| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ozone.om; |
| |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.security.authentication.client.AuthenticationException; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import static org.junit.Assert.*; |
| |
| /** |
| * This class is used to test the CLI provided by OzoneManagerStarter, which is |
| * used to start and init the OzoneManager. The calls to the Ozone Manager are |
| * mocked so the tests only validate the CLI calls the correct methods are |
| * invoked. |
| */ |
| public class TestOzoneManagerStarter { |
| |
| private final ByteArrayOutputStream outContent = new ByteArrayOutputStream(); |
| private final ByteArrayOutputStream errContent = new ByteArrayOutputStream(); |
| private final PrintStream originalOut = System.out; |
| private final PrintStream originalErr = System.err; |
| |
| private MockOMStarter mock; |
| |
| @Before |
| public void setUpStreams() { |
| System.setOut(new PrintStream(outContent)); |
| System.setErr(new PrintStream(errContent)); |
| mock = new MockOMStarter(); |
| } |
| |
| @After |
| public void restoreStreams() { |
| System.setOut(originalOut); |
| System.setErr(originalErr); |
| } |
| |
| @Test |
| public void testCallsStartWhenServerStarted() throws Exception { |
| executeCommand(); |
| assertTrue(mock.startCalled); |
| } |
| |
| @Test |
| public void testExceptionThrownWhenStartFails() throws Exception { |
| mock.throwOnStart = true; |
| try { |
| executeCommand(); |
| fail("Exception should have been thrown"); |
| } catch (Exception e) { |
| assertTrue(true); |
| } |
| } |
| |
| @Test |
| public void testStartNotCalledWithInvalidParam() throws Exception { |
| executeCommand("--invalid"); |
| assertFalse(mock.startCalled); |
| } |
| |
| @Test |
| public void testPassingInitSwitchCallsInit() { |
| executeCommand("--init"); |
| assertTrue(mock.initCalled); |
| } |
| |
| @Test |
| public void testInitSwitchWithInvalidParamDoesNotRun() { |
| executeCommand("--init", "--invalid"); |
| assertFalse(mock.initCalled); |
| } |
| |
| @Test |
| public void testUnSuccessfulInitThrowsException() { |
| mock.throwOnInit = true; |
| try { |
| executeCommand("--init"); |
| fail("Exception show have been thrown"); |
| } catch (Exception e) { |
| assertTrue(true); |
| } |
| } |
| |
| @Test |
| public void testInitThatReturnsFalseThrowsException() { |
| mock.initStatus = false; |
| try { |
| executeCommand("--init"); |
| fail("Exception show have been thrown"); |
| } catch (Exception e) { |
| assertTrue(true); |
| } |
| } |
| |
| @Test |
| public void testUsagePrintedOnInvalidInput() { |
| executeCommand("--invalid"); |
| Pattern p = Pattern.compile("^Unknown option:.*--invalid.*\nUsage"); |
| Matcher m = p.matcher(errContent.toString()); |
| assertTrue(m.find()); |
| } |
| |
| private void executeCommand(String... args) { |
| new OzoneManagerStarter(mock).execute(args); |
| } |
| |
| static class MockOMStarter implements OMStarterInterface { |
| |
| private boolean startCalled = false; |
| private boolean initCalled = false; |
| private boolean initStatus = true; |
| private boolean throwOnStart = false; |
| private boolean throwOnInit = false; |
| |
| public void start(OzoneConfiguration conf) throws IOException, |
| AuthenticationException { |
| startCalled = true; |
| if (throwOnStart) { |
| throw new IOException("Simulated Exception"); |
| } |
| } |
| |
| public boolean init(OzoneConfiguration conf) throws IOException, |
| AuthenticationException { |
| initCalled = true; |
| if (throwOnInit) { |
| throw new IOException("Simulated Exception"); |
| } |
| return initStatus; |
| } |
| } |
| } |