org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/packageview/ContentProviderTests3.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.jdt.ui.tests.packageview;

 import java.io.File;

 import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;

 import org.eclipse.jdt.testplugin.JavaProjectHelper;
 import org.eclipse.jdt.testplugin.JavaTestPlugin;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.IWorkspaceDescription;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Path;

 import org.eclipse.jface.viewers.ITreeContentProvider;

 import org.eclipse.ui.IViewPart;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.PlatformUI;

 import org.eclipse.jdt.core.ElementChangedEvent;
 import org.eclipse.jdt.core.ICompilationUnit;
 import org.eclipse.jdt.core.IElementChangedListener;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaElementDelta;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IPackageFragmentRoot;

 /**
  * Tests for the PackageExplorerContentProvider.
  *
  * @since 2.1
  */
 public class ContentProviderTests3 extends TestCase {


 	public static Test suite() {
 		TestSuite suite= new TestSuite("org.eclipse.jdt.ui.tests.ContentProviderTests3"); //$NON-NLS-1$
 		//$JUnit-BEGIN$
 	   suite.addTestSuite(ContentProviderTests3.class);
 		//$JUnit-END$
 		return suite;
 	}


 	private IJavaProject fJProject1;
 	private IJavaProject fJProject2;

 	private IPackageFragmentRoot fRoot1;
 	private IPackageFragment fPack1;
 	private IPackageFragment fPack2;
 	private IPackageFragment fPack4;
 	private IPackageFragment fPack3;
 	private IWorkspace fWorkspace;
 	private IWorkbench fWorkbench;
 	private MockPluginView fMyPart;

 	private ITreeContentProvider fProvider;
 	private IPackageFragmentRoot fArchiveFragmentRoot;
 	private IPackageFragment fPackJunit;
 	private IPackageFragment fPackJunitSamples;
 	private IPackageFragment fPackJunitSamplesMoney;

 	private IPackageFragment fPack5;
 	private IPackageFragment fPack6;
 	private IPackageFragment fPackJunitExtentions;
 	private IPackageFragment fPackJunitFramework;
 	private IPackageFragment fPackJunitRunner;
 	private IPackageFragment fPackJunitTextUi;
 	private IPackageFragment fPackJunitUi;
 	private IPackageFragment fPackJunitTests;

 	private ICompilationUnit fCUIMoney;
 	private ICompilationUnit fCUMoney;
 	private ICompilationUnit fCUMoneyBag;
 	private ICompilationUnit fCUMoneyTest;
 	private ICompilationUnit fCU1;
 	private ICompilationUnit fCU2;
 	private ICompilationUnit fCU3;
 	private IFile fFile1;
 	private IFile fFile2;

 	private IWorkbenchPage page;
 	private IPackageFragmentRoot jdk;
 	private boolean fEnableAutoBuildAfterTesting;

 	public ContentProviderTests3(String name) {
 		super(name);
 	}

 	//---------Test for getChildren-------------------

 	public void testGetChildrenProjectWithSourceFolders() throws Exception{
 		Object[] expectedChildren= new Object[]{fRoot1, fFile1, fFile2, jdk};
 		Object[] children= fProvider.getChildren(fJProject2);
 		assertTrue("Wrong children found for project with folding", compareArrays(children, expectedChildren));//$NON-NLS-1$
 	}


 	public void testGetChildrentMidLevelFragment() throws Exception{
 		Object[] expectedChildren= new Object[]{fPack4, fPack6};
 		Object[] children= fProvider.getChildren(fPack3);
 		assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren));//$NON-NLS-1$
 	}

 	public void testGetChildrenBottomLevelFragment() throws Exception{
 		Object[] expectedChildren= new Object[]{};
 		Object[] children= fProvider.getChildren(fPack1);
 		assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren));//$NON-NLS-1$

 	}

 	public void testGetChildrenBottomLevelFragmentWithCU() throws Exception{
 		Object[] expectedChildren= new Object[]{fCU1};
 		Object[] children= fProvider.getChildren(fPack2);
 		assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren));	//$NON-NLS-1$
 	}

 	public void testGetChildrenBottomLevelFragmentInArchive() throws Exception{
 		Object[] expectedChildren= new Object[]{fCUIMoney, fCUMoney, fCUMoneyBag, fCUMoneyTest};
 		Object[] children= fProvider.getChildren(fPackJunitSamplesMoney);
 		assertTrue("wrong children found for a bottom PackageFragment in PackageFragmentRoot Archive with folding", compareArrays(children, expectedChildren));	//$NON-NLS-1$
 	}

 	public void testGetChildrenSource() throws Exception{
 		Object[] expectedChildren= new Object[]{fPack1,fPack2,fPack3, fRoot1.getPackageFragment("")};//$NON-NLS-1$
 		Object[] children= fProvider.getChildren(fRoot1);
 		assertTrue("Wrong children found for PackageFragmentRoot with folding", compareArrays(children, expectedChildren));	//$NON-NLS-1$
 	}

 	public void testGetChildrenArchive(){
 		Object[] expectedChildren= new Object[]{fPackJunit, fArchiveFragmentRoot.getPackageFragment("")};//$NON-NLS-1$
 		Object[] children= fProvider.getChildren(fArchiveFragmentRoot);
 		assertTrue("Wrong child found for PackageFragmentRoot Archive with folding", compareArrays(children,expectedChildren));//$NON-NLS-1$

 	}

 	//---------------Get Parent Tests-----------------------------

 	public void testGetParentArchive() throws Exception{
 		Object parent= fProvider.getParent(fArchiveFragmentRoot);
 		assertTrue("Wrong parent found for PackageFragmentRoot Archive with folding", parent==fJProject1);//$NON-NLS-1$
 	}

 	public void testGetParentTopLevelFragmentInArchive() throws Exception{
 		Object expectedParent= fPackJunit;
 		Object parent= fProvider.getParent(fPackJunitSamples);
 		assertTrue("Wrong parent found for a top level PackageFragment in an Archive with folding", expectedParent.equals(parent));	//$NON-NLS-1$
 	}

 	public void testGetParentTopLevelFragment() throws Exception{
 		Object expectedParent= fRoot1;
 		Object parent= fProvider.getParent(fPack3);
 		assertTrue("Wrong parent found for a top level PackageFragment with folding", expectedParent.equals(parent)); //$NON-NLS-1$
 	}

 	public void testGetParentFoldedBottomFragment() throws Exception{
 		Object expectedParent= fRoot1;
 		Object parent= fProvider.getParent(fPack3);
 		assertTrue("Wrong parent found for a top level PackageFragment with folding", expectedParent.equals(parent));//$NON-NLS-1$

 	}

 	public void testGetParentMidLevelFragment() throws Exception{
 		Object expectedParent= fPack3;
 		Object parent= fProvider.getParent(fPack4);
 		assertTrue("Wrong parent found for a NON top level PackageFragment with folding", expectedParent.equals(parent));//$NON-NLS-1$
 	}

 	public void testDeleteBottomLevelFragmentFolding() throws Exception {

 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createDelta(fPack4, IJavaElementDelta.REMOVED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from dispaly
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertTrue("Refresh happened", fMyPart.hasRefreshHappened()); //$NON-NLS-1$
 		assertTrue("Correct Refresh", fMyPart.wasObjectRefreshed(fRoot1)); //$NON-NLS-1$
 		assertTrue("Single refresh", fMyPart.getRefreshedObject().size() == 1); //$NON-NLS-1$
 	}

 	public void testAddBottomLevelFragmentFolding() throws Exception {
 		IPackageFragment test= fRoot1.createPackageFragment("test", true, null); //$NON-NLS-1$

 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createDelta(test, IJavaElementDelta.ADDED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from dispaly
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertTrue("Refresh happened", fMyPart.hasRefreshHappened()); //$NON-NLS-1$
 		assertTrue("Correct Refresh", fMyPart.wasObjectRefreshed(fRoot1)); //$NON-NLS-1$
 		assertTrue("Single refreshe", fMyPart.getRefreshedObject().size() == 1); //$NON-NLS-1$
 	}

 	public void testChangedTopLevelPackageFragmentFolding() throws Exception {
 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createDelta(fPack3, IJavaElementDelta.CHANGED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from dispaly
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertEquals("No refreshs", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
 	}

 	public void testChangeBottomLevelPackageFragmentFolding() throws Exception {
 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createDelta(fPack6, IJavaElementDelta.CHANGED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from dispaly
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertEquals("No refreshs",0,  fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
 	}

 	public void testRemoveCUsFromPackageFragment() throws Exception{

 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createCUDelta(new ICompilationUnit[] { fCU2, fCU3 }, fPack6, IJavaElementDelta.REMOVED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from display
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertTrue("Remove happened", fMyPart.hasRemoveHappened()); //$NON-NLS-1$
 		assertEquals("2 elements removed", 2, fMyPart.getRemovedObject().size()); //$NON-NLS-1$
 		assertTrue("Correct elements removed", fMyPart.getRemovedObject().contains(fCU2) && fMyPart.getRemovedObject().contains(fCU3)); //$NON-NLS-1$
 		assertEquals("No refreshes", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
 	}

 	public void testRemoveCUFromPackageFragment() throws Exception {

 		//send a delta indicating fragment deleted
 		IElementChangedListener listener= (IElementChangedListener) fProvider;
 		IJavaElementDelta delta= TestDelta.createCUDelta(new ICompilationUnit[]{fCU2}, fPack6, IJavaElementDelta.REMOVED);
 		listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

 		//force events from display
 		while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

 		assertTrue("Remove happened", fMyPart.hasRemoveHappened()); //$NON-NLS-1$
 		assertTrue("Correct refresh", fMyPart.getRemovedObject().contains(fCU2)); //$NON-NLS-1$
 		assertEquals("No refreshes", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
 	}


 	/*
 	 * @see TestCase#setUp()
 	 */
 	protected void setUp() throws Exception {
 		super.setUp();

 		fWorkspace= ResourcesPlugin.getWorkspace();
 		assertNotNull(fWorkspace);
 		IWorkspaceDescription workspaceDesc= fWorkspace.getDescription();
 		fEnableAutoBuildAfterTesting= workspaceDesc.isAutoBuilding();
 		if (fEnableAutoBuildAfterTesting)
 			JavaProjectHelper.setAutoBuilding(false);

 		fJProject1= JavaProjectHelper.createJavaProject("TestProject1", "bin");//$NON-NLS-1$//$NON-NLS-2$
 		fJProject2= JavaProjectHelper.createJavaProject("TestProject2", "bin");//$NON-NLS-1$//$NON-NLS-2$

 		assertNotNull("project1 null", fJProject1);//$NON-NLS-1$
 		assertNotNull("project2 null", fJProject2);//$NON-NLS-1$

 		Object[] resource= fJProject2.getNonJavaResources();
 		for (int i = 0; i < resource.length; i++) {
 			Object object = resource[i];
 			if(object instanceof IFile){
 				IFile file = (IFile) object;
 				if(".classpath".equals(file.getName()))//$NON-NLS-1$
 					fFile1= file;
 				else if (".project".equals(file.getName()))//$NON-NLS-1$
 					fFile2= file;
 			}
 		}
 		assertNotNull(fFile1);
 		assertNotNull(fFile2);

 		//set up project #1 : External Jar and zip file
 		jdk= JavaProjectHelper.addVariableRTJar(fJProject1, "JRE_LIB_TEST", null, null);//$NON-NLS-1$
 		assertTrue("jdk not found", jdk != null);//$NON-NLS-1$

 		File junitSrcArchive= JavaTestPlugin.getDefault().getFileInPlugin(JavaProjectHelper.JUNIT_SRC);

 		assertTrue("junit src not found", junitSrcArchive != null && junitSrcArchive.exists());//$NON-NLS-1$

 		fArchiveFragmentRoot= JavaProjectHelper.addSourceContainerWithImport(fJProject1, "src", junitSrcArchive);//$NON-NLS-1$

 		fPackJunit= fArchiveFragmentRoot.getPackageFragment("junit");//$NON-NLS-1$
 		fPackJunitSamples= fArchiveFragmentRoot.getPackageFragment("junit.samples");//$NON-NLS-1$
 		fPackJunitSamplesMoney= fArchiveFragmentRoot.getPackageFragment("junit.samples.money");//$NON-NLS-1$
 		fPackJunitExtentions= fArchiveFragmentRoot.getPackageFragment("junit.extensions");//$NON-NLS-1$
 		fPackJunitFramework= fArchiveFragmentRoot.getPackageFragment("junit.framework");//$NON-NLS-1$
 		fPackJunitRunner= fArchiveFragmentRoot.getPackageFragment("junit.runner");//$NON-NLS-1$
 		fPackJunitTests= fArchiveFragmentRoot.getPackageFragment("junit.tests");//$NON-NLS-1$
 		fPackJunitTextUi= fArchiveFragmentRoot.getPackageFragment("junit.textui");//$NON-NLS-1$
 		fPackJunitUi= fArchiveFragmentRoot.getPackageFragment("junit.ui");//$NON-NLS-1$

 		assertNotNull("creating fPackJunit", fPackJunit);//$NON-NLS-1$
 		assertNotNull("creating fPackJunitSamples", fPackJunitSamples);//$NON-NLS-1$
 		assertNotNull("creating fPackJunitSamplesMoney",fPackJunitSamplesMoney);//$NON-NLS-1$
 		assertNotNull("", fPackJunitExtentions);//$NON-NLS-1$
 		assertNotNull("",fPackJunitFramework);//$NON-NLS-1$
 		assertNotNull("",fPackJunitRunner);//$NON-NLS-1$
 		assertNotNull("",fPackJunitTests);//$NON-NLS-1$
 		assertNotNull("",fPackJunitTextUi);//$NON-NLS-1$
 		assertNotNull("",fPackJunitUi);//$NON-NLS-1$

 		fCUIMoney= fPackJunitSamplesMoney.getCompilationUnit("IMoney.java");//$NON-NLS-1$
 		fCUMoney= fPackJunitSamplesMoney.getCompilationUnit("Money.java");//$NON-NLS-1$
 		fCUMoneyBag= fPackJunitSamplesMoney.getCompilationUnit("MoneyBag.java");//$NON-NLS-1$
 		fCUMoneyTest= fPackJunitSamplesMoney.getCompilationUnit("MoneyTest.java");//$NON-NLS-1$

 		File mylibJar= JavaTestPlugin.getDefault().getFileInPlugin(JavaProjectHelper.MYLIB);
 		assertTrue("lib not found", mylibJar != null && mylibJar.exists());//$NON-NLS-1$
 		JavaProjectHelper.addLibraryWithImport(fJProject1, new Path(mylibJar.getPath()), null, null);

 		//set up project #2: file system structure with in a source folder

 		JavaProjectHelper.addVariableEntry(fJProject2, new Path("JRE_LIB_TEST"), null, null);//$NON-NLS-1$

 		fRoot1= JavaProjectHelper.addSourceContainer(fJProject2, "src1");//$NON-NLS-1$
 		fPack1= fRoot1.createPackageFragment("pack1", true, null);//$NON-NLS-1$
 		fPack2= fRoot1.createPackageFragment("pack2", true, null);//$NON-NLS-1$
 		fPack3= fRoot1.createPackageFragment("pack3",true,null);//$NON-NLS-1$
 		fPack4= fRoot1.createPackageFragment("pack3.pack4", true,null);//$NON-NLS-1$
 		fPack5= fRoot1.createPackageFragment("pack3.pack5",true,null);//$NON-NLS-1$
 		fPack6= fRoot1.createPackageFragment("pack3.pack5.pack6", true, null);//$NON-NLS-1$

 		fCU1= fPack2.createCompilationUnit("Object.java", "", true, null);//$NON-NLS-1$//$NON-NLS-2$
 		fCU2= fPack6.createCompilationUnit("Object.java","", true, null);//$NON-NLS-1$//$NON-NLS-2$
 		fCU3= fPack6.createCompilationUnit("Jen.java","", true,null);//$NON-NLS-1$//$NON-NLS-2$

 		//set up the mock view
 		setUpMockView();
 	}

 	public void setUpMockView() throws Exception{


 //		fWorkspace= ResourcesPlugin.getWorkspace();
 //		assertNotNull(fWorkspace);

 		fWorkbench= PlatformUI.getWorkbench();
 		assertNotNull(fWorkbench);

 		page= fWorkbench.getActiveWorkbenchWindow().getActivePage();
 		assertNotNull(page);

 		//just testing to make sure my part can be created
 		IViewPart myPart= new MockPluginView();
 		assertNotNull(myPart);

 		myPart= page.showView("org.eclipse.jdt.ui.tests.packageview.MockPluginView");//$NON-NLS-1$
 		if (myPart instanceof MockPluginView) {
 			fMyPart= (MockPluginView) myPart;
 			//turn on folding
 			fMyPart.setFolding(true);
 			// above call might cause a property change event being sent
 			fMyPart.fRefreshedObjects.clear();
 			fProvider= (ITreeContentProvider)fMyPart.getTreeViewer().getContentProvider();

 		}else assertTrue("Unable to get view",false);//$NON-NLS-1$

 		assertNotNull(fProvider);
 	}

 	/**
 	 * @see TestCase#tearDown()
 	 */
 	protected void tearDown() throws Exception {
 		fArchiveFragmentRoot.close();
 		JavaProjectHelper.delete(fJProject1);
 		JavaProjectHelper.delete(fJProject2);
 		page.hideView(fMyPart);
 		fMyPart.dispose();

 		if (fEnableAutoBuildAfterTesting)
 			JavaProjectHelper.setAutoBuilding(true);

 		super.tearDown();
 	}

 	/**
 	 * Method compareArrays. Both arrays must be of IPackageFragments or compare will fail.
 	 * @param children
 	 * @param expectedChildren
 	 * @return boolean
 	 */
 	private boolean compareArrays(Object[] children, Object[] expectedChildren) {
 		if(children.length!=expectedChildren.length)
 			return false;
 		for (int i= 0; i < children.length; i++) {
 			Object child= children[i];
 			if (child instanceof IJavaElement) {
 				IJavaElement el= (IJavaElement) child;
 				if(!contains(el, expectedChildren))
 					return false;
 			} else if(child instanceof IResource){
 				IResource res = (IResource) child;
 				if(!contains(res, expectedChildren)){
 					return false;
 				}
 			}
 		}
 		return true;
 	}
 	/**
 	 * Method contains.
 	 * @param res
 	 * @param expectedChildren
 	 * @return boolean
 	 */
 	private boolean contains(IResource res, Object[] expectedChildren) {
 		for (int i= 0; i < expectedChildren.length; i++) {
 			Object object= expectedChildren[i];
 			if (object instanceof IResource) {
 				IResource expres= (IResource) object;
 				if(expres.equals(res))
 					return true;
 			}
 		}
 		return false;
 	}

 	/**
 	 * Method contains.
 	 * @param fragment
 	 * @param expectedChildren
 	 * @return boolean
 	 */
 	private boolean contains(IJavaElement fragment, Object[] expectedChildren) {
 		for (int i= 0; i < expectedChildren.length; i++) {
 			Object object= expectedChildren[i];
 			if (object instanceof IJavaElement) {
 				IJavaElement expfrag= (IJavaElement) object;
 				if(expfrag.equals(fragment))
 					return true;
 			}
 		}
 		return false;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/

	package org.eclipse.jdt.ui.tests.packageview;

	import java.io.File;

	import junit.framework.Test;
	import junit.framework.TestCase;
	import junit.framework.TestSuite;

	import org.eclipse.jdt.testplugin.JavaProjectHelper;
	import org.eclipse.jdt.testplugin.JavaTestPlugin;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.IWorkspaceDescription;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.Path;

	import org.eclipse.jface.viewers.ITreeContentProvider;

	import org.eclipse.ui.IViewPart;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.PlatformUI;

	import org.eclipse.jdt.core.ElementChangedEvent;
	import org.eclipse.jdt.core.ICompilationUnit;
	import org.eclipse.jdt.core.IElementChangedListener;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaElementDelta;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IPackageFragmentRoot;

	/**
	* Tests for the PackageExplorerContentProvider.
	*
	* @since 2.1
	*/
	public class ContentProviderTests3 extends TestCase {


	public static Test suite() {
	TestSuite suite= new TestSuite("org.eclipse.jdt.ui.tests.ContentProviderTests3"); //$NON-NLS-1$
	//$JUnit-BEGIN$
	suite.addTestSuite(ContentProviderTests3.class);
	//$JUnit-END$
	return suite;
	}


	private IJavaProject fJProject1;
	private IJavaProject fJProject2;

	private IPackageFragmentRoot fRoot1;
	private IPackageFragment fPack1;
	private IPackageFragment fPack2;
	private IPackageFragment fPack4;
	private IPackageFragment fPack3;
	private IWorkspace fWorkspace;
	private IWorkbench fWorkbench;
	private MockPluginView fMyPart;

	private ITreeContentProvider fProvider;
	private IPackageFragmentRoot fArchiveFragmentRoot;
	private IPackageFragment fPackJunit;
	private IPackageFragment fPackJunitSamples;
	private IPackageFragment fPackJunitSamplesMoney;

	private IPackageFragment fPack5;
	private IPackageFragment fPack6;
	private IPackageFragment fPackJunitExtentions;
	private IPackageFragment fPackJunitFramework;
	private IPackageFragment fPackJunitRunner;
	private IPackageFragment fPackJunitTextUi;
	private IPackageFragment fPackJunitUi;
	private IPackageFragment fPackJunitTests;

	private ICompilationUnit fCUIMoney;
	private ICompilationUnit fCUMoney;
	private ICompilationUnit fCUMoneyBag;
	private ICompilationUnit fCUMoneyTest;
	private ICompilationUnit fCU1;
	private ICompilationUnit fCU2;
	private ICompilationUnit fCU3;
	private IFile fFile1;
	private IFile fFile2;

	private IWorkbenchPage page;
	private IPackageFragmentRoot jdk;
	private boolean fEnableAutoBuildAfterTesting;

	public ContentProviderTests3(String name) {
	super(name);
	}

	//---------Test for getChildren-------------------

	public void testGetChildrenProjectWithSourceFolders() throws Exception{
	Object[] expectedChildren= new Object[]{fRoot1, fFile1, fFile2, jdk};
	Object[] children= fProvider.getChildren(fJProject2);
	assertTrue("Wrong children found for project with folding", compareArrays(children, expectedChildren));//$NON-NLS-1$
	}


	public void testGetChildrentMidLevelFragment() throws Exception{
	Object[] expectedChildren= new Object[]{fPack4, fPack6};
	Object[] children= fProvider.getChildren(fPack3);
	assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren));//$NON-NLS-1$
	}

	public void testGetChildrenBottomLevelFragment() throws Exception{
	Object[] expectedChildren= new Object[]{};
	Object[] children= fProvider.getChildren(fPack1);
	assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren));//$NON-NLS-1$

	}

	public void testGetChildrenBottomLevelFragmentWithCU() throws Exception{
	Object[] expectedChildren= new Object[]{fCU1};
	Object[] children= fProvider.getChildren(fPack2);
	assertTrue("Wrong children found for PackageFragment with folding",compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	public void testGetChildrenBottomLevelFragmentInArchive() throws Exception{
	Object[] expectedChildren= new Object[]{fCUIMoney, fCUMoney, fCUMoneyBag, fCUMoneyTest};
	Object[] children= fProvider.getChildren(fPackJunitSamplesMoney);
	assertTrue("wrong children found for a bottom PackageFragment in PackageFragmentRoot Archive with folding", compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	public void testGetChildrenSource() throws Exception{
	Object[] expectedChildren= new Object[]{fPack1,fPack2,fPack3, fRoot1.getPackageFragment("")};//$NON-NLS-1$
	Object[] children= fProvider.getChildren(fRoot1);
	assertTrue("Wrong children found for PackageFragmentRoot with folding", compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	public void testGetChildrenArchive(){
	Object[] expectedChildren= new Object[]{fPackJunit, fArchiveFragmentRoot.getPackageFragment("")};//$NON-NLS-1$
	Object[] children= fProvider.getChildren(fArchiveFragmentRoot);
	assertTrue("Wrong child found for PackageFragmentRoot Archive with folding", compareArrays(children,expectedChildren));//$NON-NLS-1$

	}

	//---------------Get Parent Tests-----------------------------

	public void testGetParentArchive() throws Exception{
	Object parent= fProvider.getParent(fArchiveFragmentRoot);
	assertTrue("Wrong parent found for PackageFragmentRoot Archive with folding", parent==fJProject1);//$NON-NLS-1$
	}

	public void testGetParentTopLevelFragmentInArchive() throws Exception{
	Object expectedParent= fPackJunit;
	Object parent= fProvider.getParent(fPackJunitSamples);
	assertTrue("Wrong parent found for a top level PackageFragment in an Archive with folding", expectedParent.equals(parent)); //$NON-NLS-1$
	}

	public void testGetParentTopLevelFragment() throws Exception{
	Object expectedParent= fRoot1;
	Object parent= fProvider.getParent(fPack3);
	assertTrue("Wrong parent found for a top level PackageFragment with folding", expectedParent.equals(parent)); //$NON-NLS-1$
	}

	public void testGetParentFoldedBottomFragment() throws Exception{
	Object expectedParent= fRoot1;
	Object parent= fProvider.getParent(fPack3);
	assertTrue("Wrong parent found for a top level PackageFragment with folding", expectedParent.equals(parent));//$NON-NLS-1$

	}

	public void testGetParentMidLevelFragment() throws Exception{
	Object expectedParent= fPack3;
	Object parent= fProvider.getParent(fPack4);
	assertTrue("Wrong parent found for a NON top level PackageFragment with folding", expectedParent.equals(parent));//$NON-NLS-1$
	}

	public void testDeleteBottomLevelFragmentFolding() throws Exception {

	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createDelta(fPack4, IJavaElementDelta.REMOVED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from dispaly
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertTrue("Refresh happened", fMyPart.hasRefreshHappened()); //$NON-NLS-1$
	assertTrue("Correct Refresh", fMyPart.wasObjectRefreshed(fRoot1)); //$NON-NLS-1$
	assertTrue("Single refresh", fMyPart.getRefreshedObject().size() == 1); //$NON-NLS-1$
	}

	public void testAddBottomLevelFragmentFolding() throws Exception {
	IPackageFragment test= fRoot1.createPackageFragment("test", true, null); //$NON-NLS-1$

	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createDelta(test, IJavaElementDelta.ADDED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from dispaly
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertTrue("Refresh happened", fMyPart.hasRefreshHappened()); //$NON-NLS-1$
	assertTrue("Correct Refresh", fMyPart.wasObjectRefreshed(fRoot1)); //$NON-NLS-1$
	assertTrue("Single refreshe", fMyPart.getRefreshedObject().size() == 1); //$NON-NLS-1$
	}

	public void testChangedTopLevelPackageFragmentFolding() throws Exception {
	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createDelta(fPack3, IJavaElementDelta.CHANGED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from dispaly
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertEquals("No refreshs", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
	}

	public void testChangeBottomLevelPackageFragmentFolding() throws Exception {
	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createDelta(fPack6, IJavaElementDelta.CHANGED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from dispaly
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertEquals("No refreshs",0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
	}

	public void testRemoveCUsFromPackageFragment() throws Exception{

	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createCUDelta(new ICompilationUnit[] { fCU2, fCU3 }, fPack6, IJavaElementDelta.REMOVED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from display
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertTrue("Remove happened", fMyPart.hasRemoveHappened()); //$NON-NLS-1$
	assertEquals("2 elements removed", 2, fMyPart.getRemovedObject().size()); //$NON-NLS-1$
	assertTrue("Correct elements removed", fMyPart.getRemovedObject().contains(fCU2) && fMyPart.getRemovedObject().contains(fCU3)); //$NON-NLS-1$
	assertEquals("No refreshes", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
	}

	public void testRemoveCUFromPackageFragment() throws Exception {

	//send a delta indicating fragment deleted
	IElementChangedListener listener= (IElementChangedListener) fProvider;
	IJavaElementDelta delta= TestDelta.createCUDelta(new ICompilationUnit[]{fCU2}, fPack6, IJavaElementDelta.REMOVED);
	listener.elementChanged(new ElementChangedEvent(delta, ElementChangedEvent.POST_CHANGE));

	//force events from display
	while(fMyPart.getTreeViewer().getControl().getDisplay().readAndDispatch());

	assertTrue("Remove happened", fMyPart.hasRemoveHappened()); //$NON-NLS-1$
	assertTrue("Correct refresh", fMyPart.getRemovedObject().contains(fCU2)); //$NON-NLS-1$
	assertEquals("No refreshes", 0, fMyPart.getRefreshedObject().size()); //$NON-NLS-1$
	}


	/*
	* @see TestCase#setUp()
	*/
	protected void setUp() throws Exception {
	super.setUp();

	fWorkspace= ResourcesPlugin.getWorkspace();
	assertNotNull(fWorkspace);
	IWorkspaceDescription workspaceDesc= fWorkspace.getDescription();
	fEnableAutoBuildAfterTesting= workspaceDesc.isAutoBuilding();
	if (fEnableAutoBuildAfterTesting)
	JavaProjectHelper.setAutoBuilding(false);

	fJProject1= JavaProjectHelper.createJavaProject("TestProject1", "bin");//$NON-NLS-1$//$NON-NLS-2$
	fJProject2= JavaProjectHelper.createJavaProject("TestProject2", "bin");//$NON-NLS-1$//$NON-NLS-2$

	assertNotNull("project1 null", fJProject1);//$NON-NLS-1$
	assertNotNull("project2 null", fJProject2);//$NON-NLS-1$

	Object[] resource= fJProject2.getNonJavaResources();
	for (int i = 0; i < resource.length; i++) {
	Object object = resource[i];
	if(object instanceof IFile){
	IFile file = (IFile) object;
	if(".classpath".equals(file.getName()))//$NON-NLS-1$
	fFile1= file;
	else if (".project".equals(file.getName()))//$NON-NLS-1$
	fFile2= file;
	}
	}
	assertNotNull(fFile1);
	assertNotNull(fFile2);

	//set up project #1 : External Jar and zip file
	jdk= JavaProjectHelper.addVariableRTJar(fJProject1, "JRE_LIB_TEST", null, null);//$NON-NLS-1$
	assertTrue("jdk not found", jdk != null);//$NON-NLS-1$

	File junitSrcArchive= JavaTestPlugin.getDefault().getFileInPlugin(JavaProjectHelper.JUNIT_SRC);

	assertTrue("junit src not found", junitSrcArchive != null && junitSrcArchive.exists());//$NON-NLS-1$

	fArchiveFragmentRoot= JavaProjectHelper.addSourceContainerWithImport(fJProject1, "src", junitSrcArchive);//$NON-NLS-1$

	fPackJunit= fArchiveFragmentRoot.getPackageFragment("junit");//$NON-NLS-1$
	fPackJunitSamples= fArchiveFragmentRoot.getPackageFragment("junit.samples");//$NON-NLS-1$
	fPackJunitSamplesMoney= fArchiveFragmentRoot.getPackageFragment("junit.samples.money");//$NON-NLS-1$
	fPackJunitExtentions= fArchiveFragmentRoot.getPackageFragment("junit.extensions");//$NON-NLS-1$
	fPackJunitFramework= fArchiveFragmentRoot.getPackageFragment("junit.framework");//$NON-NLS-1$
	fPackJunitRunner= fArchiveFragmentRoot.getPackageFragment("junit.runner");//$NON-NLS-1$
	fPackJunitTests= fArchiveFragmentRoot.getPackageFragment("junit.tests");//$NON-NLS-1$
	fPackJunitTextUi= fArchiveFragmentRoot.getPackageFragment("junit.textui");//$NON-NLS-1$
	fPackJunitUi= fArchiveFragmentRoot.getPackageFragment("junit.ui");//$NON-NLS-1$

	assertNotNull("creating fPackJunit", fPackJunit);//$NON-NLS-1$
	assertNotNull("creating fPackJunitSamples", fPackJunitSamples);//$NON-NLS-1$
	assertNotNull("creating fPackJunitSamplesMoney",fPackJunitSamplesMoney);//$NON-NLS-1$
	assertNotNull("", fPackJunitExtentions);//$NON-NLS-1$
	assertNotNull("",fPackJunitFramework);//$NON-NLS-1$
	assertNotNull("",fPackJunitRunner);//$NON-NLS-1$
	assertNotNull("",fPackJunitTests);//$NON-NLS-1$
	assertNotNull("",fPackJunitTextUi);//$NON-NLS-1$
	assertNotNull("",fPackJunitUi);//$NON-NLS-1$

	fCUIMoney= fPackJunitSamplesMoney.getCompilationUnit("IMoney.java");//$NON-NLS-1$
	fCUMoney= fPackJunitSamplesMoney.getCompilationUnit("Money.java");//$NON-NLS-1$
	fCUMoneyBag= fPackJunitSamplesMoney.getCompilationUnit("MoneyBag.java");//$NON-NLS-1$
	fCUMoneyTest= fPackJunitSamplesMoney.getCompilationUnit("MoneyTest.java");//$NON-NLS-1$

	File mylibJar= JavaTestPlugin.getDefault().getFileInPlugin(JavaProjectHelper.MYLIB);
	assertTrue("lib not found", mylibJar != null && mylibJar.exists());//$NON-NLS-1$
	JavaProjectHelper.addLibraryWithImport(fJProject1, new Path(mylibJar.getPath()), null, null);

	//set up project #2: file system structure with in a source folder

	JavaProjectHelper.addVariableEntry(fJProject2, new Path("JRE_LIB_TEST"), null, null);//$NON-NLS-1$

	fRoot1= JavaProjectHelper.addSourceContainer(fJProject2, "src1");//$NON-NLS-1$
	fPack1= fRoot1.createPackageFragment("pack1", true, null);//$NON-NLS-1$
	fPack2= fRoot1.createPackageFragment("pack2", true, null);//$NON-NLS-1$
	fPack3= fRoot1.createPackageFragment("pack3",true,null);//$NON-NLS-1$
	fPack4= fRoot1.createPackageFragment("pack3.pack4", true,null);//$NON-NLS-1$
	fPack5= fRoot1.createPackageFragment("pack3.pack5",true,null);//$NON-NLS-1$
	fPack6= fRoot1.createPackageFragment("pack3.pack5.pack6", true, null);//$NON-NLS-1$

	fCU1= fPack2.createCompilationUnit("Object.java", "", true, null);//$NON-NLS-1$//$NON-NLS-2$
	fCU2= fPack6.createCompilationUnit("Object.java","", true, null);//$NON-NLS-1$//$NON-NLS-2$
	fCU3= fPack6.createCompilationUnit("Jen.java","", true,null);//$NON-NLS-1$//$NON-NLS-2$

	//set up the mock view
	setUpMockView();
	}

	public void setUpMockView() throws Exception{


	// fWorkspace= ResourcesPlugin.getWorkspace();
	// assertNotNull(fWorkspace);

	fWorkbench= PlatformUI.getWorkbench();
	assertNotNull(fWorkbench);

	page= fWorkbench.getActiveWorkbenchWindow().getActivePage();
	assertNotNull(page);

	//just testing to make sure my part can be created
	IViewPart myPart= new MockPluginView();
	assertNotNull(myPart);

	myPart= page.showView("org.eclipse.jdt.ui.tests.packageview.MockPluginView");//$NON-NLS-1$
	if (myPart instanceof MockPluginView) {
	fMyPart= (MockPluginView) myPart;
	//turn on folding
	fMyPart.setFolding(true);
	// above call might cause a property change event being sent
	fMyPart.fRefreshedObjects.clear();
	fProvider= (ITreeContentProvider)fMyPart.getTreeViewer().getContentProvider();

	}else assertTrue("Unable to get view",false);//$NON-NLS-1$

	assertNotNull(fProvider);
	}

	/**
	* @see TestCase#tearDown()
	*/
	protected void tearDown() throws Exception {
	fArchiveFragmentRoot.close();
	JavaProjectHelper.delete(fJProject1);
	JavaProjectHelper.delete(fJProject2);
	page.hideView(fMyPart);
	fMyPart.dispose();

	if (fEnableAutoBuildAfterTesting)
	JavaProjectHelper.setAutoBuilding(true);

	super.tearDown();
	}

	/**
	* Method compareArrays. Both arrays must be of IPackageFragments or compare will fail.
	* @param children
	* @param expectedChildren
	* @return boolean
	*/
	private boolean compareArrays(Object[] children, Object[] expectedChildren) {
	if(children.length!=expectedChildren.length)
	return false;
	for (int i= 0; i < children.length; i++) {
	Object child= children[i];
	if (child instanceof IJavaElement) {
	IJavaElement el= (IJavaElement) child;
	if(!contains(el, expectedChildren))
	return false;
	} else if(child instanceof IResource){
	IResource res = (IResource) child;
	if(!contains(res, expectedChildren)){
	return false;
	}
	}
	}
	return true;
	}
	/**
	* Method contains.
	* @param res
	* @param expectedChildren
	* @return boolean
	*/
	private boolean contains(IResource res, Object[] expectedChildren) {
	for (int i= 0; i < expectedChildren.length; i++) {
	Object object= expectedChildren[i];
	if (object instanceof IResource) {
	IResource expres= (IResource) object;
	if(expres.equals(res))
	return true;
	}
	}
	return false;
	}

	/**
	* Method contains.
	* @param fragment
	* @param expectedChildren
	* @return boolean
	*/
	private boolean contains(IJavaElement fragment, Object[] expectedChildren) {
	for (int i= 0; i < expectedChildren.length; i++) {
	Object object= expectedChildren[i];
	if (object instanceof IJavaElement) {
	IJavaElement expfrag= (IJavaElement) object;
	if(expfrag.equals(fragment))
	return true;
	}
	}
	return false;
	}

	}