code: ///////////////////////////////////////////////////////////////////////////
  //                   __                _      _   ________               //
  //                  / /   ____  ____ _(_)____/ | / / ____/               //
  //                 / /   / __ \/ __ `/ / ___/  |/ / / __                 //
  //                / /___/ /_/ / /_/ / / /__/ /|  / /_/ /                 //
  //               /_____/\____/\__, /_/\___/_/ |_/\____/                  //
  //                           /____/                                      //
  //                                                                       //
  //               The Next Generation Logic Library                       //
  //                                                                       //
  ///////////////////////////////////////////////////////////////////////////
  //                                                                       //
  //  Copyright 2015-20xx Christoph Zengler                                //
  //                                                                       //
  //  Licensed under the Apache License, Version 2.0 (the "License");      //
  //  you may not use this file except in compliance with the License.     //
  //  You may obtain a copy of the License at                              //
  //                                                                       //
  //  http://www.apache.org/licenses/LICENSE-2.0                           //
  //                                                                       //
  //  Unless required by applicable law or agreed to in writing, software  //
  //  distributed under the License is distributed on an "AS IS" BASIS,    //
  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or      //
  //  implied.  See the License for the specific language governing        //
  //  permissions and limitations under the License.                       //
  //                                                                       //
  ///////////////////////////////////////////////////////////////////////////
  
  package org.logicng;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.mockito.Mockito.anyString;
  import static org.mockito.Mockito.mockStatic;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.MockedStatic;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  /**
   * Unit tests for {@link LogicNGVersion}.
   * @version 2.1.0
   * @since 2.0.0
   */
  @ExtendWith(MockitoExtension.class)
  public class LogicNGVersionTest {
  
      @Test
      public void testMajor() {
          try (final MockedStatic<LogicNGVersion> versionMock = mockStatic(LogicNGVersion.class)) {
              versionMock.when(LogicNGVersion::major).thenCallRealMethod();
              versionMock.when(() -> LogicNGVersion.major(anyString())).thenCallRealMethod();
  
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.0");
              assertThat(LogicNGVersion.major()).isEqualTo(2);
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.0-SNAPSHOT");
              assertThat(LogicNGVersion.major()).isEqualTo(2);
              versionMock.when(LogicNGVersion::version).thenReturn("2.1.3");
              assertThat(LogicNGVersion.major()).isEqualTo(2);
              versionMock.when(LogicNGVersion::version).thenReturn("42.7.19");
              assertThat(LogicNGVersion.major()).isEqualTo(42);
              versionMock.when(LogicNGVersion::version).thenReturn("0.0.0");
              assertThat(LogicNGVersion.major()).isEqualTo(0);
              versionMock.when(LogicNGVersion::version).thenReturn("A.0.1");
              assertThat(LogicNGVersion.major()).isEqualTo(-1);
          }
      }
  
      @Test
      public void testMinor() {
          try (final MockedStatic<LogicNGVersion> versionMock = mockStatic(LogicNGVersion.class)) {
              versionMock.when(LogicNGVersion::minor).thenCallRealMethod();
              versionMock.when(() -> LogicNGVersion.minor(anyString())).thenCallRealMethod();
  
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.0");
              assertThat(LogicNGVersion.minor()).isEqualTo(0);
              versionMock.when(LogicNGVersion::version).thenReturn("2.3.0-SNAPSHOT");
              assertThat(LogicNGVersion.minor()).isEqualTo(3);
              versionMock.when(LogicNGVersion::version).thenReturn("2.1.3");
              assertThat(LogicNGVersion.minor()).isEqualTo(1);
              versionMock.when(LogicNGVersion::version).thenReturn("42.7.19");
              assertThat(LogicNGVersion.minor()).isEqualTo(7);
              versionMock.when(LogicNGVersion::version).thenReturn("0.123.0");
              assertThat(LogicNGVersion.minor()).isEqualTo(123);
              versionMock.when(LogicNGVersion::version).thenReturn("2.A.1");
              assertThat(LogicNGVersion.minor()).isEqualTo(-1);
          }
      }
  
      @Test
      public void testPatch() {
          try (final MockedStatic<LogicNGVersion> versionMock = mockStatic(LogicNGVersion.class)) {
              versionMock.when(LogicNGVersion::patch).thenCallRealMethod();
              versionMock.when(() -> LogicNGVersion.patch(anyString())).thenCallRealMethod();
  
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.3");
              assertThat(LogicNGVersion.patch()).isEqualTo(3);
              versionMock.when(LogicNGVersion::version).thenReturn("2.3.3-SNAPSHOT");
              assertThat(LogicNGVersion.patch()).isEqualTo(3);
              versionMock.when(LogicNGVersion::version).thenReturn("2.1.0");
              assertThat(LogicNGVersion.patch()).isEqualTo(0);
              versionMock.when(LogicNGVersion::version).thenReturn("42.7.19");
              assertThat(LogicNGVersion.patch()).isEqualTo(19);
              versionMock.when(LogicNGVersion::version).thenReturn("0.123.22");
              assertThat(LogicNGVersion.patch()).isEqualTo(22);
              versionMock.when(LogicNGVersion::version).thenReturn("2.2.A");
              assertThat(LogicNGVersion.patch()).isEqualTo(-1);
          }
      }
  
      @Test
      public void testSnapshot() {
          try (final MockedStatic<LogicNGVersion> versionMock = mockStatic(LogicNGVersion.class)) {
              versionMock.when(LogicNGVersion::snapshot).thenCallRealMethod();
              versionMock.when(() -> LogicNGVersion.snapshot(anyString())).thenCallRealMethod();
  
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.3");
              assertThat(LogicNGVersion.snapshot()).isFalse();
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.3-SNAPSHOT");
              assertThat(LogicNGVersion.snapshot()).isTrue();
              versionMock.when(LogicNGVersion::version).thenReturn("2.0.3-HUGO");
              assertThat(LogicNGVersion.snapshot()).isFalse();
          }
      }
  }
  