catch2_my_main.cpp

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/*
 * Author: Sven Gothel <sgothel@jausoft.com>
 * Copyright (c) 2020 Gothel Software e.K.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 *************************************************************************
 *
 * Distributed under the Boost Software License, Version 1.0.
 *  (See accompanying file LICENSE_1_0.txt or copy at
 *        https://www.boost.org/LICENSE_1_0.txt)
 *
 * SPDX-License-Identifier: BSL-1.0
 */
 
#ifndef CATCH2_MY_MAIN_H
#define CATCH2_MY_MAIN_H
 
#define CATCH_AMALGAMATED_CUSTOM_MAIN 1
#include <catch2/catch_amalgamated.hpp>
 
/** The main argv[0] test executable path */
std::string executable_path;
 
/** Run w/o command-line args, i.e. default CI unit test. */
bool catch_auto_run;
 
/** Run w/ command-line arg '--perf_analysis'. */
bool catch_perf_analysis;
 
static char * extra_args[] = { (char*)"--colour-mode", (char*)"none" };
static int extra_args_c = sizeof(extra_args) / sizeof(const char *);
 
int main( int argc, char* argv[] )
{
  Catch::Session session; // There must be exactly one instance
 
  if( 1 <= argc ) {
      executable_path = std::string(argv[0]);
  } else {
      executable_path = "undef";
  }
 
  catch_auto_run = ( 1 >= argc );
 
  int argc_2=0;
  char* argv_2[argc+extra_args_c];
 
  for(int i=0; i<argc; i++) {
      if( 0 == strcmp("--perf_analysis", argv[i]) ) {
          catch_perf_analysis = true;
      } else {
          argv_2[argc_2++] = argv[i];
      }
  }
  for(int i=0; i<extra_args_c; i++) {
      argv_2[argc_2++] = extra_args[i];
  }
  fprintf(stderr, "argc %d -> %d, auto_run %d, perf_analysis %d\n",
          argc, argc_2, catch_auto_run, catch_perf_analysis);
  for(int i=0; i<argc_2; i++) {
      printf("[%d] %s\n", i, argv_2[i]);
  }
 
  // writing to session.configData() here sets defaults
  // this is the preferred way to set them
 
  int returnCode = session.applyCommandLine( argc_2, argv_2 );
 
  if( returnCode != 0 ) { // Indicates a command line error
      return returnCode;
  }
 
  if( catch_auto_run ) {
      const char* my_args[] = { argv[0],
                                "--benchmark-warmup-time", "1",
                                "--benchmark-confidence-interval", "0",
                                "--benchmark-samples", "1",
                                "--benchmark-resamples", "0",
                                "--benchmark-no-analysis"
                              };
      int res = session.applyCommandLine( sizeof(my_args)/sizeof(char*), my_args );
      if( 0 != res ) {
          return res;
      }
      // Catch::Config& config = session.config();
  }
 
  // writing to session.configData() or session.Config() here
  // overrides command line args
  // only do this if you know you need to
 
  int numFailed = session.run();
 
  // numFailed is clamped to 255 as some unices only use the lower 8 bits.
  // This clamping has already been applied, so just return it here
  // You can also do any post run clean-up here
  return numFailed;
}
 
#endif // CATCH2_MY_MAIN_H