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 com.google.checkstyle.test.chapter4formatting.rule4841indentation;
  
  import static com.puppycrawl.tools.checkstyle.checks.indentation.IndentationCheck.MSG_CHILD_ERROR;
  import static com.puppycrawl.tools.checkstyle.checks.indentation.IndentationCheck.MSG_ERROR;
  
  import org.junit.jupiter.api.Test;
  
  import com.google.checkstyle.test.base.AbstractIndentationTestSupport;
  import com.puppycrawl.tools.checkstyle.api.Configuration;
  import com.puppycrawl.tools.checkstyle.checks.indentation.IndentationCheck;
  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
  
  public class IndentationTest extends AbstractIndentationTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/google/checkstyle/test/chapter4formatting/rule4841indentation";
      }
  
      @Test
      public void testCorrectClass() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectClass.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectField() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectFieldAndParameter.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectFor() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectForAndParameter.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectIf() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectIfAndParameter.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectNewKeyword() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectNewChildren.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrect() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrect.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectReturn() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectReturnAndParameter.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectWhile() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectWhileDoWhileAndParameter.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectChained() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("ClassWithChainedMethodsCorrect.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testWarnChained() throws Exception {
          final String[] expected = {
              "18:5: " + getCheckMessage(IndentationCheck.class,
                      MSG_CHILD_ERROR, "method call", 4, 8),
              "23:5: " + getCheckMessage(IndentationCheck.class, MSG_ERROR, ".", 4, 8),
              "24:5: " + getCheckMessage(IndentationCheck.class, MSG_ERROR, ".", 4, 8),
              "27:5: " + getCheckMessage(IndentationCheck.class, MSG_ERROR, "new", 4, 8),
          };
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("ClassWithChainedMethods.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testCorrectAnnotationArrayInit() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          final Configuration checkConfig = getModuleConfig("Indentation");
          final String filePath = getPath("InputIndentationCorrectAnnotationArrayInit.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
  }
  