| /** |
| * 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.oozie.action.hadoop; |
| |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.util.Arrays; |
| |
| public class TestShellContentWriter { |
| |
| public static final int MAX_TEST_SCRIPT_SIZE_KB = 128; |
| |
| ByteArrayOutputStream outputStream; |
| ByteArrayOutputStream errorStream; |
| File scriptFile; |
| |
| @Before |
| public void setUp() throws IOException { |
| outputStream = new ByteArrayOutputStream(MAX_TEST_SCRIPT_SIZE_KB); |
| errorStream = new ByteArrayOutputStream(MAX_TEST_SCRIPT_SIZE_KB); |
| scriptFile = folder.newFile("shell_script.sh"); |
| } |
| |
| @Rule |
| public TemporaryFolder folder = new TemporaryFolder(); |
| |
| @Test |
| public void testPrintShellFile() throws Exception { |
| writeScript("echo Hello World"); |
| |
| Assert.assertTrue(outputStream.toString().contains("echo Hello World")); |
| Assert.assertTrue(errorStream.toString().isEmpty()); |
| } |
| |
| @Test |
| public void testPrintShellNullByte() throws Exception { |
| writeScript("echo Hello World\0"); |
| |
| Assert.assertFalse(outputStream.toString().contains("Hello World")); |
| Assert.assertTrue(errorStream.toString().contains("appears to be a binary file")); |
| } |
| |
| @Test |
| public void testPrintShellValidShellCommand() { |
| callPrint(1, "echo"); |
| |
| Assert.assertTrue(String.format("output stream must be empty but is [%s]", outputStream.toString()), |
| outputStream.toString().isEmpty()); |
| Assert.assertTrue(String.format("error stream must be empty but is [%s]", errorStream.toString()), |
| errorStream.toString().isEmpty()); |
| } |
| |
| @Test |
| public void testPrintShellInvalidShellCommand() { |
| callPrint(1, "invalid command"); |
| |
| Assert.assertTrue(String.format("output stream must be empty but is [%s]", outputStream.toString()), |
| outputStream.toString().isEmpty()); |
| Assert.assertTrue(String.format("invalid error stream message [%s]", errorStream.toString()), |
| errorStream.toString().contains("doesn't appear to exist")); |
| } |
| @Test |
| public void testPrintControlCharacter() throws Exception { |
| writeScript("echo Hello World\011"); |
| |
| Assert.assertFalse(outputStream.toString().contains("Hello World")); |
| Assert.assertTrue(errorStream.toString().contains("appears to be a binary file")); |
| } |
| |
| @Test |
| public void testEmptyFile() throws Exception { |
| writeScript(""); |
| |
| Assert.assertTrue(outputStream.toString().contains("---\n\n---")); |
| Assert.assertTrue(errorStream.toString().isEmpty()); |
| } |
| |
| @Test |
| public void testTooLargeFile() throws Exception { |
| byte[] arr = new byte[2048]; |
| Arrays.fill(arr, (byte) Character.getNumericValue('x')); |
| |
| writeScript(new String(arr)); |
| |
| Assert.assertTrue(outputStream.toString().isEmpty()); |
| Assert.assertTrue(errorStream.toString().contains("content suppressed.")); |
| Assert.assertTrue(errorStream.toString().contains("File size=2048b; max printable size=1024b")); |
| } |
| |
| @Test |
| public void testNegativeMaxSize() throws Exception { |
| writeScript("test script", -1); |
| |
| Assert.assertTrue(outputStream.toString().isEmpty()); |
| Assert.assertTrue(errorStream.toString().contains("Not printing script file as configured, content suppressed.")); |
| } |
| |
| @Test |
| public void testMissingFile() throws Exception { |
| scriptFile.delete(); |
| |
| writeScript(""); |
| |
| Assert.assertTrue(outputStream.toString().isEmpty()); |
| Assert.assertTrue(String.format("invalid error stream message [%s]", errorStream.toString()), |
| errorStream.toString().contains("doesn't appear to exist")); |
| } |
| |
| private void writeScript(String content) throws IOException { |
| writeScript(content, 1); |
| } |
| |
| // Write a stub script with the given content, and invoke the writer to print its content |
| private void writeScript(String content, int maxLen) throws IOException { |
| if (content != null && !content.isEmpty()) { |
| Files.write(scriptFile.toPath(), content.getBytes()); |
| } |
| |
| callPrint(maxLen, scriptFile.getAbsolutePath()); |
| } |
| |
| private void callPrint(final int maxLen, final String filename) { |
| ShellContentWriter writer = new ShellContentWriter( |
| maxLen, |
| outputStream, |
| errorStream, |
| filename |
| ); |
| |
| writer.print(); |
| } |
| } |