/*******************************************************************************
 * Copyright (c) 2004, 2016 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 - Initial API and implementation
 *     Markus Schorn (Wind River Systems)
 *     Nathan Ridge
 *******************************************************************************/
package org.eclipse.cdt.ui.tests.text.selection;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.InputStream;

import org.eclipse.cdt.core.dom.IPDOMManager;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.core.testplugin.CProjectHelper;
import org.eclipse.cdt.core.testplugin.FileManager;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.ui.search.actions.OpenDeclarationsAction;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;

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

/**
 * It is required to test the selection performance independent of the indexer to make sure that the DOM is functioning properly.
 *
 * Indexer bugs can drastically influence the correctness of these tests so the indexer has to be off when performing them.
 *
 * @author dsteffle
 */
public class CSelectionTestsNoIndexer extends BaseSelectionTests {

	private static final String INDEX_FILE_ID = "2324852323"; //$NON-NLS-1$
	static NullProgressMonitor monitor;
	static IWorkspace workspace;
	static IProject project;
	static ICProject cPrj;
	static FileManager fileManager;
	static boolean disabledHelpContributions = false;

	void initProject() {
		if (project != null) {
			return;
		}
		//(CCorePlugin.getDefault().getCoreModel().getIndexManager()).reset();
		monitor = new NullProgressMonitor();

		workspace = ResourcesPlugin.getWorkspace();

		try {
			cPrj = CProjectHelper.createCProject("CSelectionTestsNoIndexerProject", "bin", IPDOMManager.ID_NO_INDEXER); //$NON-NLS-1$ //$NON-NLS-2$
			project = cPrj.getProject();
		} catch (CoreException e) {
			/*boo*/
		}
		if (project == null)
			fail("Unable to create project"); //$NON-NLS-1$

		//Create file manager
		fileManager = new FileManager();
	}

	public CSelectionTestsNoIndexer() {
		super();
	}

	/**
	 * @param name
	 */
	public CSelectionTestsNoIndexer(String name) {
		super(name);
	}

	public static Test suite() {
		TestSuite suite = new TestSuite(CSelectionTestsNoIndexer.class);
		suite.addTest(new CSelectionTestsNoIndexer("cleanupProject")); //$NON-NLS-1$
		return suite;
	}

	@Override
	protected void setUp() throws Exception {
		super.setUp();
		OpenDeclarationsAction.sDisallowAmbiguousInput = true;
		initProject();
	}

	public void cleanupProject() throws Exception {
		try {
			closeAllEditors();
			CProjectHelper.delete(cPrj);
			project = null;
		} finally {
			project = null;
		}
	}

	@Override
	protected void tearDown() throws Exception {
		if (project == null || !project.exists())
			return;

		closeAllEditors();

		IResource[] members = project.members();
		for (IResource member : members) {
			if (member.getName().equals(".project") || member.getName().equals(".cproject")) //$NON-NLS-1$ //$NON-NLS-2$
				continue;
			if (member.getName().equals(".settings"))
				continue;
			try {
				member.delete(true, monitor);
			} catch (Throwable e) {
				/*boo*/
			}
		}
	}

	protected IFile importFile(String fileName, String contents) throws Exception {
		//Obtain file handle
		IFile file = project.getProject().getFile(fileName);

		InputStream stream = new ByteArrayInputStream(contents.getBytes());
		//Create file input stream
		if (file.exists())
			file.setContents(stream, false, false, monitor);
		else
			file.create(stream, false, monitor);

		fileManager.addFile(file);

		return file;
	}

	protected IFile importFileWithLink(String fileName, String contents) throws Exception {
		//Obtain file handle
		IFile file = project.getProject().getFile(fileName);

		IPath location = new Path(project.getLocation().removeLastSegments(1).toOSString() + File.separator + fileName);

		File linkFile = new File(location.toOSString());
		if (!linkFile.exists()) {
			linkFile.createNewFile();
		}

		file.createLink(location, IResource.ALLOW_MISSING_LOCAL, null);

		InputStream stream = new ByteArrayInputStream(contents.getBytes());
		//Create file input stream
		if (file.exists())
			file.setContents(stream, false, false, monitor);
		else
			file.create(stream, false, monitor);

		fileManager.addFile(file);

		return file;
	}

	protected IFile importFileInsideLinkedFolder(String fileName, String contents, String folderName) throws Exception {
		IFolder linkedFolder = project.getFolder(folderName);
		IPath folderLocation = new Path(
				project.getLocation().toOSString() + File.separator + folderName + "_this_is_linked"); //$NON-NLS-1$
		IFolder actualFolder = project.getFolder(folderName + "_this_is_linked"); //$NON-NLS-1$
		if (!actualFolder.exists())
			actualFolder.create(true, true, monitor);

		linkedFolder.createLink(folderLocation, IResource.NONE, monitor);

		actualFolder.delete(true, false, monitor);

		IFile file = linkedFolder.getFile(fileName);

		InputStream stream = new ByteArrayInputStream(contents.getBytes());
		//Create file input stream
		if (file.exists())
			file.setContents(stream, false, false, monitor);
		else
			file.create(stream, false, monitor);

		fileManager.addFile(file);

		return file;
	}

	protected IFile importFileWithLink(String fileName, String contents, IFolder folder) throws Exception {
		if (!folder.exists())
			folder.create(true, true, null);

		//Obtain file handle
		IFile file = project.getProject().getFile(fileName);

		IPath location = new Path(folder.getLocation().toOSString() + File.separator + fileName);

		File linkFile = new File(location.toOSString());
		if (!linkFile.exists()) {
			linkFile.createNewFile();
		}

		file.createLink(location, IResource.ALLOW_MISSING_LOCAL, null);

		InputStream stream = new ByteArrayInputStream(contents.getBytes());
		//Create file input stream
		if (file.exists())
			file.setContents(stream, false, false, monitor);
		else
			file.create(stream, false, monitor);

		fileManager.addFile(file);

		return file;
	}

	protected IFolder importFolder(String folderName) throws Exception {
		IFolder folder = project.getProject().getFolder(folderName);

		//Create file input stream
		if (!folder.exists())
			folder.create(false, false, monitor);

		return folder;
	}

	public void testBasicDefinition() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("extern int MyInt;       // def is in another file  \n"); //$NON-NLS-1$
		buffer.append("extern const int MyConst;   // def is in another file    \n"); //$NON-NLS-1$
		buffer.append("void MyFunc(int);       // often used in header files\n"); //$NON-NLS-1$
		buffer.append("struct MyStruct;        // often used in header files\n"); //$NON-NLS-1$
		buffer.append("typedef int NewInt;     // a normal typedef statement\n"); //$NON-NLS-1$
		buffer.append("                                                     \n"); //$NON-NLS-1$
		buffer.append("int MyInt;\n"); //$NON-NLS-1$
		buffer.append("extern const int MyConst = 42;\n"); //$NON-NLS-1$
		buffer.append("void MyFunc(int a) { cout << a << endl; }\n"); //$NON-NLS-1$
		buffer.append("struct MyStruct { int Member1; int Member2; };\n"); //$NON-NLS-1$

		String code = buffer.toString();
		IFile file = importFile("testBasicDefinition.c", code); //$NON-NLS-1$

		int offset = code.indexOf("MyInt") + 2; //$NON-NLS-1$
		int defOffset = code.indexOf("MyInt", offset) + 2; //$NON-NLS-1$
		IASTNode def = testF3(file, offset);
		IASTNode decl = testF3(file, defOffset);
		assertTrue(def instanceof IASTName);
		assertTrue(decl instanceof IASTName);
		assertEquals("MyInt", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(11, ((ASTNode) decl).getOffset());
		assertEquals(5, ((ASTNode) decl).getLength());
		assertEquals("MyInt", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(330, ((ASTNode) def).getOffset());
		assertEquals(5, ((ASTNode) def).getLength());

		offset = code.indexOf("MyConst") + 2;
		defOffset = code.indexOf("MyConst", offset) + 2;
		def = testF3(file, offset);
		decl = testF3(file, defOffset);
		assertTrue(def instanceof IASTName);
		assertTrue(decl instanceof IASTName);
		assertEquals("MyConst", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(69, ((ASTNode) decl).getOffset());
		assertEquals(7, ((ASTNode) decl).getLength());
		assertEquals("MyConst", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(354, ((ASTNode) def).getOffset());
		assertEquals(7, ((ASTNode) def).getLength());

		offset = code.indexOf("MyFunc") + 2;
		defOffset = code.indexOf("MyFunc", offset) + 2;
		def = testF3(file, offset);
		decl = testF3(file, defOffset);
		assertTrue(def instanceof IASTName);
		assertTrue(decl instanceof IASTName);
		assertEquals("MyFunc", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(115, ((ASTNode) decl).getOffset());
		assertEquals(6, ((ASTNode) decl).getLength());
		assertEquals("MyFunc", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(373, ((ASTNode) def).getOffset());
		assertEquals(6, ((ASTNode) def).getLength());

		offset = code.indexOf("MyStruct") + 2;
		defOffset = code.indexOf("MyStruct", offset) + 2;
		def = testF3(file, offset);
		decl = testF3(file, defOffset);
		assertTrue(def instanceof IASTName);
		assertTrue(decl instanceof IASTName);
		assertEquals("MyStruct", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(417, ((ASTNode) decl).getOffset());
		assertEquals(8, ((ASTNode) decl).getLength());
		assertEquals("MyStruct", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(417, ((ASTNode) def).getOffset());
		assertEquals(8, ((ASTNode) def).getLength());
	}

	// taken from C++ spec 3.1-3:
	/*
	// all but one of the following are definitions:
	int a; // defines a
	extern const int c = 1; // defines c
	int f(int x) { return x+a; } // defines f and defines x
	struct S { int a; int b; }; // defines S, S::a, and S::b
	struct X { // defines X
		int x; // defines nonstatic data member x
	};
	enum { up, down }; // defines up and down
	struct X anX; // defines anX
	// whereas these are just declarations:
	extern int a; // declares a
	extern const int c; // declares c
	int f(int); // declares f
	struct S; // declares S
	typedef int Int; // declares Int
	extern struct X anotherX; // declares anotherX
	*/
	public void testCPPSpecDeclsDefs() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("int a; // defines a\n"); //$NON-NLS-1$
		buffer.append("extern const int c = 1; // defines c\n"); //$NON-NLS-1$
		buffer.append("int f(int x) { return x+a; } // defines f and defines x\n"); //$NON-NLS-1$
		buffer.append("struct S { int a; int b; }; // defines S, S::a, and S::b\n"); //$NON-NLS-1$
		buffer.append("struct X { // defines X\n"); //$NON-NLS-1$
		buffer.append("int x; // defines nonstatic data member x\n"); //$NON-NLS-1$
		buffer.append("                                             \n"); //$NON-NLS-1$
		buffer.append("                                           \n"); //$NON-NLS-1$
		buffer.append("};\n"); //$NON-NLS-1$
		buffer.append("                               "); //$NON-NLS-1$
		buffer.append("enum { up, down }; // defines up and down\n"); //$NON-NLS-1$
		buffer.append("                                          \n"); //$NON-NLS-1$
		buffer.append("                          \n"); //$NON-NLS-1$
		buffer.append("struct X anX; // defines anX\n"); //$NON-NLS-1$
		buffer.append("extern int a; // declares a\n"); //$NON-NLS-1$
		buffer.append("extern const int c; // declares c\n"); //$NON-NLS-1$
		buffer.append("int f(int y); // declar f\n"); //$NON-NLS-1$
		buffer.append("struct S; // declares S\n"); //$NON-NLS-1$
		buffer.append("typedef int Int; // declares Int\n"); //$NON-NLS-1$
		buffer.append("extern struct X anotherX; // declares anotherX\n"); //$NON-NLS-1$

		String code = buffer.toString();
		IFile file = importFile("testCPPSpecDeclsDefs.c", code); //$NON-NLS-1$

		int offset = code.indexOf("a; // defines a"); //$NON-NLS-1$
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("a", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(512, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("c = 1; // defines c"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("c", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(546, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("f(int x) { return x+a; } // defines f and defines x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("f", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(567, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("x) { return x+a; } // defines f and defines x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(67, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("x+a; } // defines f and defines x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(67, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("x+a; } // defines f and defines x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(67, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("a; } // defines f and defines x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("a", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(4, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("S { int a; int b; }; // defines S, S::a, and S::b"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("S", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(120, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("a; int b; }; // defines S, S::a, and S::b"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("a", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(128, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("b; }; // defines S, S::a, and S::b"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("b", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(135, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("X { // defines X"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("X", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(177, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("x; // defines nonstatic data member x"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(198, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());

		offset = code.indexOf("up, down }; // defines up and down"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("up", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(367, ((ASTNode) decl).getOffset());
		assertEquals(2, ((ASTNode) decl).getLength());

		offset = code.indexOf("down }; // defines up and down"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("down", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(371, ((ASTNode) decl).getOffset());
		assertEquals(4, ((ASTNode) decl).getLength());

		IASTNode def;
		offset = code.indexOf("X anX; // defines anX"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("X", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(177, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("anX; // defines anX"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("anX", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(481, ((ASTNode) decl).getOffset());
		assertEquals(3, ((ASTNode) decl).getLength());

		offset = code.indexOf("a; // declares a"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("a", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(4, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("c; // declares c"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("c", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(37, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("f(int y); // declar f"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("f", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(61, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("S; // declares S"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("S", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(120, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("Int; // declares Int"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("Int", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(625, ((ASTNode) decl).getOffset());
		assertEquals(3, ((ASTNode) decl).getLength());

		offset = code.indexOf("X anotherX; // declares anotherX"); //$NON-NLS-1$
		def = testF3(file, offset);
		assertTrue(def instanceof IASTName);
		assertEquals("X", ((IASTName) def).toString()); //$NON-NLS-1$
		assertEquals(177, ((ASTNode) def).getOffset());
		assertEquals(1, ((ASTNode) def).getLength());

		offset = code.indexOf("anotherX; // declares anotherX"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("anotherX", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(662, ((ASTNode) decl).getOffset());
		assertEquals(8, ((ASTNode) decl).getLength());
	}

	public void testNoDefinitions() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("extern int a1; // declares a\n"); //$NON-NLS-1$
		buffer.append("extern const int c1; // declares c\n"); //$NON-NLS-1$
		buffer.append("int f1(int); // declares f\n"); //$NON-NLS-1$
		buffer.append("struct S1; // declares S\n"); //$NON-NLS-1$
		buffer.append("typedef int Int; // declares Int\n"); //$NON-NLS-1$

		String code = buffer.toString();
		IFile file = importFile("testNoDefinitions.c", code); //$NON-NLS-1$

		int offset = code.indexOf("a1; // declares a"); //$NON-NLS-1$
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("a1", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(11, ((ASTNode) decl).getOffset());
		assertEquals(2, ((ASTNode) decl).getLength());

		offset = code.indexOf("c1; // declares c"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("c1", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(46, ((ASTNode) decl).getOffset());
		assertEquals(2, ((ASTNode) decl).getLength());

		offset = code.indexOf("f1(int); // declares f"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("f1", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(68, ((ASTNode) decl).getOffset());
		assertEquals(2, ((ASTNode) decl).getLength());

		offset = code.indexOf("S1; // declares S"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("S1", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(98, ((ASTNode) decl).getOffset());
		assertEquals(2, ((ASTNode) decl).getLength());

		offset = code.indexOf("Int; // declares Int"); //$NON-NLS-1$
		decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("Int", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(128, ((ASTNode) decl).getOffset());
		assertEquals(3, ((ASTNode) decl).getLength());
	}

	public void testBug103697() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("int x;\n"); //$NON-NLS-1$
		buffer.append("int foo() {\n"); //$NON-NLS-1$
		buffer.append(" return x;\n"); //$NON-NLS-1$
		buffer.append("}\n"); //$NON-NLS-1$

		String code = buffer.toString();
		IFile file = importFileWithLink("testBug103697.cpp", code); //$NON-NLS-1$

		int offset = code.indexOf("return x;\n") + "return ".length(); //$NON-NLS-1$ //$NON-NLS-2$
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(4, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());
	}

	public void testBug76043() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("int x;\n"); //$NON-NLS-1$
		buffer.append("int foo() {\n"); //$NON-NLS-1$
		buffer.append(" return x;\n"); //$NON-NLS-1$
		buffer.append("}\n"); //$NON-NLS-1$
		String code = buffer.toString();

		IFile file = importFileInsideLinkedFolder("testBug76043.c", code, "folder"); //$NON-NLS-1$ //$NON-NLS-2$

		assertFalse(file.isLinked()); // I'm not sure why the IResource#isLinked() returns false if it's contained within a linked folder

		int offset = code.indexOf("return x;\n") + "return ".length(); //$NON-NLS-1$ //$NON-NLS-2$
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("x", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(4, ((ASTNode) decl).getOffset());
		assertEquals(1, ((ASTNode) decl).getLength());
	}

	public void testBug78354() throws Exception {
		StringBuilder buffer = new StringBuilder();
		buffer.append("typedef int TestTypeOne;\n"); //$NON-NLS-1$
		buffer.append("typedef int TestTypeTwo;\n"); //$NON-NLS-1$
		buffer.append("int main()\n"); //$NON-NLS-1$
		buffer.append("{\n"); //$NON-NLS-1$
		buffer.append("TestTypeOne myFirstLink = 5;\n"); //$NON-NLS-1$
		buffer.append("TestTypeTwo mySecondLink = 6;\n"); //$NON-NLS-1$
		buffer.append("return 0;\n"); //$NON-NLS-1$
		buffer.append("}\n"); //$NON-NLS-1$

		String code = buffer.toString();
		IFile file = importFileWithLink("testBug78354.cpp", code); //$NON-NLS-1$

		int offset = code.indexOf("TestTypeOne myFirstLink = 5;"); //$NON-NLS-1$
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		assertEquals("TestTypeOne", ((IASTName) decl).toString()); //$NON-NLS-1$
		assertEquals(12, ((ASTNode) decl).getOffset());
		assertEquals(11, ((ASTNode) decl).getLength());
	}

	// int myFunc(var)
	// int var;
	// {
	//     return var;
	// }
	//
	// int main(void)
	// {
	//     return myFunc(0);
	// }
	public void testKRstyleFunctions_Bug221635() throws Exception {
		String code = getContentsForTest(1)[0].toString();
		IFile file = importFile("source.c", code);
		int offset = code.indexOf("myFunc(0)");
		IASTNode decl = testF3(file, offset);
		assertTrue(decl instanceof IASTName);
		final IASTName name = (IASTName) decl;
		assertTrue(name.isDefinition());
		assertEquals("myFunc", name.toString());
	}
}
