/*
* The Apache Software License, Version 1.1
*
* Copyright (C) 2000-2002 The Apache Software Foundation. All rights
* reserved.
* Copyright (C) 2010 Piotr Tabor
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "Ant" and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package net.sourceforge.cobertura.test;
import groovy.util.AntBuilder;
import net.sourceforge.cobertura.ant.ReportTask;
import net.sourceforge.cobertura.test.util.TestUtils;
import org.apache.commons.io.FileUtils;
import org.apache.tools.ant.taskdefs.Java;
import org.apache.tools.ant.types.DirSet;
import org.apache.tools.ant.types.Path;
import org.junit.Test;
import java.io.File;
import java.util.HashMap;
public class PerformanceTest {
AntBuilder ant = TestUtils.getCoberturaAntBuilder(TestUtils
.getCoberturaClassDir());
@Test
public void performanceTest() throws Exception {
/*
* Use a temporary directory and create a Main.java source file that
* has trivial methods such as .
*/
File tempDir = TestUtils.getTempDir();
FileUtils.deleteDirectory(tempDir);
File srcDir = new File(tempDir, "src");
File instrumentDir = new File(tempDir, "instrument");
File mainSourceFile = new File(srcDir, "mypackage/Main.java");
File datafile = new File(srcDir, "cobertura.ser");
mainSourceFile.getParentFile().mkdirs();
FileUtils
.write(
mainSourceFile,
"\n package mypackage;"
+ "\n "
+ "\n public class Main extends Thread {"
+ "\n public static void main(String[] args) {"
+ "\n long start = System.nanoTime();"
+ "\n int j = 0;"
+ "\n for (int i = 0; i < 100000; i++) {"
+ "\n if (i % 2 == 0) { j+=2; };"
+ "\n switch (i % 4) {"
+ "\n case 0 : "
+ "\n case 1 : j++;"
+ "\n case 2 : j+=2;"
+ "\n default: j+=3;"
+ "\n } "
+ "\n }"
+ "\n long stop = System.nanoTime();"
+ "\n System.out.println(\"Test took:\" + (stop - start)/100000.0 + \" milis\");"
+ "\n }" + "\n }");
TestUtils.compileSource(ant, srcDir);
/*
* Kick off the Main (instrumented) class.
*/
System.out.println("Run without instrumentation:\n");
Path classpath = new Path(TestUtils.project);
DirSet dirSetSrcDir = new DirSet();
dirSetSrcDir.setDir(srcDir);
classpath.addDirset(dirSetSrcDir);
Java java = new Java();
java.setProject(TestUtils.project);
java.setClassname("mypackage.Main");
java.setDir(srcDir);
java.setFork(true);
java.setFailonerror(true);
java.setClasspath(classpath);
java.setOutput(new File(tempDir, "PT_uninstrumented.log"));
java.execute();
System.out.println(FileUtils.readFileToString(new File(tempDir,
"PT_uninstrumented.log")));
TestUtils.instrumentClasses(ant, srcDir, datafile, instrumentDir);
System.out
.println("Run with instrumentation (not threadsafe-rigorous):\n");
classpath = new Path(TestUtils.project);
DirSet dirSetInstrumentDir = new DirSet();
dirSetSrcDir = new DirSet();
dirSetInstrumentDir.setDir(instrumentDir);
dirSetSrcDir.setDir(srcDir);
classpath.addDirset(dirSetInstrumentDir);
classpath.addDirset(dirSetSrcDir);
classpath.addDirset(TestUtils.getCoberturaClassDirSet());
java = new Java();
java.setClassname("mypackage.Main");
java.setDir(srcDir);
java.setFork(true);
java.setFailonerror(true);
java.setClasspath(classpath);
java.setProject(TestUtils.project);
java.setOutput(new File(tempDir, "PT_instrumentedNonThreadSafe.log"));
java.execute();
System.out.println(FileUtils.readFileToString(
new File(tempDir, "PT_instrumentedNonThreadSafe.log"))
.toString());
TestUtils.compileSource(ant, srcDir);
TestUtils.instrumentClasses(ant, srcDir, datafile, instrumentDir,
new HashMap() {
{
put("threadsafeRigorous", true);
}
});
System.out.println("Run with instrumentation (threadsafe-rigorous):\n");
java = new Java();
java.setClassname("mypackage.Main");
java.setDir(srcDir);
java.setFork(true);
java.setFailonerror(true);
java.setClasspath(classpath);
java.setProject(TestUtils.project);
java.setOutput(new File(tempDir, "PT_instrumentedThreadSafe.log"));
java.execute();
System.out.println(FileUtils.readFileToString(new File(tempDir,
"PT_instrumentedThreadSafe.log")));
/*
* Now create a cobertura xml file and make sure the correct counts are in it.
*/
ReportTask reportTask = new ReportTask();
reportTask.setProject(TestUtils.project);
reportTask.setDataFile(datafile.getAbsolutePath());
reportTask.setFormat("xml");
reportTask.setDestDir(srcDir);
reportTask.execute();
}
}