org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/packageview/ContentProviderTests2.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2020 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.ui.tests.packageview;

 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;

 import java.io.File;

 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;

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

 import org.eclipse.core.runtime.Path;

 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.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.IClassFile;
 import org.eclipse.jdt.core.ICompilationUnit;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IPackageFragmentRoot;

 import org.eclipse.jdt.internal.ui.util.CoreUtility;


 /**
  * Tests for the PackageExplorerContentProvider.
  *
  * @since 2.1
  */
 public class ContentProviderTests2{

 	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 jdk;

 	private IPackageFragment fPack5;
 	private IJavaProject fJProject3;
 	private IPackageFragment fPack6;
 	private IPackageFragmentRoot fInternalRoot1;
 	private IPackageFragment fA;
 	private IPackageFragment fX;
 	private IPackageFragment fB;
 	private IPackageFragment fC;
 	private IPackageFragment fY;
 	private IFile fFile1;
 	private IFile fFile2;
 	private ICompilationUnit fCU1;
 	private ICompilationUnit fCU2;
 	private IClassFile fYClassFile;

 	private IWorkbenchPage page;
 	private boolean fEnableAutoBuildAfterTesting;

 	@Test
 	public void testGetChildrenProject() throws Exception{
 		Object[] expectedChildren= new Object[]{fPack1, fPack2, fPack3, fRoot1.getPackageFragment(""), fFile1, fFile2,fInternalRoot1,jdk}; //$NON-NLS-1$
 		Object[] children= fProvider.getChildren(fJProject3);
 		assertTrue("Wrong children found for project", compareArrays(children, expectedChildren)); //$NON-NLS-1$
 	}

 	@Test
 	public void testGetChildrentMidLevelFragment() throws Exception{
 		Object[] expectedChildren= new Object[]{fPack4, fPack5};
 		Object[] children= fProvider.getChildren(fPack3);
 		assertTrue("Wrong children found for PackageFragment",compareArrays(children, expectedChildren)); //$NON-NLS-1$
 	}

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

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

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

 	@Test
 	public void testGetChildrenBottomLevelFragment2() throws Exception{
 		Object[] expectedChildren= new Object[]{fCU2};
 		Object[] children= fProvider.getChildren(fPack6);
 		assertTrue("Wrong children found for PackageFragment",compareArrays(children, expectedChildren)); //$NON-NLS-1$
 	}

 	@Test
 	public void testGetChildrenMidLevelFragmentInInternalArchive() throws Exception{
 		Object[] expectedChildren= new Object[]{fC};
 		Object[] children= fProvider.getChildren(fB);
 		assertTrue("wrong children found for a NON bottom PackageFragment in PackageFragmentRoot Internal Archive", compareArrays(children, expectedChildren));//$NON-NLS-1$
 	}

 	@Test
 	public void testGetChildrenBottomLevelFragmentInInternalArchive() throws Exception{
 		Object[] expectedChildren= new Object[]{fYClassFile};
 		Object[] children= fProvider.getChildren(fY);
 		assertTrue("wrong children found for a bottom PackageFragment in PackageFragmentRoot Internal Archive", compareArrays(children, expectedChildren));	//$NON-NLS-1$
 	}

 	public void getChildrenInternalArchive() throws Exception{
 		Object[] expectedChildren= new Object[]{fX,fA, fInternalRoot1.getPackageFragment("")}; //$NON-NLS-1$
 		Object[] children= fProvider.getChildren(fInternalRoot1);
 		assertTrue("Wrong child found for PackageFragmentRoot Internal Archive", compareArrays(children,expectedChildren));//$NON-NLS-1$
 	}

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

 	@Test
 	public void testGetParentArchive() throws Exception{
 		Object parent= fProvider.getParent(fInternalRoot1);
 		assertSame("Wrong parent found for PackageFragmentRoot Archive", parent, fJProject3); //$NON-NLS-1$
 	}

 	@Test
 	public void testGetParentMidLevelFragmentInArchive() throws Exception{
 		Object expectedParent= fB;
 		Object parent= fProvider.getParent(fC);
 		assertEquals("Wrong parent found for a NON top level PackageFragment in an Archive", expectedParent, parent); //$NON-NLS-1$
 	}

 	@Test
 	public void testGetParentTopLevelFragmentInArchive() throws Exception{
 		Object expectedParent= fInternalRoot1;
 		Object parent= fProvider.getParent(fA);
 		assertEquals("Wrong parent found for a top level PackageFragment in an Archive", expectedParent, parent);	 //$NON-NLS-1$
 	}

 	@Test
 	public void testGetParentTopLevelFragment() throws Exception{
 		Object expectedParent= fJProject3;
 		Object parent= fProvider.getParent(fPack3);
 		assertEquals("Wrong parent found for a top level PackageFragment", expectedParent, parent); //$NON-NLS-1$
 	}

 	@Test
 	public void testGetParentMidLevelFragment() throws Exception{
 		Object expectedParent= fPack3;
 		Object parent= fProvider.getParent(fPack5);
 		assertEquals("Wrong parent found for a NON top level PackageFragment", expectedParent, parent); //$NON-NLS-1$
 	}


 	//-------------------Set up methods--------------------------------
 	@Before
 	public void setUp() throws Exception {


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

 		//create project
 		fJProject3= JavaProjectHelper.createJavaProject("TestProject3", "bin"); //$NON-NLS-1$ //$NON-NLS-2$
 		assertNotNull("project3 null", fJProject3); //$NON-NLS-1$

 		for (Object object : fJProject3.getNonJavaResources()) {
 			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);

 		//add rt.jar
 		jdk= JavaProjectHelper.addVariableRTJar(fJProject3, "JRE_LIB_TEST", null, null); //$NON-NLS-1$
 		assertNotNull("jdk not found", jdk); //$NON-NLS-1$

 		//create the PackageFragmentRoot that represents the project as source folder
 		fRoot1= JavaProjectHelper.addSourceContainer(fJProject3, ""); //$NON-NLS-1$
 		assertNotNull("getting default package", fRoot1); //$NON-NLS-1$

 		//set up project #3: file system structure with project as source folder
 		//add an internal jar
 		File myInternalLibJar= JavaTestPlugin.getDefault().getFileInPlugin(new Path("testresources/myinternallib.jar")); //$NON-NLS-1$
 		assertNotNull("lib not found", myInternalLibJar); //$NON-NLS-1$
 		assertTrue("lib not found", myInternalLibJar.exists()); //$NON-NLS-1$
 		fInternalRoot1= JavaProjectHelper.addLibraryWithImport(fJProject3, Path.fromOSString(myInternalLibJar.getPath()), null, null);

 		//create internal PackageFragments
 		fA= fInternalRoot1.getPackageFragment("a"); //$NON-NLS-1$
 		fX= fInternalRoot1.getPackageFragment("x"); //$NON-NLS-1$
 		fB= fInternalRoot1.getPackageFragment("a.b"); //$NON-NLS-1$
 		fC= fInternalRoot1.getPackageFragment("a.b.c"); //$NON-NLS-1$
 		fInternalRoot1.getPackageFragment("a.d"); //$NON-NLS-1$
 		fY= fInternalRoot1.getPackageFragment("x.y"); //$NON-NLS-1$

 		fYClassFile= fY.getClassFile("Y.class"); //$NON-NLS-1$

 		//create PackageFragments
 		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); //$NON-NLS-1$ //$NON-NLS-2$

 		//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;
 			fMyPart.setFolding(false);
 			fMyPart.setFlatLayout(false);
 			// above call might cause a property change event being sent
 			fMyPart.clear();
 			fProvider = (ITreeContentProvider) fMyPart.getTreeViewer().getContentProvider();
 		} else
 			fail("Unable to get view"); //$NON-NLS-1$

 		assertNotNull(fProvider);
 	}

 	@After
 	public void tearDown() throws Exception {
 		fInternalRoot1.close();
 		JavaProjectHelper.delete(fJProject3);
 		page.hideView(fMyPart);

 		if (fEnableAutoBuildAfterTesting)
 			CoreUtility.setAutoBuilding(true);

 	}

 	/**
 	 * 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 (Object child : children) {
 			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 (Object object : expectedChildren) {
 			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 (Object object : expectedChildren) {
 			if (object instanceof IJavaElement) {
 				IJavaElement expfrag= (IJavaElement) object;
 				if(expfrag.equals(fragment))
 					return true;
 			}
 		}
 		return false;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2020 IBM Corporation and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.ui.tests.packageview;

	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertNotNull;
	import static org.junit.Assert.assertSame;
	import static org.junit.Assert.assertTrue;
	import static org.junit.Assert.fail;

	import java.io.File;

	import org.junit.After;
	import org.junit.Before;
	import org.junit.Test;

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

	import org.eclipse.core.runtime.Path;

	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.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.IClassFile;
	import org.eclipse.jdt.core.ICompilationUnit;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IPackageFragmentRoot;

	import org.eclipse.jdt.internal.ui.util.CoreUtility;


	/**
	* Tests for the PackageExplorerContentProvider.
	*
	* @since 2.1
	*/
	public class ContentProviderTests2{

	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 jdk;

	private IPackageFragment fPack5;
	private IJavaProject fJProject3;
	private IPackageFragment fPack6;
	private IPackageFragmentRoot fInternalRoot1;
	private IPackageFragment fA;
	private IPackageFragment fX;
	private IPackageFragment fB;
	private IPackageFragment fC;
	private IPackageFragment fY;
	private IFile fFile1;
	private IFile fFile2;
	private ICompilationUnit fCU1;
	private ICompilationUnit fCU2;
	private IClassFile fYClassFile;

	private IWorkbenchPage page;
	private boolean fEnableAutoBuildAfterTesting;

	@Test
	public void testGetChildrenProject() throws Exception{
	Object[] expectedChildren= new Object[]{fPack1, fPack2, fPack3, fRoot1.getPackageFragment(""), fFile1, fFile2,fInternalRoot1,jdk}; //$NON-NLS-1$
	Object[] children= fProvider.getChildren(fJProject3);
	assertTrue("Wrong children found for project", compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	@Test
	public void testGetChildrentMidLevelFragment() throws Exception{
	Object[] expectedChildren= new Object[]{fPack4, fPack5};
	Object[] children= fProvider.getChildren(fPack3);
	assertTrue("Wrong children found for PackageFragment",compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

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

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

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

	@Test
	public void testGetChildrenBottomLevelFragment2() throws Exception{
	Object[] expectedChildren= new Object[]{fCU2};
	Object[] children= fProvider.getChildren(fPack6);
	assertTrue("Wrong children found for PackageFragment",compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	@Test
	public void testGetChildrenMidLevelFragmentInInternalArchive() throws Exception{
	Object[] expectedChildren= new Object[]{fC};
	Object[] children= fProvider.getChildren(fB);
	assertTrue("wrong children found for a NON bottom PackageFragment in PackageFragmentRoot Internal Archive", compareArrays(children, expectedChildren));//$NON-NLS-1$
	}

	@Test
	public void testGetChildrenBottomLevelFragmentInInternalArchive() throws Exception{
	Object[] expectedChildren= new Object[]{fYClassFile};
	Object[] children= fProvider.getChildren(fY);
	assertTrue("wrong children found for a bottom PackageFragment in PackageFragmentRoot Internal Archive", compareArrays(children, expectedChildren)); //$NON-NLS-1$
	}

	public void getChildrenInternalArchive() throws Exception{
	Object[] expectedChildren= new Object[]{fX,fA, fInternalRoot1.getPackageFragment("")}; //$NON-NLS-1$
	Object[] children= fProvider.getChildren(fInternalRoot1);
	assertTrue("Wrong child found for PackageFragmentRoot Internal Archive", compareArrays(children,expectedChildren));//$NON-NLS-1$
	}

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

	@Test
	public void testGetParentArchive() throws Exception{
	Object parent= fProvider.getParent(fInternalRoot1);
	assertSame("Wrong parent found for PackageFragmentRoot Archive", parent, fJProject3); //$NON-NLS-1$
	}

	@Test
	public void testGetParentMidLevelFragmentInArchive() throws Exception{
	Object expectedParent= fB;
	Object parent= fProvider.getParent(fC);
	assertEquals("Wrong parent found for a NON top level PackageFragment in an Archive", expectedParent, parent); //$NON-NLS-1$
	}

	@Test
	public void testGetParentTopLevelFragmentInArchive() throws Exception{
	Object expectedParent= fInternalRoot1;
	Object parent= fProvider.getParent(fA);
	assertEquals("Wrong parent found for a top level PackageFragment in an Archive", expectedParent, parent); //$NON-NLS-1$
	}

	@Test
	public void testGetParentTopLevelFragment() throws Exception{
	Object expectedParent= fJProject3;
	Object parent= fProvider.getParent(fPack3);
	assertEquals("Wrong parent found for a top level PackageFragment", expectedParent, parent); //$NON-NLS-1$
	}

	@Test
	public void testGetParentMidLevelFragment() throws Exception{
	Object expectedParent= fPack3;
	Object parent= fProvider.getParent(fPack5);
	assertEquals("Wrong parent found for a NON top level PackageFragment", expectedParent, parent); //$NON-NLS-1$
	}


	//-------------------Set up methods--------------------------------
	@Before
	public void setUp() throws Exception {


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

	//create project
	fJProject3= JavaProjectHelper.createJavaProject("TestProject3", "bin"); //$NON-NLS-1$ //$NON-NLS-2$
	assertNotNull("project3 null", fJProject3); //$NON-NLS-1$

	for (Object object : fJProject3.getNonJavaResources()) {
	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);

	//add rt.jar
	jdk= JavaProjectHelper.addVariableRTJar(fJProject3, "JRE_LIB_TEST", null, null); //$NON-NLS-1$
	assertNotNull("jdk not found", jdk); //$NON-NLS-1$

	//create the PackageFragmentRoot that represents the project as source folder
	fRoot1= JavaProjectHelper.addSourceContainer(fJProject3, ""); //$NON-NLS-1$
	assertNotNull("getting default package", fRoot1); //$NON-NLS-1$

	//set up project #3: file system structure with project as source folder
	//add an internal jar
	File myInternalLibJar= JavaTestPlugin.getDefault().getFileInPlugin(new Path("testresources/myinternallib.jar")); //$NON-NLS-1$
	assertNotNull("lib not found", myInternalLibJar); //$NON-NLS-1$
	assertTrue("lib not found", myInternalLibJar.exists()); //$NON-NLS-1$
	fInternalRoot1= JavaProjectHelper.addLibraryWithImport(fJProject3, Path.fromOSString(myInternalLibJar.getPath()), null, null);

	//create internal PackageFragments
	fA= fInternalRoot1.getPackageFragment("a"); //$NON-NLS-1$
	fX= fInternalRoot1.getPackageFragment("x"); //$NON-NLS-1$
	fB= fInternalRoot1.getPackageFragment("a.b"); //$NON-NLS-1$
	fC= fInternalRoot1.getPackageFragment("a.b.c"); //$NON-NLS-1$
	fInternalRoot1.getPackageFragment("a.d"); //$NON-NLS-1$
	fY= fInternalRoot1.getPackageFragment("x.y"); //$NON-NLS-1$

	fYClassFile= fY.getClassFile("Y.class"); //$NON-NLS-1$

	//create PackageFragments
	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); //$NON-NLS-1$ //$NON-NLS-2$

	//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;
	fMyPart.setFolding(false);
	fMyPart.setFlatLayout(false);
	// above call might cause a property change event being sent
	fMyPart.clear();
	fProvider = (ITreeContentProvider) fMyPart.getTreeViewer().getContentProvider();
	} else
	fail("Unable to get view"); //$NON-NLS-1$

	assertNotNull(fProvider);
	}

	@After
	public void tearDown() throws Exception {
	fInternalRoot1.close();
	JavaProjectHelper.delete(fJProject3);
	page.hideView(fMyPart);

	if (fEnableAutoBuildAfterTesting)
	CoreUtility.setAutoBuilding(true);

	}

	/**
	* 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 (Object child : children) {
	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 (Object object : expectedChildren) {
	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 (Object object : expectedChildren) {
	if (object instanceof IJavaElement) {
	IJavaElement expfrag= (IJavaElement) object;
	if(expfrag.equals(fragment))
	return true;
	}
	}
	return false;
	}
	}