tests/org.eclipse.wst.css.ui.tests/src/org/eclipse/wst/css/ui/tests/contentassist/TestCSSContentAssistComputers.java - sourceediting/webtools.sourceediting.tests - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010, 2012 IBM Corporation and others.
  * 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:
  *     IBM Corporation - initial API and implementation
  *
  *******************************************************************************/
 package org.eclipse.wst.css.ui.tests.contentassist;

 import java.lang.reflect.Method;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;

 import junit.extensions.TestSetup;
 import junit.framework.Assert;
 import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.contentassist.ContentAssistant;
 import org.eclipse.jface.text.contentassist.ICompletionProposal;
 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension5;
 import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.wst.css.ui.StructuredTextViewerConfigurationCSS;
 import org.eclipse.wst.css.ui.tests.ProjectUtil;
 import org.eclipse.wst.sse.core.utils.StringUtils;
 import org.eclipse.wst.sse.ui.StructuredTextEditor;
 import org.eclipse.wst.sse.ui.internal.StructuredTextViewer;

 public class TestCSSContentAssistComputers extends TestCase {
 	/** The name of the project that all of these tests will use */
 	private static final String PROJECT_NAME = "TestCSSContentAssistComputers";

 	/** so we don't have to depend on JSDT */
 	private static final String JAVA_SCRIPT_NATURE_ID = "org.eclipse.wst.jsdt.core.jsNature";

 	/** The location of the testing files */
 	private static final String PROJECT_FILES = "/testresources/contentassist";

 	/** The project that all of the tests use */
 	private static IProject fProject;

 	/**
 	 * Used to keep track of the already open editors so that the tests don't go through
 	 * the trouble of opening the same editors over and over again
 	 */
 	private static Map fFileToEditorMap = new HashMap();

 	/**
 	 * <p>Default constructor<p>
 	 * <p>Use {@link #suite()}</p>
 	 *
 	 * @see #suite()
 	 */
 	public TestCSSContentAssistComputers() {
 		super("Test CSS Content Assist Computers");
 	}

 	/**
 	 * <p>Constructor that takes a test name.</p>
 	 * <p>Use {@link #suite()}</p>
 	 *
 	 * @param name The name this test run should have.
 	 *
 	 * @see #suite()
 	 */
 	public TestCSSContentAssistComputers(String name) {
 		super(name);
 	}

 	/**
 	 * <p>Use this method to add these tests to a larger test suite so set up
 	 * and tear down can be performed</p>
 	 *
 	 * @return a {@link TestSetup} that will run all of the tests in this class
 	 * with set up and tear down.
 	 */
 	public static Test suite() {
 		TestSuite ts = new TestSuite(TestCSSContentAssistComputers.class, "Test CSS Content Assist Computers");
 		return new TestCSSContentAssistComputersSetup(ts);
 	}

 	public void testSelectorProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {101, 0, 101, 101};
 		runProposalTest("test1.css", 2, 0, expectedProposalCounts);
 	}

 	public void testDeclarationPropertyProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {122, 0, 122, 122};
 		runProposalTest("test1.css", 5, 0, expectedProposalCounts);
 	}

 	public void testDeclarationValueProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {11, 0, 11, 11};
 		runProposalTest("test1.css", 9, 16, expectedProposalCounts);
 	}

 	public void testEmptyDoc() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {103, 1, 102, 103};
 		runProposalTest("test2.css", 0, 0, expectedProposalCounts);
 	}

 	public void testFinishSelectorProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {20, 0, 20, 20};
 		runProposalTest("test3.css", 2, 1, expectedProposalCounts);
 	}

 	public void testFinishDeclarationProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {4, 0, 4, 4};
 		runProposalTest("test4.css", 3, 14, expectedProposalCounts);
 	}

 	public void testFinishDeclarationValueProposals() throws Exception {
 		// default page, templates page, standard page, default page again
 		int[] expectedProposalCounts = new int[] {4, 0, 4, 4};
 		runProposalTest("test4.css", 7, 23, expectedProposalCounts);
 	}

 	public void testAdditionalProposalInfo() throws Exception {
 		IFile file = getFile("test4.css");
 		StructuredTextEditor editor = getEditor(file);
 		StructuredTextViewer viewer = editor.getTextViewer();
 		int offset = viewer.getDocument().getLineLength(7) + 23;
 		ICompletionProposal[][] pages = getProposals(viewer, offset, 4);

 		assertTrue("Not enough pages", pages.length > 0);
 		ICompletionProposal[] proposals = pages[0];
 		for (int i = 0; i < proposals.length; i++) {
 			if (proposals[i] instanceof ICompletionProposalExtension5) {
 				Object obj = ((ICompletionProposalExtension5) proposals[i]).getAdditionalProposalInfo(null);
 				assertTrue("Additional info must be of type ProposalInfo", obj instanceof ProposalInfo);
 				ProposalInfo info = (ProposalInfo) obj;
 				assertNotNull("CSSMMNode for Proposal Info should not be null", info);
 			}
 		}
 	}
 	/**
 	 * <p>Run a proposal test by opening the given file and invoking content assist for
 	 * each expected proposal count at the given line number and line character
 	 * offset and then compare the number of proposals for each invocation (pages) to the
 	 * expected number of proposals.</p>
 	 *
 	 * @param fileName
 	 * @param lineNum
 	 * @param lineRelativeCharOffset
 	 * @param expectedProposalCounts
 	 * @throws Exception
 	 */
 	private static void runProposalTest(String fileName,
 			int lineNum, int lineRelativeCharOffset,
 			int[] expectedProposalCounts) throws Exception{

 		IFile file = getFile(fileName);
 		StructuredTextEditor editor  = getEditor(file);
 		StructuredTextViewer viewer = editor.getTextViewer();
 		int offset = viewer.getDocument().getLineOffset(lineNum) + lineRelativeCharOffset;

 		ICompletionProposal[][] pages = getProposals(viewer, offset, expectedProposalCounts.length);

 		verifyProposalCounts(pages, expectedProposalCounts);
 	}

 	/**
 	 * <p>Invoke content assist on the given viewer at the given offset, for the given number of pages
 	 * and return the results of each page</p>
 	 *
 	 * @param viewer
 	 * @param offset
 	 * @param pageCount
 	 * @return
 	 * @throws Exception
 	 */
 	private static ICompletionProposal[][] getProposals(StructuredTextViewer viewer, int offset, int pageCount) throws Exception {
 		//setup the viewer
 		StructuredTextViewerConfigurationCSS configuration = new StructuredTextViewerConfigurationCSS();
 		ContentAssistant contentAssistant = (ContentAssistant)configuration.getContentAssistant(viewer);
 		viewer.configure(configuration);
 		viewer.setSelectedRange(offset, 0);

 		//get the processor
 		String partitionTypeID = viewer.getDocument().getPartition(offset).getType();
 		IContentAssistProcessor processor = contentAssistant.getContentAssistProcessor(partitionTypeID);

 		//fire content assist session about to start
 		Method privateFireSessionBeginEventMethod = ContentAssistant.class.
 		        getDeclaredMethod("fireSessionBeginEvent", new Class[] {boolean.class});
 		privateFireSessionBeginEventMethod.setAccessible(true);
 		privateFireSessionBeginEventMethod.invoke(contentAssistant, new Object[] {Boolean.TRUE});

 		//get content assist suggestions
 		ICompletionProposal[][] pages = new ICompletionProposal[pageCount][];
 		for(int p = 0; p < pageCount; ++p) {
 			pages[p] = processor.computeCompletionProposals(viewer, offset);
 		}

 		//fire content assist session ending
 		Method privateFireSessionEndEventMethod = ContentAssistant.class.
         getDeclaredMethod("fireSessionEndEvent", null);
 		privateFireSessionEndEventMethod.setAccessible(true);
 		privateFireSessionEndEventMethod.invoke(contentAssistant, null);

 		return pages;
 	}

 	/**
 	 * <p>Compare the expected number of proposals per page to the actual number of proposals
 	 * per page</p>
 	 *
 	 * @param pages
 	 * @param expectedProposalCounts
 	 */
 	private static void verifyProposalCounts(ICompletionProposal[][] pages, int[] expectedProposalCounts) {
 		StringBuffer error = new StringBuffer();
 		for(int page = 0; page < expectedProposalCounts.length; ++page) {
 			if(expectedProposalCounts[page] > pages[page].length) {
 				error.append("\nProposal page " + page + " did not have the expected number of proposals: was " +
 						pages[page].length + " expected " + expectedProposalCounts[page]);
 			}
 		}

 		//if errors report them
 		if(error.length() > 0) {
 			Assert.fail(error.toString());
 		}
 	}

 	/**
 	 * <p>Given a file name in <code>fProject</code> attempts to get an <code>IFile</code>
 	 * for it, if the file doesn't exist the test fails.</p>
 	 *
 	 * @param name the name of the file to get
 	 * @return the <code>IFile</code> associated with the given <code>name</code>
 	 */
 	private static IFile getFile(String name) {
 		IFile file = fProject.getFile(name);
 		assertTrue("Test file " + file + " can not be found", file.exists());

 		return file;
 	}

 	/**
 	 * <p>Given a <code>file</code> get an editor for it. If an editor has already
 	 * been retrieved for the given <code>file</code> then return the same already
 	 * open editor.</p>
 	 *
 	 * <p>When opening the editor it will also standardized the line
 	 * endings to <code>\n</code></p>
 	 *
 	 * @param file open and return an editor for this
 	 * @return <code>StructuredTextEditor</code> opened from the given <code>file</code>
 	 */
 	private static StructuredTextEditor getEditor(IFile file)  {
 		StructuredTextEditor editor = (StructuredTextEditor)fFileToEditorMap.get(file);

 		if(editor == null) {
 			try {
 				IWorkbenchWindow workbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
 				IWorkbenchPage page = workbenchWindow.getActivePage();
 				IEditorPart editorPart = IDE.openEditor(page, file, "org.eclipse.wst.css.core.csssource.source", true);
 				if(editorPart instanceof StructuredTextEditor) {
 					editor = ((StructuredTextEditor)editorPart);
 				} else {
 					fail("Unable to open structured text editor: " + editorPart.getClass().getName());
 				}

 				if(editor != null) {
 					standardizeLineEndings(editor);
 					fFileToEditorMap.put(file, editor);
 				} else {
 					fail("Could not open editor for " + file);
 				}
 			} catch (Exception e) {
 				fail("Could not open editor for " + file + " exception: " + e.getMessage());
 			}
 		}

 		return editor;
 	}

 	/**
 	 * <p>Line endings can be an issue when running tests on different OSs.
 	 * This function standardizes the line endings to use <code>\n</code></p>
 	 *
 	 * <p>It will get the text from the given editor, change the line endings,
 	 * and then save the editor</p>
 	 *
 	 * @param editor standardize the line endings of the text presented in this
 	 * editor.
 	 */
 	private static void standardizeLineEndings(StructuredTextEditor editor) {
 		IDocument doc = editor.getTextViewer().getDocument();
 		String contents = doc.get();
 		contents = StringUtils.replace(contents, "\r\n", "\n");
 		contents = StringUtils.replace(contents, "\r", "\n");
 		doc.set(contents);
 	}

 	/**
 	 * <p>This inner class is used to do set up and tear down before and
 	 * after (respectively) all tests in the inclosing class have run.</p>
 	 */
 	private static class TestCSSContentAssistComputersSetup extends TestSetup {
 		private static final String WTP_AUTOTEST_NONINTERACTIVE = "wtp.autotest.noninteractive";
 		private static String previousWTPAutoTestNonInteractivePropValue = null;

 		/**
 		 * Default constructor
 		 *
 		 * @param test do setup for the given test
 		 */
 		public TestCSSContentAssistComputersSetup(Test test) {
 			super(test);
 		}

 		/**
 		 * <p>This is run once before all of the tests</p>
 		 *
 		 * @see junit.extensions.TestSetup#setUp()
 		 */
 		public void setUp() throws Exception {
 			//setup properties
 			String noninteractive = System.getProperty(WTP_AUTOTEST_NONINTERACTIVE);
 			if (noninteractive != null) {
 				previousWTPAutoTestNonInteractivePropValue = noninteractive;
 			} else {
 				previousWTPAutoTestNonInteractivePropValue = "false";
 			}
 			System.setProperty(WTP_AUTOTEST_NONINTERACTIVE, "true");

 			//setup project
 			fProject = ProjectUtil.createProject(PROJECT_NAME, null, new String[] {JAVA_SCRIPT_NATURE_ID});
 			ProjectUtil.copyBundleEntriesIntoWorkspace(PROJECT_FILES, PROJECT_NAME);
 		}

 		/**
 		 * <p>This is run once after all of the tests have been run</p>
 		 *
 		 * @see junit.extensions.TestSetup#tearDown()
 		 */
 		public void tearDown() throws Exception {
 			//close out the editors
 			Iterator iter = fFileToEditorMap.values().iterator();
 			while(iter.hasNext()) {
 				StructuredTextEditor editor = (StructuredTextEditor)iter.next();
 				editor.doSave(null);
 				editor.close(false);
 			}

 			//remove project
 			fProject.delete(true, new NullProgressMonitor());

 			//restore properties
 			if (previousWTPAutoTestNonInteractivePropValue != null) {
 				System.setProperty(WTP_AUTOTEST_NONINTERACTIVE, previousWTPAutoTestNonInteractivePropValue);
 			}
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2010, 2012 IBM Corporation and others.
	* 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:
	* IBM Corporation - initial API and implementation
	*
	*******************************************************************************/
	package org.eclipse.wst.css.ui.tests.contentassist;

	import java.lang.reflect.Method;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.Map;

	import junit.extensions.TestSetup;
	import junit.framework.Assert;
	import junit.framework.Test;
	import junit.framework.TestCase;
	import junit.framework.TestSuite;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.contentassist.ContentAssistant;
	import org.eclipse.jface.text.contentassist.ICompletionProposal;
	import org.eclipse.jface.text.contentassist.ICompletionProposalExtension5;
	import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
	import org.eclipse.ui.IEditorPart;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.IWorkbenchWindow;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.wst.css.ui.StructuredTextViewerConfigurationCSS;
	import org.eclipse.wst.css.ui.tests.ProjectUtil;
	import org.eclipse.wst.sse.core.utils.StringUtils;
	import org.eclipse.wst.sse.ui.StructuredTextEditor;
	import org.eclipse.wst.sse.ui.internal.StructuredTextViewer;

	public class TestCSSContentAssistComputers extends TestCase {
	/** The name of the project that all of these tests will use */
	private static final String PROJECT_NAME = "TestCSSContentAssistComputers";

	/** so we don't have to depend on JSDT */
	private static final String JAVA_SCRIPT_NATURE_ID = "org.eclipse.wst.jsdt.core.jsNature";

	/** The location of the testing files */
	private static final String PROJECT_FILES = "/testresources/contentassist";

	/** The project that all of the tests use */
	private static IProject fProject;

	/**
	* Used to keep track of the already open editors so that the tests don't go through
	* the trouble of opening the same editors over and over again
	*/
	private static Map fFileToEditorMap = new HashMap();

	/**
	* <p>Default constructor<p>
	* <p>Use {@link #suite()}</p>
	*
	* @see #suite()
	*/
	public TestCSSContentAssistComputers() {
	super("Test CSS Content Assist Computers");
	}

	/**
	* <p>Constructor that takes a test name.</p>
	* <p>Use {@link #suite()}</p>
	*
	* @param name The name this test run should have.
	*
	* @see #suite()
	*/
	public TestCSSContentAssistComputers(String name) {
	super(name);
	}

	/**
	* <p>Use this method to add these tests to a larger test suite so set up
	* and tear down can be performed</p>
	*
	* @return a {@link TestSetup} that will run all of the tests in this class
	* with set up and tear down.
	*/
	public static Test suite() {
	TestSuite ts = new TestSuite(TestCSSContentAssistComputers.class, "Test CSS Content Assist Computers");
	return new TestCSSContentAssistComputersSetup(ts);
	}

	public void testSelectorProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {101, 0, 101, 101};
	runProposalTest("test1.css", 2, 0, expectedProposalCounts);
	}

	public void testDeclarationPropertyProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {122, 0, 122, 122};
	runProposalTest("test1.css", 5, 0, expectedProposalCounts);
	}

	public void testDeclarationValueProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {11, 0, 11, 11};
	runProposalTest("test1.css", 9, 16, expectedProposalCounts);
	}

	public void testEmptyDoc() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {103, 1, 102, 103};
	runProposalTest("test2.css", 0, 0, expectedProposalCounts);
	}

	public void testFinishSelectorProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {20, 0, 20, 20};
	runProposalTest("test3.css", 2, 1, expectedProposalCounts);
	}

	public void testFinishDeclarationProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {4, 0, 4, 4};
	runProposalTest("test4.css", 3, 14, expectedProposalCounts);
	}

	public void testFinishDeclarationValueProposals() throws Exception {
	// default page, templates page, standard page, default page again
	int[] expectedProposalCounts = new int[] {4, 0, 4, 4};
	runProposalTest("test4.css", 7, 23, expectedProposalCounts);
	}

	public void testAdditionalProposalInfo() throws Exception {
	IFile file = getFile("test4.css");
	StructuredTextEditor editor = getEditor(file);
	StructuredTextViewer viewer = editor.getTextViewer();
	int offset = viewer.getDocument().getLineLength(7) + 23;
	ICompletionProposal[][] pages = getProposals(viewer, offset, 4);

	assertTrue("Not enough pages", pages.length > 0);
	ICompletionProposal[] proposals = pages[0];
	for (int i = 0; i < proposals.length; i++) {
	if (proposals[i] instanceof ICompletionProposalExtension5) {
	Object obj = ((ICompletionProposalExtension5) proposals[i]).getAdditionalProposalInfo(null);
	assertTrue("Additional info must be of type ProposalInfo", obj instanceof ProposalInfo);
	ProposalInfo info = (ProposalInfo) obj;
	assertNotNull("CSSMMNode for Proposal Info should not be null", info);
	}
	}
	}
	/**
	* <p>Run a proposal test by opening the given file and invoking content assist for
	* each expected proposal count at the given line number and line character
	* offset and then compare the number of proposals for each invocation (pages) to the
	* expected number of proposals.</p>
	*
	* @param fileName
	* @param lineNum
	* @param lineRelativeCharOffset
	* @param expectedProposalCounts
	* @throws Exception
	*/
	private static void runProposalTest(String fileName,
	int lineNum, int lineRelativeCharOffset,
	int[] expectedProposalCounts) throws Exception{

	IFile file = getFile(fileName);
	StructuredTextEditor editor = getEditor(file);
	StructuredTextViewer viewer = editor.getTextViewer();
	int offset = viewer.getDocument().getLineOffset(lineNum) + lineRelativeCharOffset;

	ICompletionProposal[][] pages = getProposals(viewer, offset, expectedProposalCounts.length);

	verifyProposalCounts(pages, expectedProposalCounts);
	}

	/**
	* <p>Invoke content assist on the given viewer at the given offset, for the given number of pages
	* and return the results of each page</p>
	*
	* @param viewer
	* @param offset
	* @param pageCount
	* @return
	* @throws Exception
	*/
	private static ICompletionProposal[][] getProposals(StructuredTextViewer viewer, int offset, int pageCount) throws Exception {
	//setup the viewer
	StructuredTextViewerConfigurationCSS configuration = new StructuredTextViewerConfigurationCSS();
	ContentAssistant contentAssistant = (ContentAssistant)configuration.getContentAssistant(viewer);
	viewer.configure(configuration);
	viewer.setSelectedRange(offset, 0);

	//get the processor
	String partitionTypeID = viewer.getDocument().getPartition(offset).getType();
	IContentAssistProcessor processor = contentAssistant.getContentAssistProcessor(partitionTypeID);

	//fire content assist session about to start
	Method privateFireSessionBeginEventMethod = ContentAssistant.class.
	getDeclaredMethod("fireSessionBeginEvent", new Class[] {boolean.class});
	privateFireSessionBeginEventMethod.setAccessible(true);
	privateFireSessionBeginEventMethod.invoke(contentAssistant, new Object[] {Boolean.TRUE});

	//get content assist suggestions
	ICompletionProposal[][] pages = new ICompletionProposal[pageCount][];
	for(int p = 0; p < pageCount; ++p) {
	pages[p] = processor.computeCompletionProposals(viewer, offset);
	}

	//fire content assist session ending
	Method privateFireSessionEndEventMethod = ContentAssistant.class.
	getDeclaredMethod("fireSessionEndEvent", null);
	privateFireSessionEndEventMethod.setAccessible(true);
	privateFireSessionEndEventMethod.invoke(contentAssistant, null);

	return pages;
	}

	/**
	* <p>Compare the expected number of proposals per page to the actual number of proposals
	* per page</p>
	*
	* @param pages
	* @param expectedProposalCounts
	*/
	private static void verifyProposalCounts(ICompletionProposal[][] pages, int[] expectedProposalCounts) {
	StringBuffer error = new StringBuffer();
	for(int page = 0; page < expectedProposalCounts.length; ++page) {
	if(expectedProposalCounts[page] > pages[page].length) {
	error.append("\nProposal page " + page + " did not have the expected number of proposals: was " +
	pages[page].length + " expected " + expectedProposalCounts[page]);
	}
	}

	//if errors report them
	if(error.length() > 0) {
	Assert.fail(error.toString());
	}
	}

	/**
	* <p>Given a file name in <code>fProject</code> attempts to get an <code>IFile</code>
	* for it, if the file doesn't exist the test fails.</p>
	*
	* @param name the name of the file to get
	* @return the <code>IFile</code> associated with the given <code>name</code>
	*/
	private static IFile getFile(String name) {
	IFile file = fProject.getFile(name);
	assertTrue("Test file " + file + " can not be found", file.exists());

	return file;
	}

	/**
	* <p>Given a <code>file</code> get an editor for it. If an editor has already
	* been retrieved for the given <code>file</code> then return the same already
	* open editor.</p>
	*
	* <p>When opening the editor it will also standardized the line
	* endings to <code>\n</code></p>
	*
	* @param file open and return an editor for this
	* @return <code>StructuredTextEditor</code> opened from the given <code>file</code>
	*/
	private static StructuredTextEditor getEditor(IFile file) {
	StructuredTextEditor editor = (StructuredTextEditor)fFileToEditorMap.get(file);

	if(editor == null) {
	try {
	IWorkbenchWindow workbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
	IWorkbenchPage page = workbenchWindow.getActivePage();
	IEditorPart editorPart = IDE.openEditor(page, file, "org.eclipse.wst.css.core.csssource.source", true);
	if(editorPart instanceof StructuredTextEditor) {
	editor = ((StructuredTextEditor)editorPart);
	} else {
	fail("Unable to open structured text editor: " + editorPart.getClass().getName());
	}

	if(editor != null) {
	standardizeLineEndings(editor);
	fFileToEditorMap.put(file, editor);
	} else {
	fail("Could not open editor for " + file);
	}
	} catch (Exception e) {
	fail("Could not open editor for " + file + " exception: " + e.getMessage());
	}
	}

	return editor;
	}

	/**
	* <p>Line endings can be an issue when running tests on different OSs.
	* This function standardizes the line endings to use <code>\n</code></p>
	*
	* <p>It will get the text from the given editor, change the line endings,
	* and then save the editor</p>
	*
	* @param editor standardize the line endings of the text presented in this
	* editor.
	*/
	private static void standardizeLineEndings(StructuredTextEditor editor) {
	IDocument doc = editor.getTextViewer().getDocument();
	String contents = doc.get();
	contents = StringUtils.replace(contents, "\r\n", "\n");
	contents = StringUtils.replace(contents, "\r", "\n");
	doc.set(contents);
	}

	/**
	* <p>This inner class is used to do set up and tear down before and
	* after (respectively) all tests in the inclosing class have run.</p>
	*/
	private static class TestCSSContentAssistComputersSetup extends TestSetup {
	private static final String WTP_AUTOTEST_NONINTERACTIVE = "wtp.autotest.noninteractive";
	private static String previousWTPAutoTestNonInteractivePropValue = null;

	/**
	* Default constructor
	*
	* @param test do setup for the given test
	*/
	public TestCSSContentAssistComputersSetup(Test test) {
	super(test);
	}

	/**
	* <p>This is run once before all of the tests</p>
	*
	* @see junit.extensions.TestSetup#setUp()
	*/
	public void setUp() throws Exception {
	//setup properties
	String noninteractive = System.getProperty(WTP_AUTOTEST_NONINTERACTIVE);
	if (noninteractive != null) {
	previousWTPAutoTestNonInteractivePropValue = noninteractive;
	} else {
	previousWTPAutoTestNonInteractivePropValue = "false";
	}
	System.setProperty(WTP_AUTOTEST_NONINTERACTIVE, "true");

	//setup project
	fProject = ProjectUtil.createProject(PROJECT_NAME, null, new String[] {JAVA_SCRIPT_NATURE_ID});
	ProjectUtil.copyBundleEntriesIntoWorkspace(PROJECT_FILES, PROJECT_NAME);
	}

	/**
	* <p>This is run once after all of the tests have been run</p>
	*
	* @see junit.extensions.TestSetup#tearDown()
	*/
	public void tearDown() throws Exception {
	//close out the editors
	Iterator iter = fFileToEditorMap.values().iterator();
	while(iter.hasNext()) {
	StructuredTextEditor editor = (StructuredTextEditor)iter.next();
	editor.doSave(null);
	editor.close(false);
	}

	//remove project
	fProject.delete(true, new NullProgressMonitor());

	//restore properties
	if (previousWTPAutoTestNonInteractivePropValue != null) {
	System.setProperty(WTP_AUTOTEST_NONINTERACTIVE, previousWTPAutoTestNonInteractivePropValue);
	}
	}
	}
	}