/*
    * Copyright 2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.driver.unix.aix;
   
   import static org.hamcrest.MatcherAssert.assertThat;
   import static org.hamcrest.Matchers.greaterThan;
   import static org.hamcrest.Matchers.greaterThanOrEqualTo;
  import static org.hamcrest.Matchers.lessThan;
  import static org.hamcrest.Matchers.lessThanOrEqualTo;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.condition.EnabledOnOs;
  import org.junit.jupiter.api.condition.OS;
  
  @EnabledOnOs(OS.AIX)
  class UptimeAndBootTimeTest {
      @Test
      void testQueryBootTime() {
          long msSinceEpoch = Who.queryBootTime();
          // Possible to return 0 if there is no year information in the command
          assertThat("Boot time should be after the epoch", msSinceEpoch, greaterThanOrEqualTo(0L));
          assertThat("Boot time should be before now", msSinceEpoch, lessThan(System.currentTimeMillis()));
  
          long msSinceBoot = Uptime.queryUpTime();
          assertThat("Up time should be positive", msSinceBoot, greaterThan(0L));
          assertThat("Boot time plus uptime should be just before now", msSinceBoot + msSinceEpoch,
                  lessThanOrEqualTo(System.currentTimeMillis()));
      }
  }