org.eclipse.jdt.text.tests/src/org/eclipse/jdt/text/tests/MarkOccurrenceTest17.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011 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.jdt.text.tests;

 import java.util.Arrays;
 import java.util.Comparator;

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

 import org.eclipse.jdt.testplugin.JavaProjectHelper;

 import org.eclipse.jdt.core.ICompilationUnit;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IPackageFragmentRoot;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.dom.ASTParser;
 import org.eclipse.jdt.core.dom.CompilationUnit;

 import org.eclipse.jdt.ui.PreferenceConstants;
 import org.eclipse.jdt.ui.tests.core.Java17ProjectTestSetup;

 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.javaeditor.ASTProvider;
 import org.eclipse.jdt.internal.ui.search.ExceptionOccurrencesFinder;
 import org.eclipse.jdt.internal.ui.search.IOccurrencesFinder;
 import org.eclipse.jdt.internal.ui.search.IOccurrencesFinder.OccurrenceLocation;
 import org.eclipse.jdt.internal.ui.search.MethodExitsFinder;

 /**
  * Tests the Java Editor's occurrence marking feature.
  */
 public class MarkOccurrenceTest17 extends TestCase {
 	private static final Class THIS= MarkOccurrenceTest17.class;

 	public static Test suite() {
 		return new Java17ProjectTestSetup(new TestSuite(THIS));
 	}

 	public static Test setUpTest(Test test) {
 		return new Java17ProjectTestSetup(test);
 	}

 	private ASTParser fParser;

 	private IOccurrencesFinder fFinder;

 	private IJavaProject fJProject1;

 	private IPackageFragmentRoot fSourceFolder;

 	/*
 	 * @see junit.framework.TestCase#setUp()
 	 */
 	protected void setUp() throws Exception {
 		fParser= ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);

 		fJProject1= Java17ProjectTestSetup.getProject();
 		fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src");
 		JavaPlugin.getDefault().getPreferenceStore().setValue(PreferenceConstants.EDITOR_MARK_OCCURRENCES, true);
 		JavaPlugin.getDefault().getPreferenceStore().setValue(PreferenceConstants.EDITOR_MARK_IMPLEMENTORS, true);
 	}

 	/* (non-Javadoc)
 	 * @see junit.framework.TestCase#tearDown()
 	 */
 	protected void tearDown() throws Exception {
 		JavaProjectHelper.clear(fJProject1, Java17ProjectTestSetup.getDefaultClasspath());
 	}

 	private OccurrenceLocation[] getHighlights(StringBuffer source, int offset, int length) throws Exception {
 		CompilationUnit root= createCompilationUnit(source);
 		String errorString= fFinder.initialize(root, offset, length);
 		assertNull(errorString, errorString);
 		return fFinder.getOccurrences();
 	}

 	private CompilationUnit createCompilationUnit(StringBuffer source) throws JavaModelException {
 		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
 		ICompilationUnit cu= pack1.createCompilationUnit("E.java", source.toString(), false, null);
 		fParser.setSource(cu);
 		fParser.setResolveBindings(true);
 		return (CompilationUnit)fParser.createAST(null);
 	}

 	private void checkSelection(StringBuffer s, int offset, int length, OccurrenceLocation[] expected) throws Exception {
 		OccurrenceLocation[] selectedNodes= getHighlights(s, offset, length);
 		assertEquals("number of selections", expected.length, selectedNodes.length);
 		sortByStartIndex(selectedNodes);
 		sortByStartIndex(expected);
 		for (int i= 0; i < selectedNodes.length; i++) {
 			assertEquals(expected[i].getOffset(), selectedNodes[i].getOffset());
 			assertEquals(expected[i].getLength(), selectedNodes[i].getLength());
 		}
 	}

 	private void sortByStartIndex(OccurrenceLocation[] OccurrenceLocations) {
 		Arrays.sort(OccurrenceLocations, new Comparator() {
 			public int compare(Object arg0, Object arg1) {
 				OccurrenceLocation node0= (OccurrenceLocation)arg0;
 				OccurrenceLocation node1= (OccurrenceLocation)arg1;
 				return node0.getOffset() - node1.getOffset();
 			}
 		});
 	}

 	//pattern must be found - otherwise it's assumed to be an error
 	private OccurrenceLocation find(StringBuffer s, String pattern, int ithOccurrence) {
 		if (ithOccurrence < 1)
 			throw new IllegalStateException("ithOccurrence = " + ithOccurrence);
 		return find(s, pattern, ithOccurrence, 0);
 	}

 	private OccurrenceLocation find(StringBuffer s, String pattern, int ithOccurrence, int startIdx) {
 		if (startIdx < 0 || startIdx > s.length())
 			throw new IllegalStateException("startIdx = " + startIdx);
 		int idx= s.indexOf(pattern, startIdx);
 		if (idx == -1)
 			throw new IllegalStateException("not found \"" + pattern + "\" in \"" + s.substring(startIdx));
 		if (ithOccurrence == 1)
 			return new OccurrenceLocation(idx, pattern.length(), 0, "");
 		return find(s, pattern, ithOccurrence - 1, idx + 1);
 	}

 	public void testMarkMethodExits1() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("class A{\n");
 		s.append("   int foo(String s) throws Exception {\n");
 		s.append("      try {\n");
 		s.append("         if (s == null)\n");
 		s.append("            throw new NullPointerException();\n");
 		s.append("         else if (s.length() > 10)\n");
 		s.append("            throw new IllegalArgumentException();\n");
 		s.append("         else\n");
 		s.append("            throw new Exception();\n");
 		s.append("      } catch (NullPointerException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      } catch (IllegalArgumentException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("      return s.length();\n");
 		s.append("   }\n");
 		s.append("}\n");
 		int offset= 1 + s.indexOf("int");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "int", 1), find(s, "throw", 4), find(s, "return s.length();", 1) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits2() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("class A{\n");
 		s.append("   int foo(String s) throws Exception {\n");
 		s.append("      try {\n");
 		s.append("         if (s == null)\n");
 		s.append("            throw new NullPointerException();\n");
 		s.append("         else if (s.length() > 10)\n");
 		s.append("            throw new IllegalArgumentException();\n");
 		s.append("         else\n");
 		s.append("            throw new Exception();\n");
 		s.append("      } catch (NullPointerException | IllegalArgumentException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("      return s.length();\n");
 		s.append("   }\n");
 		s.append("}\n");
 		int offset= 1 + s.indexOf("int");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "int", 1), find(s, "throw", 4), find(s, "return s.length();", 1) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits3() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.BufferedReader;\n");
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.LineNumberReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
 		s.append("            new FileReader(\"somefile\")))) {\n");
 		s.append("         String line;\n");
 		s.append("         while ((line = reader.readLine()) != null) {\n");
 		s.append("            System.out.println(line);\n");
 		s.append("         }\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("void");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "FileReader", 2), find(s, "readLine", 1), find(s, "}", 2), find(s, "}", 3) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits4() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.BufferedReader;\n");
 		s.append("import java.io.FileNotFoundException;\n");
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.LineNumberReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
 		s.append("            new FileReader(\"somefile\")))) {\n");
 		s.append("         String line;\n");
 		s.append("         while ((line = reader.readLine()) != null) {\n");
 		s.append("            System.out.println(line);\n");
 		s.append("         }\n");
 		s.append("      } catch (FileNotFoundException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("void");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "readLine", 1), find(s, "}", 2), find(s, "}", 4) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits5() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.BufferedReader;\n");
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.IOException;\n");
 		s.append("import java.io.LineNumberReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
 		s.append("            new FileReader(\"somefile\")))) {\n");
 		s.append("         String line;\n");
 		s.append("         while ((line = reader.readLine()) != null) {\n");
 		s.append("            System.out.println(line);\n");
 		s.append("         }\n");
 		s.append("      } catch (IOException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("void");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "}", 4) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits6() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.FileReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (FileReader reader1 = new FileReader(\"file1\");\n");
 		s.append("      FileReader reader2 = new FileReader(\"file2\");\n");
 		s.append("      FileReader reader3 = new FileReader(\"file3\")) {\n");
 		s.append("         int ch;\n");
 		s.append("         while ((ch = reader1.read()) != -1) {\n");
 		s.append("            System.out.println(ch);\n");
 		s.append("         }\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("void");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "void", 1),
 				find(s, "reader1", 1), find(s, "FileReader", 3),
 				find(s, "reader2", 1), find(s, "FileReader", 5),
 				find(s, "reader3", 1), find(s, "FileReader", 7),
 				find(s, "read", 5), find(s, "}", 2), find(s, "}", 3) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testMarkMethodExits7() throws Exception {
 		fFinder= new MethodExitsFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.FileReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (ACloseable closeable = new ACloseable();\n");
 		s.append("               FileReader reader = new FileReader(\"file1\")) {\n");
 		s.append("         int ch;\n");
 		s.append("         while ((ch = reader.read()) != -1) {\n");
 		s.append("            System.out.println(ch);\n");
 		s.append("         }\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");
 		s.append("class ACloseable implements AutoCloseable {\n");
 		s.append("    @Override\n");
 		s.append("    public void close() { }\n");
 		s.append("}\n");
 		int offset= 1 + s.indexOf("void");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "FileReader", 3), find(s, "read", 3), find(s, "}", 2), find(s, "}", 3) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException1() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("class A{\n");
 		s.append("   int foo(String s) throws Exception {\n");
 		s.append("      try {\n");
 		s.append("         if (s == null)\n");
 		s.append("            throw new NullPointerException();\n");
 		s.append("         else if (s.length() > 10)\n");
 		s.append("            throw new IllegalArgumentException();\n");
 		s.append("         else\n");
 		s.append("            throw new Exception();\n");
 		s.append("      } catch (NullPointerException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      } catch (IllegalArgumentException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("      return s.length();\n");
 		s.append("   }\n");
 		s.append("}\n");
 		int offset= 1 + s.indexOf("NullPointerException e");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "throw", 2), find(s, "NullPointerException", 2) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException2() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("class A{\n");
 		s.append("   int foo(String s) throws Exception {\n");
 		s.append("      try {\n");
 		s.append("         if (s == null)\n");
 		s.append("            throw new NullPointerException();\n");
 		s.append("         else if (s.length() > 10)\n");
 		s.append("            throw new IllegalArgumentException();\n");
 		s.append("         else\n");
 		s.append("            throw new Exception();\n");
 		s.append("      } catch (NullPointerException | IllegalArgumentException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("      return s.length();\n");
 		s.append("   }\n");
 		s.append("}\n");
 		int offset= 1 + s.indexOf("NullPointerException | ");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "throw", 2), find(s, "NullPointerException", 2) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException3() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.BufferedReader;\n");
 		s.append("import java.io.FileNotFoundException;\n");
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.LineNumberReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
 		s.append("            new FileReader(\"somefile\")))) {\n");
 		s.append("         String line;\n");
 		s.append("         while ((line = reader.readLine()) != null) {\n");
 		s.append("            System.out.println(line);\n");
 		s.append("         }\n");
 		s.append("      } catch (FileNotFoundException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("FileNotFoundException e");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "FileNotFoundException", 2), find(s, "FileReader", 2) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException4() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.BufferedReader;\n");
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.IOException;\n");
 		s.append("import java.io.LineNumberReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
 		s.append("            new FileReader(\"somefile\")))) {\n");
 		s.append("         String line;\n");
 		s.append("         while ((line = reader.readLine()) != null) {\n");
 		s.append("            System.out.println(line);\n");
 		s.append("         }\n");
 		s.append("      } catch (IOException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("IOException e");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "IOException", 2), find(s, "FileReader", 2), find(s, "readLine", 1), find(s, "}", 2), find(s, "reader", 1) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException5() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.FileReader;\n");
 		s.append("import java.io.IOException;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (FileReader reader1 = new FileReader(\"file1\");\n");
 		s.append("      FileReader reader2 = new FileReader(\"file2\");\n");
 		s.append("      FileReader reader3 = new FileReader(\"file3\")) {\n");
 		s.append("         int ch;\n");
 		s.append("         while ((ch = reader1.read()) != -1) {\n");
 		s.append("            System.out.println(ch);\n");
 		s.append("         }\n");
 		s.append("      } catch (IOException e) {\n");
 		s.append("         e.printStackTrace();\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("IOException e");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "IOException", 2), find(s, "FileReader", 3), find(s, "FileReader", 5), find(s, "FileReader", 7), find(s, "read", 5),
 				find(s, "}", 2), find(s, "reader1", 1), find(s, "reader2", 1), find(s, "reader3", 1) };
 		checkSelection(s, offset, length, ranges);
 	}

 	public void testThrowingException6() throws Exception {
 		fFinder= new ExceptionOccurrencesFinder();
 		StringBuffer s= new StringBuffer();
 		s.append("import java.io.FileReader;\n");
 		s.append("class A {\n");
 		s.append("   void foo() throws Throwable {\n");
 		s.append("      try (FileReader reader1 = new FileReader(\"file1\");\n");
 		s.append("      FileReader reader2 = new FileReader(\"file2\");\n");
 		s.append("      FileReader reader3 = new FileReader(\"file3\")) {\n");
 		s.append("         int ch;\n");
 		s.append("         while ((ch = reader1.read()) != -1) {\n");
 		s.append("            System.out.println(ch);\n");
 		s.append("         }\n");
 		s.append("      }\n");
 		s.append("   }\n");
 		s.append("}\n");

 		int offset= 1 + s.indexOf("Throwable");//middle of word
 		int length= 0;
 		OccurrenceLocation[] ranges= { find(s, "Throwable", 1),
 				find(s, "reader1", 1), find(s, "FileReader", 3),
 				find(s, "reader2", 1), find(s, "FileReader", 5),
 				find(s, "reader3", 1), find(s, "FileReader", 7),
 				find(s, "read", 5), find(s, "}", 2) };
 		checkSelection(s, offset, length, ranges);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2011 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.jdt.text.tests;

	import java.util.Arrays;
	import java.util.Comparator;

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

	import org.eclipse.jdt.testplugin.JavaProjectHelper;

	import org.eclipse.jdt.core.ICompilationUnit;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IPackageFragmentRoot;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.dom.ASTParser;
	import org.eclipse.jdt.core.dom.CompilationUnit;

	import org.eclipse.jdt.ui.PreferenceConstants;
	import org.eclipse.jdt.ui.tests.core.Java17ProjectTestSetup;

	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.javaeditor.ASTProvider;
	import org.eclipse.jdt.internal.ui.search.ExceptionOccurrencesFinder;
	import org.eclipse.jdt.internal.ui.search.IOccurrencesFinder;
	import org.eclipse.jdt.internal.ui.search.IOccurrencesFinder.OccurrenceLocation;
	import org.eclipse.jdt.internal.ui.search.MethodExitsFinder;

	/**
	* Tests the Java Editor's occurrence marking feature.
	*/
	public class MarkOccurrenceTest17 extends TestCase {
	private static final Class THIS= MarkOccurrenceTest17.class;

	public static Test suite() {
	return new Java17ProjectTestSetup(new TestSuite(THIS));
	}

	public static Test setUpTest(Test test) {
	return new Java17ProjectTestSetup(test);
	}

	private ASTParser fParser;

	private IOccurrencesFinder fFinder;

	private IJavaProject fJProject1;

	private IPackageFragmentRoot fSourceFolder;

	/*
	* @see junit.framework.TestCase#setUp()
	*/
	protected void setUp() throws Exception {
	fParser= ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);

	fJProject1= Java17ProjectTestSetup.getProject();
	fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src");
	JavaPlugin.getDefault().getPreferenceStore().setValue(PreferenceConstants.EDITOR_MARK_OCCURRENCES, true);
	JavaPlugin.getDefault().getPreferenceStore().setValue(PreferenceConstants.EDITOR_MARK_IMPLEMENTORS, true);
	}

	/* (non-Javadoc)
	* @see junit.framework.TestCase#tearDown()
	*/
	protected void tearDown() throws Exception {
	JavaProjectHelper.clear(fJProject1, Java17ProjectTestSetup.getDefaultClasspath());
	}

	private OccurrenceLocation[] getHighlights(StringBuffer source, int offset, int length) throws Exception {
	CompilationUnit root= createCompilationUnit(source);
	String errorString= fFinder.initialize(root, offset, length);
	assertNull(errorString, errorString);
	return fFinder.getOccurrences();
	}

	private CompilationUnit createCompilationUnit(StringBuffer source) throws JavaModelException {
	IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
	ICompilationUnit cu= pack1.createCompilationUnit("E.java", source.toString(), false, null);
	fParser.setSource(cu);
	fParser.setResolveBindings(true);
	return (CompilationUnit)fParser.createAST(null);
	}

	private void checkSelection(StringBuffer s, int offset, int length, OccurrenceLocation[] expected) throws Exception {
	OccurrenceLocation[] selectedNodes= getHighlights(s, offset, length);
	assertEquals("number of selections", expected.length, selectedNodes.length);
	sortByStartIndex(selectedNodes);
	sortByStartIndex(expected);
	for (int i= 0; i < selectedNodes.length; i++) {
	assertEquals(expected[i].getOffset(), selectedNodes[i].getOffset());
	assertEquals(expected[i].getLength(), selectedNodes[i].getLength());
	}
	}

	private void sortByStartIndex(OccurrenceLocation[] OccurrenceLocations) {
	Arrays.sort(OccurrenceLocations, new Comparator() {
	public int compare(Object arg0, Object arg1) {
	OccurrenceLocation node0= (OccurrenceLocation)arg0;
	OccurrenceLocation node1= (OccurrenceLocation)arg1;
	return node0.getOffset() - node1.getOffset();
	}
	});
	}

	//pattern must be found - otherwise it's assumed to be an error
	private OccurrenceLocation find(StringBuffer s, String pattern, int ithOccurrence) {
	if (ithOccurrence < 1)
	throw new IllegalStateException("ithOccurrence = " + ithOccurrence);
	return find(s, pattern, ithOccurrence, 0);
	}

	private OccurrenceLocation find(StringBuffer s, String pattern, int ithOccurrence, int startIdx) {
	if (startIdx < 0 \|\| startIdx > s.length())
	throw new IllegalStateException("startIdx = " + startIdx);
	int idx= s.indexOf(pattern, startIdx);
	if (idx == -1)
	throw new IllegalStateException("not found \"" + pattern + "\" in \"" + s.substring(startIdx));
	if (ithOccurrence == 1)
	return new OccurrenceLocation(idx, pattern.length(), 0, "");
	return find(s, pattern, ithOccurrence - 1, idx + 1);
	}

	public void testMarkMethodExits1() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("class A{\n");
	s.append(" int foo(String s) throws Exception {\n");
	s.append(" try {\n");
	s.append(" if (s == null)\n");
	s.append(" throw new NullPointerException();\n");
	s.append(" else if (s.length() > 10)\n");
	s.append(" throw new IllegalArgumentException();\n");
	s.append(" else\n");
	s.append(" throw new Exception();\n");
	s.append(" } catch (NullPointerException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" } catch (IllegalArgumentException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" return s.length();\n");
	s.append(" }\n");
	s.append("}\n");
	int offset= 1 + s.indexOf("int");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "int", 1), find(s, "throw", 4), find(s, "return s.length();", 1) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits2() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("class A{\n");
	s.append(" int foo(String s) throws Exception {\n");
	s.append(" try {\n");
	s.append(" if (s == null)\n");
	s.append(" throw new NullPointerException();\n");
	s.append(" else if (s.length() > 10)\n");
	s.append(" throw new IllegalArgumentException();\n");
	s.append(" else\n");
	s.append(" throw new Exception();\n");
	s.append(" } catch (NullPointerException \| IllegalArgumentException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" return s.length();\n");
	s.append(" }\n");
	s.append("}\n");
	int offset= 1 + s.indexOf("int");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "int", 1), find(s, "throw", 4), find(s, "return s.length();", 1) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits3() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.BufferedReader;\n");
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.LineNumberReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
	s.append(" new FileReader(\"somefile\")))) {\n");
	s.append(" String line;\n");
	s.append(" while ((line = reader.readLine()) != null) {\n");
	s.append(" System.out.println(line);\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("void");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "FileReader", 2), find(s, "readLine", 1), find(s, "}", 2), find(s, "}", 3) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits4() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.BufferedReader;\n");
	s.append("import java.io.FileNotFoundException;\n");
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.LineNumberReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
	s.append(" new FileReader(\"somefile\")))) {\n");
	s.append(" String line;\n");
	s.append(" while ((line = reader.readLine()) != null) {\n");
	s.append(" System.out.println(line);\n");
	s.append(" }\n");
	s.append(" } catch (FileNotFoundException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("void");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "readLine", 1), find(s, "}", 2), find(s, "}", 4) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits5() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.BufferedReader;\n");
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.IOException;\n");
	s.append("import java.io.LineNumberReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
	s.append(" new FileReader(\"somefile\")))) {\n");
	s.append(" String line;\n");
	s.append(" while ((line = reader.readLine()) != null) {\n");
	s.append(" System.out.println(line);\n");
	s.append(" }\n");
	s.append(" } catch (IOException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("void");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "}", 4) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits6() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.FileReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (FileReader reader1 = new FileReader(\"file1\");\n");
	s.append(" FileReader reader2 = new FileReader(\"file2\");\n");
	s.append(" FileReader reader3 = new FileReader(\"file3\")) {\n");
	s.append(" int ch;\n");
	s.append(" while ((ch = reader1.read()) != -1) {\n");
	s.append(" System.out.println(ch);\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("void");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "void", 1),
	find(s, "reader1", 1), find(s, "FileReader", 3),
	find(s, "reader2", 1), find(s, "FileReader", 5),
	find(s, "reader3", 1), find(s, "FileReader", 7),
	find(s, "read", 5), find(s, "}", 2), find(s, "}", 3) };
	checkSelection(s, offset, length, ranges);
	}

	public void testMarkMethodExits7() throws Exception {
	fFinder= new MethodExitsFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.FileReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (ACloseable closeable = new ACloseable();\n");
	s.append(" FileReader reader = new FileReader(\"file1\")) {\n");
	s.append(" int ch;\n");
	s.append(" while ((ch = reader.read()) != -1) {\n");
	s.append(" System.out.println(ch);\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");
	s.append("class ACloseable implements AutoCloseable {\n");
	s.append(" @Override\n");
	s.append(" public void close() { }\n");
	s.append("}\n");
	int offset= 1 + s.indexOf("void");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "void", 1), find(s, "reader", 1), find(s, "FileReader", 3), find(s, "read", 3), find(s, "}", 2), find(s, "}", 3) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException1() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("class A{\n");
	s.append(" int foo(String s) throws Exception {\n");
	s.append(" try {\n");
	s.append(" if (s == null)\n");
	s.append(" throw new NullPointerException();\n");
	s.append(" else if (s.length() > 10)\n");
	s.append(" throw new IllegalArgumentException();\n");
	s.append(" else\n");
	s.append(" throw new Exception();\n");
	s.append(" } catch (NullPointerException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" } catch (IllegalArgumentException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" return s.length();\n");
	s.append(" }\n");
	s.append("}\n");
	int offset= 1 + s.indexOf("NullPointerException e");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "throw", 2), find(s, "NullPointerException", 2) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException2() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("class A{\n");
	s.append(" int foo(String s) throws Exception {\n");
	s.append(" try {\n");
	s.append(" if (s == null)\n");
	s.append(" throw new NullPointerException();\n");
	s.append(" else if (s.length() > 10)\n");
	s.append(" throw new IllegalArgumentException();\n");
	s.append(" else\n");
	s.append(" throw new Exception();\n");
	s.append(" } catch (NullPointerException \| IllegalArgumentException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" return s.length();\n");
	s.append(" }\n");
	s.append("}\n");
	int offset= 1 + s.indexOf("NullPointerException \| ");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "throw", 2), find(s, "NullPointerException", 2) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException3() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.BufferedReader;\n");
	s.append("import java.io.FileNotFoundException;\n");
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.LineNumberReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
	s.append(" new FileReader(\"somefile\")))) {\n");
	s.append(" String line;\n");
	s.append(" while ((line = reader.readLine()) != null) {\n");
	s.append(" System.out.println(line);\n");
	s.append(" }\n");
	s.append(" } catch (FileNotFoundException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("FileNotFoundException e");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "FileNotFoundException", 2), find(s, "FileReader", 2) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException4() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.BufferedReader;\n");
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.IOException;\n");
	s.append("import java.io.LineNumberReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (LineNumberReader reader = new LineNumberReader(new BufferedReader(\n");
	s.append(" new FileReader(\"somefile\")))) {\n");
	s.append(" String line;\n");
	s.append(" while ((line = reader.readLine()) != null) {\n");
	s.append(" System.out.println(line);\n");
	s.append(" }\n");
	s.append(" } catch (IOException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("IOException e");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "IOException", 2), find(s, "FileReader", 2), find(s, "readLine", 1), find(s, "}", 2), find(s, "reader", 1) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException5() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.FileReader;\n");
	s.append("import java.io.IOException;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (FileReader reader1 = new FileReader(\"file1\");\n");
	s.append(" FileReader reader2 = new FileReader(\"file2\");\n");
	s.append(" FileReader reader3 = new FileReader(\"file3\")) {\n");
	s.append(" int ch;\n");
	s.append(" while ((ch = reader1.read()) != -1) {\n");
	s.append(" System.out.println(ch);\n");
	s.append(" }\n");
	s.append(" } catch (IOException e) {\n");
	s.append(" e.printStackTrace();\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("IOException e");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "IOException", 2), find(s, "FileReader", 3), find(s, "FileReader", 5), find(s, "FileReader", 7), find(s, "read", 5),
	find(s, "}", 2), find(s, "reader1", 1), find(s, "reader2", 1), find(s, "reader3", 1) };
	checkSelection(s, offset, length, ranges);
	}

	public void testThrowingException6() throws Exception {
	fFinder= new ExceptionOccurrencesFinder();
	StringBuffer s= new StringBuffer();
	s.append("import java.io.FileReader;\n");
	s.append("class A {\n");
	s.append(" void foo() throws Throwable {\n");
	s.append(" try (FileReader reader1 = new FileReader(\"file1\");\n");
	s.append(" FileReader reader2 = new FileReader(\"file2\");\n");
	s.append(" FileReader reader3 = new FileReader(\"file3\")) {\n");
	s.append(" int ch;\n");
	s.append(" while ((ch = reader1.read()) != -1) {\n");
	s.append(" System.out.println(ch);\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append(" }\n");
	s.append("}\n");

	int offset= 1 + s.indexOf("Throwable");//middle of word
	int length= 0;
	OccurrenceLocation[] ranges= { find(s, "Throwable", 1),
	find(s, "reader1", 1), find(s, "FileReader", 3),
	find(s, "reader2", 1), find(s, "FileReader", 5),
	find(s, "reader3", 1), find(s, "FileReader", 7),
	find(s, "read", 5), find(s, "}", 2) };
	checkSelection(s, offset, length, ranges);
	}
	}