| /* |
| * 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 |
| * |
| * https://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.tools.ant.taskdefs; |
| |
| import org.apache.tools.ant.BuildFileRule; |
| 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.FileInputStream; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Tests the {@code exec} task which uses a {@code redirector} to redirect its output and error streams |
| */ |
| public class ExecStreamRedirectorTest { |
| |
| @Rule |
| public BuildFileRule buildRule = new BuildFileRule(); |
| |
| @Rule |
| public TemporaryFolder folder = new TemporaryFolder(); |
| |
| private File outputDir; |
| |
| @Before |
| public void setUp() throws IOException { |
| buildRule.configureProject("src/etc/testcases/taskdefs/exec/exec-with-redirector.xml"); |
| outputDir = folder.newFolder(String.valueOf("temp-" + System.nanoTime())); |
| buildRule.getProject().setUserProperty("output", outputDir.toString()); |
| buildRule.executeTarget("setUp"); |
| } |
| |
| /** |
| * Tests that the redirected streams of the exec'ed process aren't truncated. |
| * |
| * @throws Exception if something goes wrong |
| * @see <a href="https://bz.apache.org/bugzilla/show_bug.cgi?id=58451">bz-58451</a> and |
| * <a href="https://bz.apache.org/bugzilla/show_bug.cgi?id=58833">bz-58833</a> for more details |
| */ |
| @Test |
| public void testRedirection() throws Exception { |
| final String dirToList = buildRule.getProject().getProperty("dir.to.ls"); |
| assertNotNull("Directory to list isn't available", dirToList); |
| assertTrue(dirToList + " is not a directory", new File(dirToList).isDirectory()); |
| |
| buildRule.executeTarget("list-dir"); |
| |
| // verify the redirected output |
| byte[] dirListingOutput = null; |
| for (int i = 1; i <= 16; i++) { |
| final File redirectedOutputFile = new File(outputDir, "ls" + i + ".txt"); |
| assertTrue(redirectedOutputFile + " is missing or not a regular file", |
| redirectedOutputFile.isFile()); |
| final byte[] redirectedOutput = readAllBytes(redirectedOutputFile); |
| assertNotNull("No content was redirected to " + redirectedOutputFile, redirectedOutput); |
| assertNotEquals("Content in redirected file " + redirectedOutputFile + " was empty", |
| 0, redirectedOutput.length); |
| if (dirListingOutput != null) { |
| // Compare the directory listing that was redirected to these files. |
| // All files should have the same content. |
| assertTrue("Redirected output in file " + redirectedOutputFile + |
| " doesn't match content in other redirected output file(s)", |
| Arrays.equals(dirListingOutput, redirectedOutput)); |
| } |
| dirListingOutput = redirectedOutput; |
| } |
| } |
| |
| private static byte[] readAllBytes(final File file) throws IOException { |
| final ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| try (FileInputStream fis = new FileInputStream(file)) { |
| final byte[] dataChunk = new byte[1024]; |
| int numRead = -1; |
| while ((numRead = fis.read(dataChunk)) > 0) { |
| bos.write(dataChunk, 0, numRead); |
| } |
| } |
| return bos.toByteArray(); |
| } |
| } |