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.rule462horizontalwhitespace;
  
  import java.util.Map;
  
  import org.junit.jupiter.api.Test;
  
  import com.google.checkstyle.test.base.AbstractGoogleModuleTestSupport;
  import com.puppycrawl.tools.checkstyle.api.Configuration;
  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
  
  public class GenericWhitespaceTest extends AbstractGoogleModuleTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/google/checkstyle/test/chapter4formatting/rule462horizontalwhitespace";
      }
  
      @Test
      public void testWhitespaceAroundGenerics() throws Exception {
          final String msgPreceded = "ws.preceded";
          final String msgFollowed = "ws.followed";
          final Configuration checkConfig = getModuleConfig("GenericWhitespace");
          final Map<String, String> messages = checkConfig.getMessages();
  
          final String[] expected = {
              "12:17: " + getCheckMessage(messages, msgFollowed, "<"),
              "12:17: " + getCheckMessage(messages, msgPreceded, "<"),
              "12:37: " + getCheckMessage(messages, msgFollowed, "<"),
              "12:37: " + getCheckMessage(messages, msgPreceded, "<"),
              "12:48: " + getCheckMessage(messages, msgFollowed, ">"),
              "12:48: " + getCheckMessage(messages, msgPreceded, ">"),
              "12:50: " + getCheckMessage(messages, msgPreceded, ">"),
              "14:33: " + getCheckMessage(messages, msgFollowed, "<"),
              "14:33: " + getCheckMessage(messages, msgPreceded, "<"),
              "14:46: " + getCheckMessage(messages, msgPreceded, ">"),
              "15:33: " + getCheckMessage(messages, msgFollowed, "<"),
              "15:33: " + getCheckMessage(messages, msgPreceded, "<"),
              "15:46: " + getCheckMessage(messages, msgPreceded, ">"),
              "20:39: " + getCheckMessage(messages, msgFollowed, "<"),
              "20:39: " + getCheckMessage(messages, msgPreceded, "<"),
              "20:62: " + getCheckMessage(messages, msgPreceded, ">"),
          };
  
          final String filePath = getPath("InputWhitespaceAroundGenerics.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void testGenericWhitespace() throws Exception {
          final String msgPreceded = "ws.preceded";
          final String msgFollowed = "ws.followed";
          final String msgNotPreceded = "ws.notPreceded";
          final String msgIllegalFollow = "ws.illegalFollow";
          final Configuration checkConfig = getModuleConfig("GenericWhitespace");
          final Map<String, String> messages = checkConfig.getMessages();
  
          final String[] expected = {
              "16:14: " + getCheckMessage(messages, msgFollowed, "<"),
              "16:14: " + getCheckMessage(messages, msgPreceded, "<"),
              "16:24: " + getCheckMessage(messages, msgPreceded, ">"),
              "16:44: " + getCheckMessage(messages, msgFollowed, "<"),
              "16:44: " + getCheckMessage(messages, msgPreceded, "<"),
              "16:54: " + getCheckMessage(messages, msgPreceded, ">"),
              "17:14: " + getCheckMessage(messages, msgFollowed, "<"),
              "17:14: " + getCheckMessage(messages, msgPreceded, "<"),
              "17:21: " + getCheckMessage(messages, msgFollowed, "<"),
              "17:21: " + getCheckMessage(messages, msgPreceded, "<"),
              "17:31: " + getCheckMessage(messages, msgFollowed, ">"),
              "17:31: " + getCheckMessage(messages, msgPreceded, ">"),
              "17:33: " + getCheckMessage(messages, msgPreceded, ">"),
              "17:53: " + getCheckMessage(messages, msgFollowed, "<"),
              "17:53: " + getCheckMessage(messages, msgPreceded, "<"),
              "17:60: " + getCheckMessage(messages, msgFollowed, "<"),
              "17:60: " + getCheckMessage(messages, msgPreceded, "<"),
              "17:70: " + getCheckMessage(messages, msgFollowed, ">"),
              "17:70: " + getCheckMessage(messages, msgPreceded, ">"),
              "17:72: " + getCheckMessage(messages, msgPreceded, ">"),
              "30:18: " + getCheckMessage(messages, msgNotPreceded, "<"),
              "30:20: " + getCheckMessage(messages, msgIllegalFollow, ">"),
              "42:22: " + getCheckMessage(messages, msgPreceded, "<"),
              "42:29: " + getCheckMessage(messages, msgFollowed, ">"),
              "60:59: " + getCheckMessage(messages, msgNotPreceded, "&"),
              "63:59: " + getCheckMessage(messages, msgFollowed, ">"),
          };
  
          final String filePath = getPath("InputGenericWhitespace.java");
  
          final Integer[] warnList = getLinesWithWarn(filePath);
          verify(checkConfig, filePath, expected, warnList);
      }
  
      @Test
      public void genericEndsTheLine() throws Exception {
          final Configuration checkConfig = getModuleConfig("GenericWhitespace");
          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
          verify(checkConfig, getPath("InputGenericWhitespaceEndsTheLine.java"),
                  expected);
      }
  
  }
  