code: ///////////////////////////////////////////////////////////////////////////////////////////////
  // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
  // Copyright (C) 2001-2023 the original author or authors.
  //
  // This library is free software; you can redistribute it and/or
  // modify it under the terms of the GNU Lesser General Public
  // License as published by the Free Software Foundation; either
  // version 2.1 of the License, or (at your option) any later version.
  //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  ///////////////////////////////////////////////////////////////////////////////////////////////
  
  package org.checkstyle.suppressionxpathfilter;
  
  import java.io.File;
  import java.util.Arrays;
  import java.util.List;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
  import com.puppycrawl.tools.checkstyle.checks.coding.ReturnCountCheck;
  
  public class XpathRegressionReturnCountTest extends AbstractXpathTestSupport {
  
      @Override
      protected String getCheckName() {
          return ReturnCountCheck.class.getSimpleName();
      }
  
      @Test
      public void testOne() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount1.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          final String[] expectedViolation = {
              "16:5: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY_VOID, 5, 1),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
              "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/MODIFIERS",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/TYPE",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/TYPE/LITERAL_VOID"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testTwo() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount1.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          moduleConfig.addProperty("maxForVoid", "3");
  
          final String[] expectedViolation = {
              "16:5: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY_VOID, 5, 3),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
              "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/MODIFIERS",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/TYPE",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount1']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testVoid']]/TYPE/LITERAL_VOID"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testThree() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount2.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          final String[] expectedViolation = {
              "16:5: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY, 4, 2),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
              "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/MODIFIERS",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/TYPE",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/TYPE/LITERAL_BOOLEAN"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testFour() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount2.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          moduleConfig.addProperty("max", "3");
  
          final String[] expectedViolation = {
              "16:5: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY, 4, 3),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
              "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/MODIFIERS",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/TYPE",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount2']]"
                  + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testNonVoid']]/TYPE/LITERAL_BOOLEAN"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testFive() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount3.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          final String[] expectedViolation = {
              "4:5: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY_VOID, 5, 1),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
              "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount3']]"
                  + "/OBJBLOCK/CTOR_DEF[./IDENT[@text='SuppressionXpathRegressionReturnCount3']]",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount3']]"
                  + "/OBJBLOCK/CTOR_DEF[./IDENT[@text='SuppressionXpathRegressionReturnCount3']]"
                  + "/MODIFIERS",
                  "/COMPILATION_UNIT/CLASS_DEF"
                  + "[./IDENT[@text='SuppressionXpathRegressionReturnCount3']]"
                  + "/OBJBLOCK/CTOR_DEF/IDENT[@text='SuppressionXpathRegressionReturnCount3']"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testSix() throws Exception {
          final File fileToProcess = new File(
              getPath("SuppressionXpathRegressionReturnCount4.java")
          );
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(ReturnCountCheck.class);
  
          final String[] expectedViolation = {
              "7:42: " + getCheckMessage(ReturnCountCheck.class,
                          ReturnCountCheck.MSG_KEY, 4, 2),
          };
  
          final List<String> expectedXpathQueries = List.of(
                  "/COMPILATION_UNIT/CLASS_DEF"
                          + "[./IDENT[@text='SuppressionXpathRegressionReturnCount4']]"
                          + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='testLambda']]/SLIST"
                          + "/VARIABLE_DEF[./IDENT[@text='a']]/ASSIGN/LAMBDA[./IDENT[@text='i']]"
          );
  
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  }
  
  