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.puppycrawl.tools.checkstyle.checks.modifier;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  import static com.puppycrawl.tools.checkstyle.checks.modifier.InterfaceMemberImpliedModifierCheck.MSG_KEY;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
  import com.puppycrawl.tools.checkstyle.DetailAstImpl;
  import com.puppycrawl.tools.checkstyle.api.TokenTypes;
  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
  
  public class ClassMemberImpliedModifierCheckTest
      extends AbstractModuleTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/puppycrawl/tools/checkstyle/checks/modifier/classmemberimpliedmodifier";
      }
  
      @Test
      public void testMethodsOnClass() throws Exception {
          final String[] expected = {
              "51:9: " + getCheckMessage(MSG_KEY, "static"),
              "58:9: " + getCheckMessage(MSG_KEY, "static"),
              "62:5: " + getCheckMessage(MSG_KEY, "static"),
              "69:9: " + getCheckMessage(MSG_KEY, "static"),
              "76:9: " + getCheckMessage(MSG_KEY, "static"),
              "83:5: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputClassMemberImpliedModifierOnClass.java"),
              expected);
      }
  
      @Test
      public void testGetRequiredTokens() {
          final ClassMemberImpliedModifierCheck check = new ClassMemberImpliedModifierCheck();
          final int[] actual = check.getRequiredTokens();
          final int[] expected = {
              TokenTypes.INTERFACE_DEF,
              TokenTypes.ENUM_DEF,
              TokenTypes.RECORD_DEF,
          };
          assertWithMessage("Required tokens are invalid")
              .that(actual)
              .isEqualTo(expected);
      }
  
      @Test
      public void testMethodsOnClassNoImpliedStaticEnum() throws Exception {
          final String[] expected = {
              "59:9: " + getCheckMessage(MSG_KEY, "static"),
              "77:9: " + getCheckMessage(MSG_KEY, "static"),
              "84:5: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputClassMemberImpliedModifierOnClassSetEnumFalse.java"),
              expected);
      }
  
      @Test
      public void testMethodsOnClassNoImpliedStaticInterface() throws Exception {
          final String[] expected = {
              "52:9: " + getCheckMessage(MSG_KEY, "static"),
              "63:5: " + getCheckMessage(MSG_KEY, "static"),
              "70:9: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputClassMemberImpliedModifierOnClassSetInterfaceFalse.java"),
              expected);
      }
  
      @Test
      public void testMethodsOnClassNoViolationsChecked() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
          verifyWithInlineConfigParser(
                  getPath("InputClassMemberImpliedModifierOnClassNoViolations.java"),
              expected);
      }
  
      @Test
      public void testMethodsOnInterface() throws Exception {
          final String[] expected = {
              "60:13: " + getCheckMessage(MSG_KEY, "static"),
              "67:13: " + getCheckMessage(MSG_KEY, "static"),
              "71:9: " + getCheckMessage(MSG_KEY, "static"),
              "78:13: " + getCheckMessage(MSG_KEY, "static"),
              "85:13: " + getCheckMessage(MSG_KEY, "static"),
              "92:9: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputClassMemberImpliedModifierOnInterface.java"),
              expected);
      }
  
      @Test
      public void testClassMemberImpliedModifierRecords() throws Exception {
          final String[] expected = {
              "16:5: " + getCheckMessage(MSG_KEY, "static"),
              "20:5: " + getCheckMessage(MSG_KEY, "static"),
              "24:5: " + getCheckMessage(MSG_KEY, "static"),
              "29:9: " + getCheckMessage(MSG_KEY, "static"),
              "33:9: " + getCheckMessage(MSG_KEY, "static"),
              "37:9: " + getCheckMessage(MSG_KEY, "static"),
              "42:9: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputClassMemberImpliedModifierRecords.java"),
                  expected);
      }
  
      @Test
      public void testClassMemberImpliedModifierNoViolationRecords() throws Exception {
          final String[] expected = {
              "16:5: " + getCheckMessage(MSG_KEY, "static"),
              "20:5: " + getCheckMessage(MSG_KEY, "static"),
              "33:9: " + getCheckMessage(MSG_KEY, "static"),
              "37:9: " + getCheckMessage(MSG_KEY, "static"),
          };
          verifyWithInlineConfigParser(
                  getNonCompilablePath(
                          "InputClassMemberImpliedModifierNoViolationRecords.java"),
                  expected);
      }
  
      @Test
      public void testIllegalState() {
          final DetailAstImpl init = new DetailAstImpl();
          init.setType(TokenTypes.STATIC_INIT);
          final DetailAstImpl objBlock = new DetailAstImpl();
          objBlock.setType(TokenTypes.OBJBLOCK);
          objBlock.addChild(init);
          final DetailAstImpl interfaceAst = new DetailAstImpl();
          interfaceAst.setType(TokenTypes.CLASS_DEF);
          interfaceAst.addChild(objBlock);
          final ClassMemberImpliedModifierCheck check =
              new ClassMemberImpliedModifierCheck();
          try {
              check.visitToken(init);
              assertWithMessage("IllegalStateException is expected").fail();
          }
          catch (IllegalStateException ex) {
              assertWithMessage("Error message is unexpected")
                  .that(ex.getMessage())
                  .isEqualTo(init.toString());
          }
      }
  
  }
  