tests/org.eclipse.m2m.tests.qvt.oml/src/org/eclipse/m2m/tests/qvt/oml/util/TestUtil.java - mmt/org.eclipse.qvto - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007 Borland Software Corporation
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     Borland Software Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.m2m.tests.qvt.oml.util;

 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;

 import junit.framework.Assert;
 import junit.framework.TestCase;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceVisitor;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.IWorkspaceDescription;
 import org.eclipse.core.resources.IWorkspaceRunnable;
 import org.eclipse.core.resources.IncrementalProjectBuilder;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.FileLocator;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.emf.common.util.URI;
 import org.eclipse.emf.ecore.resource.Resource;
 import org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl;
 import org.eclipse.m2m.internal.qvt.oml.common.MdaException;
 import org.eclipse.m2m.internal.qvt.oml.common.io.CFile;
 import org.eclipse.m2m.internal.qvt.oml.common.io.FileUtil;
 import org.eclipse.m2m.internal.qvt.oml.common.io.eclipse.EclipseFile;
 import org.eclipse.m2m.internal.qvt.oml.compiler.CompiledModule;
 import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompilationResult;
 import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompiler;
 import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompilerOptions;
 import org.eclipse.m2m.internal.qvt.oml.evaluator.QvtRuntimeException;
 import org.eclipse.m2m.internal.qvt.oml.expressions.Module;
 import org.eclipse.m2m.tests.qvt.oml.RuntimeWorkspaceSetup;
 import org.eclipse.m2m.tests.qvt.oml.TestProject;
 import org.osgi.framework.Bundle;

 /**
  * @author vrepeshko
  */
 public class TestUtil extends Assert {

 	public static final String BUNDLE = "org.eclipse.m2m.tests.qvt.oml"; //$NON-NLS-1$

 	private TestUtil() {}

 	static Set<CompiledModule> collectAllCompiledModules(CompiledModule compiledModule, Set<CompiledModule> result) {
 		result.add(compiledModule);
 		for (CompiledModule imported : compiledModule.getCompiledImports()) {
 			collectAllCompiledModules(imported, result);
 		}
 		return result;
 	}

 	public static void assertPersistableAST(Module module, URI targetUri) {
 		OutputStream os = null;
 		try {
 			os = new ExtensibleURIConverterImpl().createOutputStream(targetUri);
 			module.eResource().save(os, Collections.emptyMap());
 		} catch (Exception e) {
 			TestCase.fail("Failed to serialize AST: " + e.getMessage()); //$NON-NLS-1$
 		} finally {
 			if(os != null) {
 				try {
 					os.close();
 				} catch (IOException e) {
 					e.printStackTrace();
 				}
 			}
 		}
 	}

 	public static void assertAllPersistableAST(CompiledModule compiledModule) {
 		Collection<CompiledModule> all = collectAllCompiledModules(compiledModule, new HashSet<CompiledModule>());

 		HashMap<CompiledModule, Resource> resourceMap = new HashMap<CompiledModule, Resource>();
 		for (CompiledModule nextModule : all) {
 			resourceMap.put(nextModule, confineInResource(nextModule));
 		}

 		for (CompiledModule nextModule : all) {
 			Resource res = resourceMap.get(nextModule);
 			assertPersistableAST(nextModule, res);
 		}
 	}

 	private static Resource confineInResource(CompiledModule module) {
 		// FIXME -
 		EclipseFile source = (EclipseFile)module.getSource();
 		URI uri = URI.createURI(source.getFile().getLocationURI().toString()).appendFileExtension("xmi"); //$NON-NLS-1$
 		Resource res = module.getModule().eResource();
 		assertNotNull("A resource must be bound to AST Module: " + uri, res); //$NON-NLS-1$
 		res.getContents().add(module.getModule());
 		res.setURI(uri);
 		return res;
 	}

 	private static Resource assertPersistableAST(CompiledModule module, Resource res) {
 		try {
 			res.save(null);
 		} catch (Exception e) {
 			System.err.print(module.getSource().getFullPath());
 			e.printStackTrace();
 			fail("Invalid module AST for serialization" + e.getLocalizedMessage()); //$NON-NLS-1$
 		}

 		assertTrue(new ExtensibleURIConverterImpl().exists(res.getURI(), Collections.emptyMap()));

 		return res;
 	}

 	public static Set<Module> compileModules(String srcContainer, String[] modulePaths)  {
 		TestModuleResolver testResolver = TestModuleResolver.createdTestPluginResolver(srcContainer);

 		QvtCompiler compiler = new QvtCompiler(TestModuleResolver.createdTestPluginResolver(srcContainer));
 		QvtCompilerOptions options = new QvtCompilerOptions();
 		options.setGenerateCompletionData(true);


 		CFile[] sourceFiles = new CFile[modulePaths.length];
 		int pos = 0;
 		for (String nextModulePath : modulePaths) {
 			sourceFiles[pos] = testResolver.resolveImport(nextModulePath);
 			pos++;
 		}

 		QvtCompilationResult[] result;
 		Set<Module> modules;
 		try {
 			result = compiler.compile(sourceFiles, options, null);
 			modules = new LinkedHashSet<Module>();
 			for (QvtCompilationResult nextResult : result) {
 				assertEquals(nextResult.getModule().getSource().getFullPath()
 						+ " must not have compilation error", //$NON-NLS-1$
 						0, nextResult.getErrors().length); //$NON-NLS-1$
 				modules.add(nextResult.getModule().getModule());
 			}

 		} catch (MdaException e) {
 			fail("Compilation errors: " + e.getMessage());
 			return null; // never gets here
 		}

 		return modules;
 	}

 	public static QvtCompiler createTestPluginQvtCompiler(String sourceContainerPath) {
 		return new QvtCompiler(TestModuleResolver.createdTestPluginResolver(sourceContainerPath));
 	}

 	public static void turnOffAutoBuilding() throws CoreException {
 		IWorkspaceDescription workspaceDescription = ResourcesPlugin.getWorkspace().getDescription();
         workspaceDescription.setAutoBuilding(false);
         ResourcesPlugin.getWorkspace().setDescription(workspaceDescription);
 	}

 	public static void copyFolder(final IProject project, final String folderName) throws Exception {
 		File sourceFolder = getPluginRelativeFolder(folderName);
 		File destFolder = new File(project.getLocation().toString());
 		FileUtil.copyFolder(sourceFolder, destFolder);
 //		System.out.println("source: " + sourceFolder.getAbsolutePath());
 //		System.out.println("dest: " + destFolder.getAbsolutePath());
 		project.refreshLocal(IResource.DEPTH_INFINITE, null);
 	}

 	public static File getPluginRelativeFolder(final String folderName) throws IOException {
         return getPluginRelativeFile(BUNDLE, folderName);
 	}

 	public static File getPluginRelativeFile(final String file) throws IOException {
         return getPluginRelativeFile(BUNDLE, file);
 	}

     public static File getPluginRelativeFile(String plugin, String folderName) throws IOException {
         Bundle bundle = Platform.getBundle(plugin);

         URL url = bundle.getEntry(folderName);
         if(url == null) {
             throw new RuntimeException("File " + folderName + " not found in " + plugin); //$NON-NLS-1$ //$NON-NLS-2$
         }

         File file = new File(FileLocator.toFileURL(url).getPath()).getCanonicalFile();
         return file;
     }

 	public static void deleteJavaFiles(final IProject project) throws CoreException {
 	    IWorkspaceRunnable runnable = new IWorkspaceRunnable() {
 	        public void run(IProgressMonitor monitor) throws CoreException {
                 final List<IFile> filesToDelete = new ArrayList<IFile>();

 	            project.accept(new IResourceVisitor() {
 	                public boolean visit(final IResource resource) {
 	                    if(resource.getType() == IResource.FILE) {
 	                        String extension = resource.getFileExtension();
 	                        if("java".equals(extension) || "class".equals(extension)) { //$NON-NLS-1$ //$NON-NLS-2$
 	                            IFile file = (IFile) resource;
 	                            filesToDelete.add(file);
 	                        }
 	                        return false;
 	                    }
 	                    return true;
 	                }
 	            });

                 for (Iterator iter = filesToDelete.iterator(); iter.hasNext();) {
                     IFile file = (IFile) iter.next();
                     try {
                         file.delete(true, null);
                     }
                     catch(Exception e) {}
                 }
 	        }
 	    };

 	    project.getWorkspace().run(runnable, null);
 	}

 	public static void buildProject(final IProject project) throws CoreException {
 	    buildProject(project, IncrementalProjectBuilder.FULL_BUILD);
 	}

     public static void buildProject(final IProject project, final int kind) throws CoreException {
 		project.build(kind, null);
         List errors = getBuildErrors(project);
         assertTrue("Build failed for " + project + ": " + errors, errors.isEmpty()); //$NON-NLS-1$ //$NON-NLS-2$
     }

 	public static List<String> getBuildErrors(final IProject project) throws CoreException {
 		IMarker[] markers = project.findMarkers(
 //				IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER, false,
                 IMarker.PROBLEM, true,
 				IResource.DEPTH_INFINITE);
 		List<String> errors = new ArrayList<String>();
 		for(int i = 0; i < markers.length; i++) {
 			IMarker marker = markers[i];
 			if(RuntimeWorkspaceSetup.getInstance().getIsDevLaunchMode() &&
 				"plugin.xml".equals(marker.getResource().getName()) && //$NON-NLS-1$
 				marker.getResource().getParent() == project) {
 				continue;
 			}
 			if(marker.getAttribute(IMarker.SEVERITY, 0) == IMarker.SEVERITY_ERROR) {
 				String message = marker.getResource().getName() +
 					" " + marker.getAttribute(IMarker.LINE_NUMBER, "") +  //$NON-NLS-1$ //$NON-NLS-2$
 					": " + marker.getAttribute(IMarker.MESSAGE, "") + //$NON-NLS-1$ //$NON-NLS-2$
 					" " + marker.getAttribute(IMarker.LOCATION, "");  //$NON-NLS-1$ //$NON-NLS-2$
 				errors.add(message);
 				System.err.println(message);
 			}
 		}

 		return errors;
 	}

 	public static IProject openExistingProject(final String path) throws CoreException {
 		IWorkspace workspace = ResourcesPlugin.getWorkspace();
 //		IPath projectPath = new Path(path);
 		IPath descriptionPath = new Path(path + File.separator + ".project"); //$NON-NLS-1$
 		IProjectDescription projectDesc = workspace.loadProjectDescription(descriptionPath);
 		String projectName = projectDesc == null ? null : projectDesc.getName();
 		IProject project = workspace.getRoot().getProject(projectName);

 		if (project.exists() && project.isOpen()) {
 			return project;
 		}

 		if (projectDesc == null) {
 			projectDesc = workspace.newProjectDescription(projectName);
 			if (Platform.getLocation().isPrefixOf(descriptionPath)) {
 				projectDesc.setLocation(null);
 			} else {
 				projectDesc.setLocation(descriptionPath);
 			}
 		}  else {
 			projectDesc.setName(projectName);
 		}

 		try {
 			project.create(projectDesc, null);
 			project.open(null);
 		} catch(CoreException e) {
 			e.printStackTrace();
 			throw e;
 		}

 		return project;
 	}

     public static void addProject(TestProject testProject, String path) throws Exception {
         String location = TestUtil.getPluginRelativeFolder(path).getAbsolutePath();
         IProject project = TestUtil.openExistingProject(location);
         TestUtil.buildProject(project);
         testProject.addWorkspaceProject(project);
     }

 	public static void logQVTStackTrace(QvtRuntimeException e) {
 		PrintWriter pw = new PrintWriter(System.err);
 		pw.println("QVT stacktrace:"); //$NON-NLS-1$
 		e.printQvtStackTrace(pw);
 		pw.flush();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2007 Borland Software Corporation
	*
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Borland Software Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.m2m.tests.qvt.oml.util;

	import java.io.File;
	import java.io.IOException;
	import java.io.OutputStream;
	import java.io.PrintWriter;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.Iterator;
	import java.util.LinkedHashSet;
	import java.util.List;
	import java.util.Set;

	import junit.framework.Assert;
	import junit.framework.TestCase;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IMarker;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IProjectDescription;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IResourceVisitor;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.IWorkspaceDescription;
	import org.eclipse.core.resources.IWorkspaceRunnable;
	import org.eclipse.core.resources.IncrementalProjectBuilder;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.FileLocator;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.emf.common.util.URI;
	import org.eclipse.emf.ecore.resource.Resource;
	import org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl;
	import org.eclipse.m2m.internal.qvt.oml.common.MdaException;
	import org.eclipse.m2m.internal.qvt.oml.common.io.CFile;
	import org.eclipse.m2m.internal.qvt.oml.common.io.FileUtil;
	import org.eclipse.m2m.internal.qvt.oml.common.io.eclipse.EclipseFile;
	import org.eclipse.m2m.internal.qvt.oml.compiler.CompiledModule;
	import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompilationResult;
	import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompiler;
	import org.eclipse.m2m.internal.qvt.oml.compiler.QvtCompilerOptions;
	import org.eclipse.m2m.internal.qvt.oml.evaluator.QvtRuntimeException;
	import org.eclipse.m2m.internal.qvt.oml.expressions.Module;
	import org.eclipse.m2m.tests.qvt.oml.RuntimeWorkspaceSetup;
	import org.eclipse.m2m.tests.qvt.oml.TestProject;
	import org.osgi.framework.Bundle;

	/**
	* @author vrepeshko
	*/
	public class TestUtil extends Assert {

	public static final String BUNDLE = "org.eclipse.m2m.tests.qvt.oml"; //$NON-NLS-1$

	private TestUtil() {}

	static Set<CompiledModule> collectAllCompiledModules(CompiledModule compiledModule, Set<CompiledModule> result) {
	result.add(compiledModule);
	for (CompiledModule imported : compiledModule.getCompiledImports()) {
	collectAllCompiledModules(imported, result);
	}
	return result;
	}

	public static void assertPersistableAST(Module module, URI targetUri) {
	OutputStream os = null;
	try {
	os = new ExtensibleURIConverterImpl().createOutputStream(targetUri);
	module.eResource().save(os, Collections.emptyMap());
	} catch (Exception e) {
	TestCase.fail("Failed to serialize AST: " + e.getMessage()); //$NON-NLS-1$
	} finally {
	if(os != null) {
	try {
	os.close();
	} catch (IOException e) {
	e.printStackTrace();
	}
	}
	}
	}

	public static void assertAllPersistableAST(CompiledModule compiledModule) {
	Collection<CompiledModule> all = collectAllCompiledModules(compiledModule, new HashSet<CompiledModule>());

	HashMap<CompiledModule, Resource> resourceMap = new HashMap<CompiledModule, Resource>();
	for (CompiledModule nextModule : all) {
	resourceMap.put(nextModule, confineInResource(nextModule));
	}

	for (CompiledModule nextModule : all) {
	Resource res = resourceMap.get(nextModule);
	assertPersistableAST(nextModule, res);
	}
	}

	private static Resource confineInResource(CompiledModule module) {
	// FIXME -
	EclipseFile source = (EclipseFile)module.getSource();
	URI uri = URI.createURI(source.getFile().getLocationURI().toString()).appendFileExtension("xmi"); //$NON-NLS-1$
	Resource res = module.getModule().eResource();
	assertNotNull("A resource must be bound to AST Module: " + uri, res); //$NON-NLS-1$
	res.getContents().add(module.getModule());
	res.setURI(uri);
	return res;
	}

	private static Resource assertPersistableAST(CompiledModule module, Resource res) {
	try {
	res.save(null);
	} catch (Exception e) {
	System.err.print(module.getSource().getFullPath());
	e.printStackTrace();
	fail("Invalid module AST for serialization" + e.getLocalizedMessage()); //$NON-NLS-1$
	}

	assertTrue(new ExtensibleURIConverterImpl().exists(res.getURI(), Collections.emptyMap()));

	return res;
	}

	public static Set<Module> compileModules(String srcContainer, String[] modulePaths) {
	TestModuleResolver testResolver = TestModuleResolver.createdTestPluginResolver(srcContainer);

	QvtCompiler compiler = new QvtCompiler(TestModuleResolver.createdTestPluginResolver(srcContainer));
	QvtCompilerOptions options = new QvtCompilerOptions();
	options.setGenerateCompletionData(true);


	CFile[] sourceFiles = new CFile[modulePaths.length];
	int pos = 0;
	for (String nextModulePath : modulePaths) {
	sourceFiles[pos] = testResolver.resolveImport(nextModulePath);
	pos++;
	}

	QvtCompilationResult[] result;
	Set<Module> modules;
	try {
	result = compiler.compile(sourceFiles, options, null);
	modules = new LinkedHashSet<Module>();
	for (QvtCompilationResult nextResult : result) {
	assertEquals(nextResult.getModule().getSource().getFullPath()
	+ " must not have compilation error", //$NON-NLS-1$
	0, nextResult.getErrors().length); //$NON-NLS-1$
	modules.add(nextResult.getModule().getModule());
	}

	} catch (MdaException e) {
	fail("Compilation errors: " + e.getMessage());
	return null; // never gets here
	}

	return modules;
	}

	public static QvtCompiler createTestPluginQvtCompiler(String sourceContainerPath) {
	return new QvtCompiler(TestModuleResolver.createdTestPluginResolver(sourceContainerPath));
	}

	public static void turnOffAutoBuilding() throws CoreException {
	IWorkspaceDescription workspaceDescription = ResourcesPlugin.getWorkspace().getDescription();
	workspaceDescription.setAutoBuilding(false);
	ResourcesPlugin.getWorkspace().setDescription(workspaceDescription);
	}

	public static void copyFolder(final IProject project, final String folderName) throws Exception {
	File sourceFolder = getPluginRelativeFolder(folderName);
	File destFolder = new File(project.getLocation().toString());
	FileUtil.copyFolder(sourceFolder, destFolder);
	// System.out.println("source: " + sourceFolder.getAbsolutePath());
	// System.out.println("dest: " + destFolder.getAbsolutePath());
	project.refreshLocal(IResource.DEPTH_INFINITE, null);
	}

	public static File getPluginRelativeFolder(final String folderName) throws IOException {
	return getPluginRelativeFile(BUNDLE, folderName);
	}

	public static File getPluginRelativeFile(final String file) throws IOException {
	return getPluginRelativeFile(BUNDLE, file);
	}

	public static File getPluginRelativeFile(String plugin, String folderName) throws IOException {
	Bundle bundle = Platform.getBundle(plugin);

	URL url = bundle.getEntry(folderName);
	if(url == null) {
	throw new RuntimeException("File " + folderName + " not found in " + plugin); //$NON-NLS-1$ //$NON-NLS-2$
	}

	File file = new File(FileLocator.toFileURL(url).getPath()).getCanonicalFile();
	return file;
	}

	public static void deleteJavaFiles(final IProject project) throws CoreException {
	IWorkspaceRunnable runnable = new IWorkspaceRunnable() {
	public void run(IProgressMonitor monitor) throws CoreException {
	final List<IFile> filesToDelete = new ArrayList<IFile>();

	project.accept(new IResourceVisitor() {
	public boolean visit(final IResource resource) {
	if(resource.getType() == IResource.FILE) {
	String extension = resource.getFileExtension();
	if("java".equals(extension) \|\| "class".equals(extension)) { //$NON-NLS-1$ //$NON-NLS-2$
	IFile file = (IFile) resource;
	filesToDelete.add(file);
	}
	return false;
	}
	return true;
	}
	});

	for (Iterator iter = filesToDelete.iterator(); iter.hasNext();) {
	IFile file = (IFile) iter.next();
	try {
	file.delete(true, null);
	}
	catch(Exception e) {}
	}
	}
	};

	project.getWorkspace().run(runnable, null);
	}

	public static void buildProject(final IProject project) throws CoreException {
	buildProject(project, IncrementalProjectBuilder.FULL_BUILD);
	}

	public static void buildProject(final IProject project, final int kind) throws CoreException {
	project.build(kind, null);
	List errors = getBuildErrors(project);
	assertTrue("Build failed for " + project + ": " + errors, errors.isEmpty()); //$NON-NLS-1$ //$NON-NLS-2$
	}

	public static List<String> getBuildErrors(final IProject project) throws CoreException {
	IMarker[] markers = project.findMarkers(
	// IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER, false,
	IMarker.PROBLEM, true,
	IResource.DEPTH_INFINITE);
	List<String> errors = new ArrayList<String>();
	for(int i = 0; i < markers.length; i++) {
	IMarker marker = markers[i];
	if(RuntimeWorkspaceSetup.getInstance().getIsDevLaunchMode() &&
	"plugin.xml".equals(marker.getResource().getName()) && //$NON-NLS-1$
	marker.getResource().getParent() == project) {
	continue;
	}
	if(marker.getAttribute(IMarker.SEVERITY, 0) == IMarker.SEVERITY_ERROR) {
	String message = marker.getResource().getName() +
	" " + marker.getAttribute(IMarker.LINE_NUMBER, "") + //$NON-NLS-1$ //$NON-NLS-2$
	": " + marker.getAttribute(IMarker.MESSAGE, "") + //$NON-NLS-1$ //$NON-NLS-2$
	" " + marker.getAttribute(IMarker.LOCATION, ""); //$NON-NLS-1$ //$NON-NLS-2$
	errors.add(message);
	System.err.println(message);
	}
	}

	return errors;
	}

	public static IProject openExistingProject(final String path) throws CoreException {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	// IPath projectPath = new Path(path);
	IPath descriptionPath = new Path(path + File.separator + ".project"); //$NON-NLS-1$
	IProjectDescription projectDesc = workspace.loadProjectDescription(descriptionPath);
	String projectName = projectDesc == null ? null : projectDesc.getName();
	IProject project = workspace.getRoot().getProject(projectName);

	if (project.exists() && project.isOpen()) {
	return project;
	}

	if (projectDesc == null) {
	projectDesc = workspace.newProjectDescription(projectName);
	if (Platform.getLocation().isPrefixOf(descriptionPath)) {
	projectDesc.setLocation(null);
	} else {
	projectDesc.setLocation(descriptionPath);
	}
	} else {
	projectDesc.setName(projectName);
	}

	try {
	project.create(projectDesc, null);
	project.open(null);
	} catch(CoreException e) {
	e.printStackTrace();
	throw e;
	}

	return project;
	}

	public static void addProject(TestProject testProject, String path) throws Exception {
	String location = TestUtil.getPluginRelativeFolder(path).getAbsolutePath();
	IProject project = TestUtil.openExistingProject(location);
	TestUtil.buildProject(project);
	testProject.addWorkspaceProject(project);
	}

	public static void logQVTStackTrace(QvtRuntimeException e) {
	PrintWriter pw = new PrintWriter(System.err);
	pw.println("QVT stacktrace:"); //$NON-NLS-1$
	e.printQvtStackTrace(pw);
	pw.flush();
	}
	}