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 /* SPDX-License-Identifier: BSD-2-Clause */
 
 /**
  * @file
  *
  * @ingroup RtemsOptionValOptions
  */
 
 /*
  * Copyright (C) 2020 embedded brains GmbH & Co. KG
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
 /*
  * This file is part of the RTEMS quality process and was automatically
  * generated.  If you find something that needs to be fixed or
  * worded better please post a report or patch to an RTEMS mailing list
  * or raise a bug report:
  *
  * https://www.rtems.org/bugs.html
  *
  * For information on updating and regenerating please refer to the How-To
  * section in the Software Requirements Engineering chapter of the
  * RTEMS Software Engineering manual.  The manual is provided as a part of
  * a release.  For development sources please refer to the online
  * documentation at:
  *
  * https://docs.rtems.org
  */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <rtems.h>
 
 #include <rtems/test.h>
 
 /**
  * @defgroup RtemsOptionValOptions spec:/rtems/option/val/options
  *
  * @ingroup TestsuitesValidationNoClock0
  *
  * @brief Tests the option constants of the Classic API.
  *
  * This test case performs the following actions:
  *
  * - Validate the non-default option constants.
  *
  *   - Check that RTEMS_EVENT_ANY is a power of two.
  *
  *   - Check that RTEMS_NO_WAIT is a power of two.
  *
  * - Validate the default option constants.
  *
  *   - Check that RTEMS_DEFAULT_OPTIONS is equal to zero.
  *
  *   - Check that RTEMS_EVENT_ALL is equal to zero.
  *
  *   - Check that RTEMS_WAIT is equal to zero.
  *
  * - Calculate the bitwise or of all non-default option constants.
  *
  *   - Check that the count of set bits in the calculated value is equal to the
  *     count of non-default option constants.  Since each non-default option
  *     constant is a power of two, this proves that each constant has a unique
  *     value.
  *
  * - Check the value of RTEMS_DEFAULT_OPTIONS.
  *
  *   - Check RTEMS_DEFAULT_OPTIONS equals RTEMS_WAIT.
  *
  * @{
  */
 
 static bool IsPowerOfTwo( rtems_option option )
 {
   return option != 0 && ( option & ( option - 1 ) ) == 0;
 }
 
 static int PopCount( rtems_option options )
 {
   int count;
 
   count = 0;
 
   while ( options != 0 ) {
     ++count;
     options &= options - 1;
   }
 
   return count;
 }
 
 /**
  * @brief Validate the non-default option constants.
  */
 static void RtemsOptionValOptions_Action_0( void )
 {
   /* No action */
 
   /*
    * Check that RTEMS_EVENT_ANY is a power of two.
    */
   T_step_true( 0, IsPowerOfTwo( RTEMS_EVENT_ANY ) );
 
   /*
    * Check that RTEMS_NO_WAIT is a power of two.
    */
   T_step_true( 1, IsPowerOfTwo( RTEMS_NO_WAIT ) );
 }
 
 /**
  * @brief Validate the default option constants.
  */
 static void RtemsOptionValOptions_Action_1( void )
 {
   /* No action */
 
   /*
    * Check that RTEMS_DEFAULT_OPTIONS is equal to zero.
    */
   T_step_eq_u32( 2, RTEMS_DEFAULT_OPTIONS, 0 );
 
   /*
    * Check that RTEMS_EVENT_ALL is equal to zero.
    */
   T_step_eq_u32( 3, RTEMS_EVENT_ALL, 0 );
 
   /*
    * Check that RTEMS_WAIT is equal to zero.
    */
   T_step_eq_u32( 4, RTEMS_WAIT, 0 );
 }
 
 /**
  * @brief Calculate the bitwise or of all non-default option constants.
  */
 static void RtemsOptionValOptions_Action_2( void )
 {
   rtems_option options;
 
   options = 0;
   options |= RTEMS_EVENT_ANY;
   options |= RTEMS_NO_WAIT;
 
   /*
    * Check that the count of set bits in the calculated value is equal to the
    * count of non-default option constants.  Since each non-default option
    * constant is a power of two, this proves that each constant has a unique
    * value.
    */
   T_step_eq_int( 5, PopCount( options ), 2 );
 }
 
 /**
  * @brief Check the value of RTEMS_DEFAULT_OPTIONS.
  */
 static void RtemsOptionValOptions_Action_3( void )
 {
   /* No action */
 
   /*
    * Check RTEMS_DEFAULT_OPTIONS equals RTEMS_WAIT.
    */
   T_step_eq_int( 6, RTEMS_DEFAULT_OPTIONS, RTEMS_WAIT );
 }
 
 /**
  * @fn void T_case_body_RtemsOptionValOptions( void )
  */
 T_TEST_CASE( RtemsOptionValOptions )
 {
   T_plan( 7 );
 
   RtemsOptionValOptions_Action_0();
   RtemsOptionValOptions_Action_1();
   RtemsOptionValOptions_Action_2();
   RtemsOptionValOptions_Action_3();
 }
 
 /** @} */

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