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.filefilters;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  import static com.puppycrawl.tools.checkstyle.checks.coding.FinalLocalVariableCheck.MSG_KEY;
  
  import java.util.regex.Pattern;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
  import com.puppycrawl.tools.checkstyle.checks.coding.FinalLocalVariableCheck;
  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
  
  public class BeforeExecutionExclusionFileFilterTest extends AbstractModuleTestSupport {
  
      @Override
      protected String getPackageLocation() {
          return "com/puppycrawl/tools/checkstyle/filefilters/beforeexecutionexclusionfilefilter";
      }
  
      @Test
      public void testAccept() {
          final String fileName = "BAD";
          final BeforeExecutionExclusionFileFilter filter =
                  createExclusionBeforeExecutionFileFilter(fileName);
  
          assertWithMessage("Should accept if file does not exist")
                  .that(filter.accept("ATest.java"))
                  .isTrue();
      }
  
      @Test
      public void testAcceptOnNullFile() {
          final String fileName = null;
          final BeforeExecutionExclusionFileFilter filter =
                  createExclusionBeforeExecutionFileFilter(fileName);
  
          assertWithMessage("Should accept if file is null")
                  .that(filter.accept("AnyJava.java"))
                  .isTrue();
      }
  
      @Test
      public void testReject() {
          final String fileName = "Test";
          final BeforeExecutionExclusionFileFilter filter =
                  createExclusionBeforeExecutionFileFilter(fileName);
  
          assertWithMessage("Should reject file, but did not")
                  .that(filter.accept("ATest.java"))
                  .isFalse();
      }
  
      @Test
      public void testFileExclusion() throws Exception {
          final String[] filteredViolations = CommonUtil.EMPTY_STRING_ARRAY;
  
          final String[] unfilteredViolations = {
              "17:13: " + getCheckMessage(FinalLocalVariableCheck.class, MSG_KEY, "i"),
          };
  
          verifyFilterWithInlineConfigParser(
                  getPath("InputBeforeExecutionExclusionFileFilter.java"),
                  unfilteredViolations, filteredViolations
          );
      }
  
      private static BeforeExecutionExclusionFileFilter
              createExclusionBeforeExecutionFileFilter(String fileName) {
          final BeforeExecutionExclusionFileFilter exclusionBeforeExecutionFileFilter =
                  new BeforeExecutionExclusionFileFilter();
          if (fileName != null) {
              exclusionBeforeExecutionFileFilter.setFileNamePattern(Pattern.compile(fileName));
          }
          return exclusionBeforeExecutionFileFilter;
      }
  
  }
  