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.sizes;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  import static com.puppycrawl.tools.checkstyle.checks.sizes.MethodLengthCheck.MSG_KEY;
  
  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;
  
  public class MethodLengthCheckTest extends AbstractModuleTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/puppycrawl/tools/checkstyle/checks/sizes/methodlength";
      }
  
      @Test
      public void testGetRequiredTokens() {
          final MethodLengthCheck checkObj = new MethodLengthCheck();
          assertWithMessage("MethodLengthCheck#getRequiredTokens should return empty array "
                  + "by default")
              .that(checkObj.getRequiredTokens())
              .isEqualTo(CommonUtil.EMPTY_INT_ARRAY);
      }
  
      @Test
      public void testGetAcceptableTokens() {
          final MethodLengthCheck methodLengthCheckObj =
              new MethodLengthCheck();
          final int[] actual = methodLengthCheckObj.getAcceptableTokens();
          final int[] expected = {
              TokenTypes.METHOD_DEF,
              TokenTypes.CTOR_DEF,
              TokenTypes.COMPACT_CTOR_DEF,
          };
  
          assertWithMessage("Default acceptable tokens are invalid")
              .that(actual)
              .isEqualTo(expected);
      }
  
      @Test
      public void testIt() throws Exception {
          final String[] expected = {
              "76:5: " + getCheckMessage(MSG_KEY, 20, 19, "longMethod"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputMethodLengthSimple.java"), expected);
      }
  
      @Test
      public void testCountEmptyIsFalse() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
          verifyWithInlineConfigParser(
                  getPath("InputMethodLengthCountEmptyIsFalse.java"), expected);
      }
  
      @Test
      public void testWithComments() throws Exception {
          final String[] expected = {
              "34:5: " + getCheckMessage(MSG_KEY, 8, 7, "visit"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputMethodLengthComments.java"), expected);
      }
  
      @Test
      public void testCountEmpty() throws Exception {
          final int max = 2;
          final String[] expected = {
              "24:5: " + getCheckMessage(MSG_KEY, 3, max, "AA"),
              "41:5: " + getCheckMessage(MSG_KEY, 3, max, "threeLines"),
              "45:5: " + getCheckMessage(MSG_KEY, 3, max, "threeLinesAndComments"),
              "53:5: " + getCheckMessage(MSG_KEY, 3, max, "threeLinesWrap"),
              "63:5: " + getCheckMessage(MSG_KEY, 10, max, "m2"),
          };
          verifyWithInlineConfigParser(
                  getPath("InputMethodLengthCountEmptySmallSize.java"), expected);
      }
  
      @Test
      public void testAbstract() throws Exception {
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
          verifyWithInlineConfigParser(
                  getPath("InputMethodLengthModifier.java"), expected);
      }
  
      @Test
      public void testTextBlocks() throws Exception {
          final int max = 2;
  
          final String[] expected = {
              "14:5: " + getCheckMessage(MSG_KEY, 21, max, "longEmptyTextBlock"),
              "43:5: " + getCheckMessage(MSG_KEY, 10, max, "textBlock2"),
              "57:5: " + getCheckMessage(MSG_KEY, 8, max, "textBlockWithIndent"),
              "66:5: " + getCheckMessage(MSG_KEY, 12, max, "textBlockNoIndent"),
          };
  
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputMethodLengthTextBlocksCountEmpty.java"),
                  expected);
      }
  
      @Test
      public void testRecordsAndCompactCtors() throws Exception {
  
          final int max = 2;
  
          final String[] expected = {
              "25:9: " + getCheckMessage(MSG_KEY, 6, max, "MyTestRecord2"),
              "34:9: " + getCheckMessage(MSG_KEY, 5, max, "foo"),
              "42:9: " + getCheckMessage(MSG_KEY, 7, max, "MyTestRecord4"),
              "63:9: " + getCheckMessage(MSG_KEY, 15, max, "m"),
              "66:17: " + getCheckMessage(MSG_KEY, 8, max, "R76"),
          };
  
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputMethodLengthRecordsAndCompactCtors.java"),
                  expected);
      }
  
      @Test
      public void testRecordsAndCompactCtorsCountEmpty() throws Exception {
          final int max = 2;
  
          final String[] expected = {
              "25:9: " + getCheckMessage(MSG_KEY, 3, max, "MyTestRecord2"),
              "32:9: " + getCheckMessage(MSG_KEY, 3, max, "foo"),
              "38:9: " + getCheckMessage(MSG_KEY, 3, max, "MyTestRecord4"),
              "55:9: " + getCheckMessage(MSG_KEY, 13, max, "m"),
              "58:17: " + getCheckMessage(MSG_KEY, 8, max, "R76"),
          };
  
          verifyWithInlineConfigParser(
                  getNonCompilablePath("InputMethodLengthCompactCtorsCountEmpty.java"),
                  expected);
      }
  
  }
  