
| @Test |
| public void testNonExistentUser() throws Exception { |
| String actualOutput = runTool(conf, |
| new String[]{"does-not-exist"}, true); |
| assertEquals("Show the output for only the user given, with no groups", |
| getExpectedOutput(UserGroupInformation.createRemoteUser("does-not-exist")), |
| actualOutput); |
| } |
| |
| @Test |
| public void testMultipleNonExistingUsers() throws Exception { |
| String actualOutput = runTool(conf, |
| new String[]{"does-not-exist1", "does-not-exist2"}, true); |
| assertEquals("Show the output for only the user given, with no groups", |
| getExpectedOutput(UserGroupInformation.createRemoteUser("does-not-exist1")) + |
| getExpectedOutput(UserGroupInformation.createRemoteUser("does-not-exist2")), |
| actualOutput); |
| } |
| |
| @Test |
| public void testExistingInterleavedWithNonExistentUsers() throws Exception { |
| String actualOutput = runTool(conf, |
| new String[]{"does-not-exist1", testUser1.getUserName(), |
| "does-not-exist2", testUser2.getUserName()}, true); |
| assertEquals("Show the output for only the user given, with no groups", |
| getExpectedOutput(UserGroupInformation.createRemoteUser("does-not-exist1")) + |
| getExpectedOutput(testUser1) + |
| getExpectedOutput(UserGroupInformation.createRemoteUser("does-not-exist2")) + |
| getExpectedOutput(testUser2), |
| actualOutput); |
| } |
| |
| private static String getExpectedOutput(UserGroupInformation user) { |
| String expectedOutput = user.getUserName() + " :"; |
| for (String group : user.getGroupNames()) { |
| expectedOutput += " " + group; |
| } |
| return expectedOutput + System.getProperty("line.separator"); |
| } |
| |
| private String runTool(Configuration conf, String[] args, boolean success) |
| throws Exception { |
| ByteArrayOutputStream o = new ByteArrayOutputStream(); |
| PrintStream out = new PrintStream(o, true); |
| try { |
| int ret = ToolRunner.run(getTool(out), args); |
| assertEquals(success, ret == 0); |
| return o.toString(); |
| } finally { |
| o.close(); |
| out.close(); |
| } |
| } |
| } |