| /* |
| * 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.tools.ant.taskdefs; |
| import java.io.PrintStream; |
| |
| import junit.framework.AssertionFailedError; |
| |
| import org.apache.tools.ant.BuildFileTest; |
| import org.apache.tools.ant.DemuxOutputStream; |
| import org.apache.tools.ant.Project; |
| |
| /** |
| * Test of the parallel TaskContainer |
| * |
| * @created 21 February 2002 |
| */ |
| public class ParallelTest extends BuildFileTest { |
| /** Standard property value for the basic test */ |
| public final static String DIRECT_MESSAGE = "direct"; |
| /** Standard property value for the basic and fail test */ |
| public final static String DELAYED_MESSAGE = "delayed"; |
| /** Standard property value for the fail test */ |
| public final static String FAILURE_MESSAGE = "failure"; |
| |
| /** the build fiel associated with this test */ |
| public final static String TEST_BUILD_FILE |
| = "src/etc/testcases/taskdefs/parallel.xml"; |
| |
| /** |
| * Constructor for the ParallelTest object |
| * |
| * @param name name of the test |
| */ |
| public ParallelTest(String name) { |
| super(name); |
| } |
| |
| /** The JUnit setup method */ |
| public void setUp() { |
| configureProject(TEST_BUILD_FILE); |
| } |
| |
| /** tests basic operation of the parallel task */ |
| public void testBasic() { |
| // should get no output at all |
| Project p = getProject(); |
| p.setUserProperty("test.direct", DIRECT_MESSAGE); |
| p.setUserProperty("test.delayed", DELAYED_MESSAGE); |
| expectOutputAndError("testBasic", "", ""); |
| String log = getLog(); |
| assertEquals("parallel tasks didn't output correct data", log, |
| DIRECT_MESSAGE + DELAYED_MESSAGE); |
| |
| } |
| |
| /** tests basic operation of the parallel task */ |
| public void testThreadCount() { |
| // should get no output at all |
| Project p = getProject(); |
| p.setUserProperty("test.direct", DIRECT_MESSAGE); |
| p.setUserProperty("test.delayed", DELAYED_MESSAGE); |
| expectOutputAndError("testThreadCount", "", ""); |
| String log = getLog(); |
| int pos = 0; |
| while (pos > -1) { |
| pos = countThreads(log, pos); |
| } |
| } |
| |
| /** |
| * the test result string should match the regex |
| * <code>^(\|\d+\/(+-)*)+\|$</code> for someting like |
| * <code>|3/++--+-|5/+++++-----|</code> |
| * |
| *@returns -1 no more tests |
| * # start pos of next test |
| *@throws AssertionFailedException when a constraint is invalid |
| */ |
| static int countThreads(String s, int start) { |
| int firstPipe = s.indexOf('|', start); |
| int beginSlash = s.indexOf('/', firstPipe); |
| int lastPipe = s.indexOf('|', beginSlash); |
| if ((firstPipe == -1) || (beginSlash == -1) || (lastPipe == -1)) { |
| return -1; |
| } |
| |
| int max = Integer.parseInt(s.substring(firstPipe + 1, beginSlash)); |
| int current = 0; |
| int pos = beginSlash + 1; |
| while (pos < lastPipe) { |
| switch (s.charAt(pos++)) { |
| case '+': |
| current++; |
| break; |
| case '-': |
| current--; |
| break; |
| default: |
| throw new AssertionFailedError("Only expect '+-' in result count, found " |
| + s.charAt(--pos) + " at position " + pos); |
| } |
| if (current > max) { |
| throw new AssertionFailedError("Number of executing threads exceeded number allowed: " |
| + current + " > " + max); |
| } |
| } |
| return lastPipe; |
| } |
| |
| |
| /** tests the failure of a task within a parallel construction */ |
| public void testFail() { |
| // should get no output at all |
| Project p = getProject(); |
| p.setUserProperty("test.failure", FAILURE_MESSAGE); |
| p.setUserProperty("test.delayed", DELAYED_MESSAGE); |
| expectBuildExceptionContaining("testFail", |
| "fail task in one parallel branch", FAILURE_MESSAGE); |
| } |
| |
| /** tests the demuxing of output streams in a multithreaded situation */ |
| public void testDemux() { |
| Project p = getProject(); |
| p.addTaskDefinition("demuxtest", DemuxOutputTask.class); |
| PrintStream out = System.out; |
| PrintStream err = System.err; |
| System.setOut(new PrintStream(new DemuxOutputStream(p, false))); |
| System.setErr(new PrintStream(new DemuxOutputStream(p, true))); |
| |
| try { |
| p.executeTarget("testDemux"); |
| } finally { |
| System.setOut(out); |
| System.setErr(err); |
| } |
| } |
| |
| } |
| |