/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.find;

import com.intellij.JavaTestUtil;
import com.intellij.codeInsight.daemon.DaemonAnalyzerTestCase;
import com.intellij.find.impl.FindInProjectUtil;
import com.intellij.find.replaceInProject.ReplaceInProjectManager;
import com.intellij.lang.properties.IProperty;
import com.intellij.lang.properties.psi.PropertiesFile;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.Result;
import com.intellij.openapi.application.ex.PathManagerEx;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.command.WriteCommandAction;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileTypes.FileTypes;
import com.intellij.openapi.fileTypes.PlainTextFileType;
import com.intellij.openapi.projectRoots.Sdk;
import com.intellij.openapi.util.ProperTextRange;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.LocalFileSystem;
import com.intellij.openapi.vfs.VfsUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.*;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.LocalSearchScope;
import com.intellij.testFramework.IdeaTestUtil;
import com.intellij.testFramework.LightVirtualFile;
import com.intellij.testFramework.PlatformTestUtil;
import com.intellij.testFramework.PsiTestUtil;
import com.intellij.testFramework.fixtures.TempDirTestFixture;
import com.intellij.testFramework.fixtures.impl.LightTempDirTestFixtureImpl;
import com.intellij.testFramework.fixtures.impl.TempDirTestFixtureImpl;
import com.intellij.usageView.UsageInfo;
import com.intellij.usages.FindUsagesProcessPresentation;
import com.intellij.usages.Usage;
import com.intellij.util.ArrayUtil;
import com.intellij.util.CommonProcessors;
import com.intellij.util.ThrowableRunnable;
import com.intellij.util.WaitFor;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 * @author MYakovlev
 * @since Oct 17, 2002
 */
public class FindManagerTest extends DaemonAnalyzerTestCase {
  private FindManager myFindManager;
  private VirtualFile[] mySourceDirs;

  @Override
  protected void setUp() throws Exception {
    super.setUp();
    myFindManager = FindManager.getInstance(myProject);
  }

  @Override
  protected void tearDown() throws Exception {
    myFindManager = null;
    super.tearDown();
  }

  public void testFindString() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");

    String text = "public static class MyClass{\n/*done*/\npublic static void main(){}}";
    FindResult findResult = myFindManager.findString(text, 0, findModel);
    assertTrue(findResult.isStringFound());

    findModel = new FindModel();
    findModel.setStringToFind("done");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(true);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);

    findResult = myFindManager.findString(text, 40, findModel);
    assertFalse(findResult.isStringFound());

    findModel = new FindModel();
    findModel.setStringToFind("done");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(true);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);
    findModel.setForward(false);

    findResult = myFindManager.findString(text, 40, findModel);
    assertTrue(findResult.isStringFound());

    findModel = new FindModel();
    findModel.setStringToFind("done");
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);

    findResult = myFindManager.findString(text, 0, findModel);
    assertTrue(findResult.isStringFound());

    findModel = new FindModel();
    findModel.setStringToFind("don");
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);

    final FindResult[] findResultArr = new FindResult[1];
    findInNewThread(findModel, myFindManager, text, 0, findResultArr);
    new WaitFor(30 *1000){
      @Override
      protected boolean condition() {
        return findResultArr[0] != null;
      }
    }.assertCompleted();

    assertFalse(findResultArr[0].isStringFound());
  }

  private static Thread findInNewThread(final FindModel model,
                                  final FindManager findManager,
                                  final CharSequence text,
                                  final int offset,
                                  final FindResult[] op_result){
    op_result[0] = null;
    Thread findThread = new Thread(){
      @Override
      public void run(){
        op_result[0] = findManager.findString(text, offset, model);
      }
    };
    findThread.start();
    return findThread;
  }

  public void testFindUsages() {
    initProject("findManager", "src", "src1");
    String projectDir = FileUtil.toSystemDependentName(PathManagerEx.getTestDataPath() + "/find/findManager");

    FindModel findModel = new FindModel();
    findModel.setStringToFind("done");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setProjectScope(true);
    findModel.setDirectoryName(projectDir + File.separatorChar + "src1");
    findModel.setWithSubdirectories(true);
    checkFindUsages(12, findModel);

    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setProjectScope(false);
    findModel.setDirectoryName(projectDir + File.separatorChar + "src1");
    findModel.setWithSubdirectories(true);
    checkFindUsages(6, findModel);

    findModel.setWholeWordsOnly(true);
    checkFindUsages(5, findModel);
  }

  private void checkFindUsages(int expectedResults, FindModel findModel) {
    Collection<UsageInfo> usages = findUsages(findModel);
    assertEquals(expectedResults, usages.size());
  }

  private List<UsageInfo> findUsages(@NotNull FindModel findModel) {
    PsiDirectory psiDirectory = FindInProjectUtil.getPsiDirectory(findModel, myProject);
    List<UsageInfo> result = new ArrayList<UsageInfo>();
    final CommonProcessors.CollectProcessor<UsageInfo> collector = new CommonProcessors.CollectProcessor<UsageInfo>(result);
    FindInProjectUtil.findUsages(findModel, psiDirectory, myProject, collector, new FindUsagesProcessPresentation(FindInProjectUtil.setupViewPresentation(true, findModel)));
    return result;
  }

  public void testFindWholeWordsInProperties() {
    initProject("findInPath", "src");
    searchProperty("xx.yy");
    searchProperty(".yy");
    searchProperty("xx.");
  }

  private void searchProperty(String query) {
    FindModel findModel = new FindModel();
    findModel.setStringToFind(query);
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setProjectScope(true);
    findModel.setDirectoryName(mySourceDirs[0].getPath());
    findModel.setWithSubdirectories(true);

    List<UsageInfo> usages = findUsages(findModel);
    assertEquals(2, usages.size());
    if (!(usages.get(0).getFile() instanceof PsiJavaFile)) {
      Collections.swap(usages, 0, 1);
    }

    PsiElement refElement = getParentFromUsage(usages.get(0));
    assertTrue(refElement instanceof PsiLiteralExpression);
    assertEquals("xx.yy", ((PsiLiteralExpression)refElement).getValue());

    VirtualFile file = mySourceDirs[0].findFileByRelativePath("x/dd.properties");
    assertNotNull(file);
    PropertiesFile propertiesFile = (PropertiesFile)PsiManager.getInstance(myProject).findFile(file);
    assertNotNull(propertiesFile);
    refElement = getParentFromUsage(usages.get(1));
    assertTrue(refElement instanceof IProperty);
    assertSame(propertiesFile.findPropertyByKey("xx.yy"), refElement);
  }

  private static PsiElement getParentFromUsage(UsageInfo usage) {
    ProperTextRange range = usage.getRangeInElement();
    assertNotNull(range);
    PsiElement element = usage.getElement();
    assertNotNull(element);
    PsiElement elementAt = element.findElementAt(range.getStartOffset());
    assertNotNull(elementAt);
    return elementAt.getParent();
  }

  public void testFindInClassHierarchy() {
    initProject("findInClassHierarchy", "src");

    FindModel findModel = new FindModel();
    findModel.setStringToFind("instanceof");
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    final JavaPsiFacade facade = JavaPsiFacade.getInstance(getProject());
    final PsiClass baseClass = facade.findClass("A", GlobalSearchScope.allScope(getProject()));
    final PsiClass implClass = facade.findClass("AImpl", GlobalSearchScope.allScope(getProject()));
    findModel.setCustomScope(new LocalSearchScope(new PsiElement[]{baseClass, implClass}));

    List<UsageInfo> usages = findUsages(findModel);
    assertEquals(2, usages.size());
  }

  public void testDollars() throws Exception {
    createFile(myModule, "A.java", "foo foo$ $foo");
    createFile(myModule, "A.txt", "foo foo$ $foo");

    FindModel findModel = new FindModel();
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setProjectScope(true);

    findModel.setStringToFind("foo");
    assertSize(2, findUsages(findModel));

    findModel.setStringToFind("foo$");
    assertSize(2, findUsages(findModel));

    findModel.setStringToFind("$foo");
    assertSize(2, findUsages(findModel));
  }

  public void testFindInOpenedFilesIncludesNoneProjectButOpenedFile() throws IOException {
    File dir = createTempDirectory();
    File file = new File(dir.getPath(), "A.test1234");
    file.createNewFile();
    FileUtil.writeToFile(file, "foo fo foo");
    VirtualFile nonProjectFile = VfsUtil.findFileByIoFile(file, true);
    assertNotNull(nonProjectFile);

    FindModel findModel = new FindModel();
    findModel.setStringToFind("fo");
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setCustomScope(true);
    findModel.setCustomScope(new GlobalSearchScope.FilesScope(myProject, ContainerUtil.list(nonProjectFile)));

    assertSize(1, findUsages(findModel));
  }

  public void testWholeWordsInNonIndexedFiles() throws Exception {
    createFile(myModule, "A.test123", "foo fo foo");

    // don't use createFile here because it creates PsiFile and runs file type autodetection
    // in real life some files might not be autodetected as plain text until the search starts 
    VirtualFile custom = new WriteCommandAction<VirtualFile>(myProject) {
      @Override
      protected void run(@NotNull Result<VirtualFile> result) throws Throwable {
        File dir = createTempDirectory();
        File file = new File(dir.getPath(), "A.test1234");
        file.createNewFile();
        FileUtil.writeToFile(file, "foo fo foo");
        addSourceContentToRoots(myModule, VfsUtil.findFileByIoFile(dir, true));
        result.setResult(VfsUtil.findFileByIoFile(file, true));
      }
    }.execute().getResultObject();
    
    assertNull(FileDocumentManager.getInstance().getCachedDocument(custom));
    assertEquals(PlainTextFileType.INSTANCE, custom.getFileType());

    FindModel findModel = new FindModel();
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);
    findModel.setProjectScope(true);

    findModel.setStringToFind("fo");
    assertSize(2, findUsages(findModel));
    
    // and we should get the same with text loaded
    assertNotNull(FileDocumentManager.getInstance().getDocument(custom));
    assertEquals(FileTypes.PLAIN_TEXT, custom.getFileType());

    assertSize(2, findUsages(findModel));
  }

  public void testReplaceRegexp() {
    FindModel findModel = new FindModel();
    findModel.setStringToFind("bug_(?=here)");
    findModel.setStringToReplace("x_$0t");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);
    findModel.setRegularExpressions(true);
    findModel.setPromptOnReplace(false);

    myFindManager.setFindNextModel(null);
    myFindManager.getFindInFileModel().copyFrom(findModel);

    String text = "bug_here\nbug_here";
    configureByText(FileTypes.PLAIN_TEXT, text);
    assertTrue(FindUtil.replace(getProject(), getEditor(), 0, findModel));

    assertEquals("x_bug_there\nx_bug_there", getEditor().getDocument().getText());
  }

  public void testReplaceRegexp1() {
    FindModel findModel = new FindModel();
    findModel.setStringToFind("bug_(?=here)");
    findModel.setStringToReplace("$0");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);
    findModel.setRegularExpressions(true);
    findModel.setPromptOnReplace(false);

    myFindManager.setFindNextModel(null);
    myFindManager.getFindInFileModel().copyFrom(findModel);

    String text = "bug_here\nbug_here";
    configureByText(FileTypes.PLAIN_TEXT, text);
    assertTrue(FindUtil.replace(getProject(), getEditor(), 0, findModel));

    assertEquals(text, getEditor().getDocument().getText());
  }

  public void testReplaceRegexpWithNewLine() {
    FindModel findModel = new FindModel();
    findModel.setStringToFind("xxx");
    findModel.setStringToReplace("xxx\\n");
    findModel.setWholeWordsOnly(false);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);
    findModel.setRegularExpressions(true);
    findModel.setPromptOnReplace(false);

    myFindManager.setFindNextModel(null);
    myFindManager.getFindInFileModel().copyFrom(findModel);

    String text = "xxx";
    configureByText(FileTypes.PLAIN_TEXT, text);
    assertTrue(FindUtil.replace(getProject(), getEditor(), 0, findModel));

    assertEquals(text+"\n", getEditor().getDocument().getText());
  }

  private  void initProject(String folderName, final String... sourceDirs) {
    final String testDir = JavaTestUtil.getJavaTestDataPath() + "/find/" + folderName;
    ApplicationManager.getApplication().runWriteAction(new Runnable(){
      @Override
      public void run(){
        try{
          mySourceDirs = new VirtualFile[sourceDirs.length];
          for (int i = 0; i < sourceDirs.length; i++){
            String sourcePath = testDir + "/" + sourceDirs[i];
            mySourceDirs[i] = LocalFileSystem.getInstance().refreshAndFindFileByPath(FileUtil.toSystemIndependentName(sourcePath));
          }

          VirtualFile projectDir = LocalFileSystem.getInstance().refreshAndFindFileByPath(FileUtil.toSystemIndependentName(testDir));
          Sdk jdk = IdeaTestUtil.getMockJdk17();
          PsiTestUtil.removeAllRoots(myModule, jdk);
          PsiTestUtil.addContentRoot(myModule, projectDir);
          for (VirtualFile sourceDir : mySourceDirs) {
            PsiTestUtil.addSourceRoot(myModule, sourceDir);
          }
        }
        catch (Exception e){
          throw new RuntimeException(e);
        }
      }
    });
  }

  public void testReplaceAll() throws FindManager.MalformedReplacementStringException {
    final FindModel findModel = new FindModel();
    String toFind = "xxx";
    @SuppressWarnings("SpellCheckingInspection") String toReplace = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
    findModel.setStringToFind(toFind);
    findModel.setStringToReplace(toReplace);
    findModel.setWholeWordsOnly(true);
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(false);
    findModel.setProjectScope(true);
    findModel.setRegularExpressions(false);
    findModel.setPromptOnReplace(false);

    myFindManager.setFindNextModel(null);
    myFindManager.getFindInFileModel().copyFrom(findModel);

    String text = StringUtil.repeat(toFind + "\n",6);
    configureByText(FileTypes.PLAIN_TEXT, text);

    final List<Usage> usages = FindUtil.findAll(getProject(), myEditor, findModel);
    assertNotNull(usages);
    CommandProcessor.getInstance().executeCommand(getProject(), new Runnable() {
      @Override
      public void run() {
        for (Usage usage : usages) {
          try {
            ReplaceInProjectManager.getInstance(getProject()).replaceUsage(usage, findModel, Collections.<Usage>emptySet(), false);
          }
          catch (FindManager.MalformedReplacementStringException e) {
            throw new RuntimeException(e);
          }
        }
      }
    }, "", null);
    String newText = StringUtil.repeat(toReplace + "\n",6);
    assertEquals(newText, getEditor().getDocument().getText());
  }

  public void testFindInFileUnderLibraryUnderProject() {
    initProject("libUnderProject", "src");
    String libDir = JavaTestUtil.getJavaTestDataPath() + "/find/libUnderProject/lib";
    PsiTestUtil.addLibrary(myModule, "lib", libDir, new String[]{""}, ArrayUtil.EMPTY_STRING_ARRAY);

    FindModel findModel = new FindModel();
    findModel.setStringToFind("TargetWord");
    findModel.setFromCursor(false);
    findModel.setGlobal(true);
    findModel.setMultipleFiles(true);

    findModel.setWholeWordsOnly(false);
    assertSize(2, findUsages(findModel));

    findModel.setWholeWordsOnly(true);
    assertSize(2, findUsages(findModel));
  }

  public void testLocalScopeSearchPerformance() throws Exception {
    final int fileCount = 3000;
    final int lineCount = 500;
    TempDirTestFixture fixture = new LightTempDirTestFixtureImpl();
    fixture.setUp();

    try {
      String sampleText = StringUtil.repeat("zoo TargetWord foo bar goo\n", lineCount);
      for (int i = 0; i < fileCount; i++) {
        fixture.createFile("a" + i + ".txt", sampleText);
      }
      PsiTestUtil.addSourceContentToRoots(myModule, fixture.getFile(""));

      VirtualFile file = fixture.createFile("target.txt", sampleText);
      PsiFile psiFile = PsiManager.getInstance(myProject).findFile(file);
      assertNotNull(psiFile);
      final FindModel findModel = new FindModel();
      findModel.setStringToFind("TargetWord");
      findModel.setWholeWordsOnly(true);
      findModel.setFromCursor(false);
      findModel.setGlobal(true);
      findModel.setMultipleFiles(true);

      ThrowableRunnable test = new ThrowableRunnable() {
        @Override
        public void run() throws Throwable {
          assertSize(lineCount, findUsages(findModel));
        }
      };

      findModel.setCustomScope(GlobalSearchScope.fileScope(psiFile));
      PlatformTestUtil.startPerformanceTest("slow", 400, test).attempts(2).cpuBound().usesAllCPUCores().assertTiming();

      findModel.setCustomScope(new LocalSearchScope(psiFile));
      PlatformTestUtil.startPerformanceTest("slow", 400, test).attempts(2).cpuBound().usesAllCPUCores().assertTiming();
    }
    finally {
      fixture.tearDown();
    }
  }

  public void testFindInCommentsAndLiterals() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");

    String text = "\"done done done\" /* done done done */";
    FindManagerTestUtils.runFindInCommentsAndLiterals(myFindManager, findModel, text);

    findModel.setRegularExpressions(true);
    FindManagerTestUtils.runFindInCommentsAndLiterals(myFindManager, findModel, text);
  }

  public void testFindInCurrentFileOutsideProject() throws Exception {
    final TempDirTestFixture tempDirFixture = new TempDirTestFixtureImpl();
    tempDirFixture.setUp();
    try {
      VirtualFile file = tempDirFixture.createFile("a.txt", "foo bar foo");
      FindModel findModel = FindManagerTestUtils.configureFindModel("foo");
      findModel.setWholeWordsOnly(true);
      findModel.setCustomScope(new LocalSearchScope(PsiManager.getInstance(myProject).findFile(file)));
      assertSize(2, findUsages(findModel));
    }
    finally {
      tempDirFixture.tearDown();
    }
  }

  public void testFindInDirectoryOutsideProject() throws Exception {
    final TempDirTestFixture tempDirFixture = new TempDirTestFixtureImpl();
    tempDirFixture.setUp();
    try {
      tempDirFixture.createFile("a.txt", "foo bar foo");
      FindModel findModel = FindManagerTestUtils.configureFindModel("foo");
      findModel.setWholeWordsOnly(true);
      findModel.setProjectScope(false);
      findModel.setDirectoryName(tempDirFixture.getFile("").getPath());
      assertSize(2, findUsages(findModel));
    }
    finally {
      tempDirFixture.tearDown();
    }
  }

  public void testFindInJavaDocs() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");
    String text = "/** done done done */";

    findModel.setSearchContext(FindModel.SearchContext.IN_COMMENTS);
    FindManagerTestUtils.runFindForwardAndBackward(myFindManager, findModel, text);

    findModel.setRegularExpressions(true);
    FindManagerTestUtils.runFindForwardAndBackward(myFindManager, findModel, text);
  }

  public void testFindInCommentsProperlyWorksWithOffsets() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");

    String prefix = "/*";
    String text = prefix + "done*/";

    findModel.setSearchContext(FindModel.SearchContext.IN_COMMENTS);
    LightVirtualFile file = new LightVirtualFile("A.java", text);

    FindResult findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());

    findModel.setRegularExpressions(true);
    findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());
  }

  public void testFindInUserFileType() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");
    String text = "\"done done\"; 'done'; // done\n" +
                  "/* done\n" +
                  "done */";
    FindManagerTestUtils.runFindInCommentsAndLiterals(myFindManager, findModel, text, "cs");
  }

  public void testFindInLiteralToSkipQuotes() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("^done$");

    findModel.setRegularExpressions(true);
    findModel.setSearchContext(FindModel.SearchContext.IN_STRING_LITERALS);
    String text = "\"done\"; 'done'; 'done' \"done2\"";
    FindManagerTestUtils.runFindForwardAndBackward(myFindManager, findModel, text, "java");

    findModel.setStringToFind("done");
    findModel.setWholeWordsOnly(true);
    findModel.setRegularExpressions(false);
    text = "\"\"; \"done\"; 'done'; 'done' \"done2\"";
    FindManagerTestUtils.runFindForwardAndBackward(myFindManager, findModel, text, "java");
  }

  public void testFindInJavaDoc() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("do ne");
    findModel.setWholeWordsOnly(true);

    String text = "/** do ne do ne do ne */";

    findModel.setSearchContext(FindModel.SearchContext.IN_COMMENTS);
    FindManagerTestUtils.runFindForwardAndBackward(myFindManager, findModel, text, "java");
  }

  public void testPlusWholeWordsOnly() throws Exception {
    createFile(myModule, "A.java", "3 + '+' + 2");

    FindModel findModel = FindManagerTestUtils.configureFindModel("'+' +");
    findModel.setMultipleFiles(true);

    assertSize(1, findUsages(findModel));

    findModel.setCaseSensitive(true);
    assertSize(1, findUsages(findModel));

    findModel.setWholeWordsOnly(true);
    assertSize(1, findUsages(findModel));
  }

  public void testFindExceptComments() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");

    String prefix = "/*";
    String text = prefix + "done*/done";

    findModel.setSearchContext(FindModel.SearchContext.EXCEPT_COMMENTS);
    LightVirtualFile file = new LightVirtualFile("A.java", text);

    FindResult findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());
    assertTrue(findResult.getStartOffset() > prefix.length());

    findModel.setRegularExpressions(true);
    findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());
    assertTrue(findResult.getStartOffset() > prefix.length());
  }

  public void testFindExceptComments2() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("oo");

    String text = "//oooo";

    findModel.setSearchContext(FindModel.SearchContext.EXCEPT_COMMENTS);
    LightVirtualFile file = new LightVirtualFile("A.java", text);

    FindResult findResult = myFindManager.findString(text, 0, findModel, file);
    assertFalse(findResult.isStringFound());
  }

  public void testFindExceptLiterals() {
    FindModel findModel = FindManagerTestUtils.configureFindModel("done");

    String prefix = "\"";
    String text = prefix + "done\"done";

    findModel.setSearchContext(FindModel.SearchContext.EXCEPT_STRING_LITERALS);
    LightVirtualFile file = new LightVirtualFile("A.java", text);

    FindResult findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());
    assertTrue(findResult.getStartOffset() > prefix.length());

    findModel.setRegularExpressions(true);
    findResult = myFindManager.findString(text, prefix.length(), findModel, file);
    assertTrue(findResult.isStringFound());
    assertTrue(findResult.getStartOffset() > prefix.length());
  }
}