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;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.api.AuditEvent;
  import com.puppycrawl.tools.checkstyle.api.SeverityLevel;
  import com.puppycrawl.tools.checkstyle.api.Violation;
  import com.puppycrawl.tools.checkstyle.internal.utils.TestUtil;
  
  public class AuditEventDefaultFormatterTest {
  
      @Test
      public void testFormatFullyQualifiedModuleNameContainsCheckSuffix() {
          final Violation violation = new Violation(1, 1, null, null, null,
                  SeverityLevel.WARNING, null, TestModuleCheck.class, "Mocked violation.");
          final AuditEvent event = new AuditEvent("", "InputMockFile.java", violation);
          final AuditEventFormatter formatter = new AuditEventDefaultFormatter();
  
          final String expected = "[WARN] InputMockFile.java:1:1: Mocked violation. "
                  + "[AuditEventDefaultFormatterTest$TestModule]";
  
          assertWithMessage("Invalid format")
                  .that(formatter.format(event))
                  .isEqualTo(expected);
      }
  
      @Test
      public void testFormatFullyQualifiedModuleNameDoesNotContainCheckSuffix() {
          final Violation violation = new Violation(1, 1, null, null, null,
                  SeverityLevel.WARNING, null, TestModule.class, "Mocked violation.");
          final AuditEvent event = new AuditEvent("", "InputMockFile.java", violation);
          final AuditEventFormatter formatter = new AuditEventDefaultFormatter();
  
          final String expected = "[WARN] InputMockFile.java:1:1: Mocked violation. "
                  + "[AuditEventDefaultFormatterTest$TestModule]";
  
          assertWithMessage("Invalid format")
                  .that(formatter.format(event))
                  .isEqualTo(expected);
      }
  
      @Test
      public void testFormatModuleWithModuleId() {
          final Violation violation = new Violation(1, 1, null, null, null,
                  SeverityLevel.WARNING, "ModuleId", TestModule.class, "Mocked violation.");
          final AuditEvent event = new AuditEvent("", "InputMockFile.java", violation);
          final AuditEventFormatter formatter = new AuditEventDefaultFormatter();
  
          final String expected = "[WARN] InputMockFile.java:1:1: Mocked violation. [ModuleId]";
  
          assertWithMessage("Invalid format")
                  .that(formatter.format(event))
                  .isEqualTo(expected);
      }
  
      @Test
      public void testCalculateBufferLength() throws Exception {
          final Violation violation = new Violation(1, 1,
                  "messages.properties", "key", null, SeverityLevel.ERROR, null,
                  getClass(), null);
          final AuditEvent auditEvent = new AuditEvent(new Object(), "fileName", violation);
          final int result = TestUtil.invokeStaticMethod(AuditEventDefaultFormatter.class,
                  "calculateBufferLength", auditEvent, SeverityLevel.ERROR.ordinal());
  
          assertWithMessage("Buffer length is not expected")
                  .that(result)
                  .isEqualTo(54);
      }
  
      private static final class TestModuleCheck {
  
          // no code
  
      }
  
      private static final class TestModule {
  
          // no code
  
      }
  
  }
  