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.metrics;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  import static com.puppycrawl.tools.checkstyle.checks.metrics.JavaNCSSCheck.MSG_CLASS;
  import static com.puppycrawl.tools.checkstyle.checks.metrics.JavaNCSSCheck.MSG_FILE;
  import static com.puppycrawl.tools.checkstyle.checks.metrics.JavaNCSSCheck.MSG_METHOD;
  import static com.puppycrawl.tools.checkstyle.checks.metrics.JavaNCSSCheck.MSG_RECORD;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
  import com.puppycrawl.tools.checkstyle.api.TokenTypes;
  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
  
  /**
   * Test case for the JavaNCSS-Check.
   *
   */
  // -@cs[AbbreviationAsWordInName] Test should be named as its main class.
  public class JavaNCSSCheckTest extends AbstractModuleTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/puppycrawl/tools/checkstyle/checks/metrics/javancss";
      }
  
      @Test
      public void test() throws Exception {
  
          final String[] expected = {
              "12:1: " + getCheckMessage(MSG_FILE, 39, 2),
              "19:1: " + getCheckMessage(MSG_CLASS, 22, 1),
              "24:3: " + getCheckMessage(MSG_METHOD, 2, 0),
              "31:3: " + getCheckMessage(MSG_METHOD, 4, 0),
              "40:3: " + getCheckMessage(MSG_METHOD, 12, 0),
              "52:7: " + getCheckMessage(MSG_METHOD, 2, 0),
              "59:3: " + getCheckMessage(MSG_CLASS, 2, 1),
              "66:1: " + getCheckMessage(MSG_CLASS, 10, 1),
              "71:3: " + getCheckMessage(MSG_METHOD, 8, 0),
              "90:1: " + getCheckMessage(MSG_CLASS, 4, 1),
              "91:3: " + getCheckMessage(MSG_METHOD, 1, 0),
              "92:3: " + getCheckMessage(MSG_METHOD, 1, 0),
              "93:3: " + getCheckMessage(MSG_METHOD, 1, 0),
          };
  
          verifyWithInlineConfigParser(
                  getPath("InputJavaNCSS.java"), expected);
      }
  
      @Test
      public void testEqualToMax() throws Exception {
  
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
  
          verifyWithInlineConfigParser(
                  getPath("InputJavaNCSS2.java"), expected);
      }
  
      @Test
      public void testDefaultConfiguration() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
          verifyWithInlineConfigParser(
                  getPath("InputJavaNCSS3.java"), expected);
      }
  
      @Test
      public void testRecordsAndCompactCtors() throws Exception {
  
          final String[] expected = {
              "12:1: " + getCheckMessage(MSG_FILE, 89, 2),
              "16:1: " + getCheckMessage(MSG_CLASS, 87, 3),
              "18:3: " + getCheckMessage(MSG_CLASS, 7, 3),
              "36:3: " + getCheckMessage(MSG_RECORD, 6, 4),
              "45:3: " + getCheckMessage(MSG_RECORD, 15, 4),
              "56:5: " + getCheckMessage(MSG_METHOD, 8, 7),
              "75:3: " + getCheckMessage(MSG_RECORD, 6, 4),
              "109:3: " + getCheckMessage(MSG_RECORD, 8, 4),
              "130:3: " + getCheckMessage(MSG_CLASS, 11, 3),
              "151:3: " + getCheckMessage(MSG_RECORD, 12, 4),
              "152:5: " + getCheckMessage(MSG_METHOD, 11, 7),
              "166:3: " + getCheckMessage(MSG_CLASS, 12, 3),
              "167:5: " + getCheckMessage(MSG_METHOD, 11, 7),
          };
  
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputJavaNCSSRecordsAndCompactCtors.java"),
                  expected);
      }
  
      @Test
      public void testForMutation() throws Exception {
          final String[] expected = {
              "13:1: " + getCheckMessage(MSG_CLASS, 84, 80),
              "16:5: " + getCheckMessage(MSG_CLASS, 83, 80),
          };
          verifyWithInlineConfigParser(
                  getPath("InputJavaNCSSResolveMutation.java"),
                  expected);
      }
  
      @Test
      public void testRecordMax() throws Exception {
          final String[] expected = {
              "14:1: " + getCheckMessage(MSG_CLASS, 152, 80),
              "15:5: " + getCheckMessage(MSG_RECORD, 151, 150),
          };
  
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputJavaNCSSRecordsMax.java"),
                  expected);
      }
  
      @Test
      public void testGetAcceptableTokens() {
          final JavaNCSSCheck javaNcssCheckObj = new JavaNCSSCheck();
          final int[] actual = javaNcssCheckObj.getAcceptableTokens();
          final int[] expected = {
              TokenTypes.CLASS_DEF,
              TokenTypes.INTERFACE_DEF,
              TokenTypes.METHOD_DEF,
              TokenTypes.CTOR_DEF,
              TokenTypes.INSTANCE_INIT,
              TokenTypes.STATIC_INIT,
              TokenTypes.PACKAGE_DEF,
              TokenTypes.IMPORT,
              TokenTypes.VARIABLE_DEF,
              TokenTypes.CTOR_CALL,
              TokenTypes.SUPER_CTOR_CALL,
              TokenTypes.LITERAL_IF,
              TokenTypes.LITERAL_ELSE,
              TokenTypes.LITERAL_WHILE,
              TokenTypes.LITERAL_DO,
              TokenTypes.LITERAL_FOR,
              TokenTypes.LITERAL_SWITCH,
              TokenTypes.LITERAL_BREAK,
              TokenTypes.LITERAL_CONTINUE,
              TokenTypes.LITERAL_RETURN,
              TokenTypes.LITERAL_THROW,
              TokenTypes.LITERAL_SYNCHRONIZED,
              TokenTypes.LITERAL_CATCH,
              TokenTypes.LITERAL_FINALLY,
              TokenTypes.EXPR,
              TokenTypes.LABELED_STAT,
              TokenTypes.LITERAL_CASE,
              TokenTypes.LITERAL_DEFAULT,
              TokenTypes.RECORD_DEF,
              TokenTypes.COMPACT_CTOR_DEF,
          };
          assertWithMessage("Acceptable tokens should not be null")
              .that(actual)
              .isNotNull();
          assertWithMessage("Invalid acceptable tokens")
              .that(actual)
              .isEqualTo(expected);
      }
  
      @Test
      public void testGetRequiredTokens() {
          final JavaNCSSCheck javaNcssCheckObj = new JavaNCSSCheck();
          final int[] actual = javaNcssCheckObj.getRequiredTokens();
          final int[] expected = {
              TokenTypes.CLASS_DEF,
              TokenTypes.INTERFACE_DEF,
              TokenTypes.METHOD_DEF,
              TokenTypes.CTOR_DEF,
              TokenTypes.INSTANCE_INIT,
              TokenTypes.STATIC_INIT,
              TokenTypes.PACKAGE_DEF,
              TokenTypes.IMPORT,
              TokenTypes.VARIABLE_DEF,
              TokenTypes.CTOR_CALL,
              TokenTypes.SUPER_CTOR_CALL,
              TokenTypes.LITERAL_IF,
              TokenTypes.LITERAL_ELSE,
              TokenTypes.LITERAL_WHILE,
              TokenTypes.LITERAL_DO,
              TokenTypes.LITERAL_FOR,
              TokenTypes.LITERAL_SWITCH,
              TokenTypes.LITERAL_BREAK,
              TokenTypes.LITERAL_CONTINUE,
              TokenTypes.LITERAL_RETURN,
              TokenTypes.LITERAL_THROW,
              TokenTypes.LITERAL_SYNCHRONIZED,
              TokenTypes.LITERAL_CATCH,
              TokenTypes.LITERAL_FINALLY,
              TokenTypes.EXPR,
              TokenTypes.LABELED_STAT,
              TokenTypes.LITERAL_CASE,
              TokenTypes.LITERAL_DEFAULT,
              TokenTypes.RECORD_DEF,
              TokenTypes.COMPACT_CTOR_DEF,
          };
          assertWithMessage("Required tokens should not be null")
              .that(actual)
              .isNotNull();
          assertWithMessage("Invalid required tokens")
              .that(actual)
              .isEqualTo(expected);
      }
  
  }
  