JdkVersionCompareTest.java

/*
 * Copyright (c) 2020, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.internal.util;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.junit.jupiter.api.Test;

public class JdkVersionCompareTest {

  @Test
  public void testCompareJava8WithJava9() {
    JdkVersion java8 = JdkVersion.parseVersion("1.8.0_141");
    JdkVersion java9 = JdkVersion.parseVersion("9");

    assertEquals(1, java9.compareTo(java8));
    assertEquals(-1, java8.compareTo(java9));
  }

  @Test
  public void testCompareJava8Updates() {
    JdkVersion java8u141 = JdkVersion.parseVersion("1.8.0_141");
    JdkVersion java8u152 = JdkVersion.parseVersion("1.8.0_152");

    assertEquals(1, java8u152.compareTo(java8u141));
    assertEquals(-1, java8u141.compareTo(java8u152));
  }

  @Test
  public void testCompareJava9Versions() {
    JdkVersion java900 = JdkVersion.parseVersion("9.0.0");
    JdkVersion java901 = JdkVersion.parseVersion("9.0.1");

    assertEquals(1, java901.compareTo(java900));
    assertEquals(-1, java900.compareTo(java901));
  }
}