Running unit tests Boost on different processes

Question

I want to do unit testing in SystemC. The idea is to have multiple test suites with multiple tests in each package. Each of the tests will require a reboot of the SystemC system (for example, by calling sc_simcontext::reset()), but this is actually impossible due to some error, which, apparently, will not be fixed in the near future. So I decided to come up with a workaround.

I found out that if I run each test on a different process, everything works fine. The following code snippet gives an overview of the circuitry that I used to make it work:

void test1() {
  // ...
  sc_start();
}

void test2() {
  // ...
  sc_start();
}

typedef std::function<void()> TestFunction;

void run_test(TestFunction test_function) {
  pid_t pid = fork();
  switch (pid) {
  case -1:
    throw std::runtime_error("Error forking process");
  case 0:
    test_function();
    exit(0);
  default:
    waitpid(pid, nullptr, 0);
    break;
  }
}

int main() {
  run_test(test1);
  run_test(test2);
}

Now I want to implement such a testing scheme using the Boost Unit Test.

Boost Unit Test, , unit_test_main , . Boost Unit Test .

- ?

Answer 1

100% , , . :

:

namespace util {

typedef std::function<void()> TestFunction;

void run_test(TestFunction test_function);

} // namespace util

#define SYSTEMC_TEST_CASE(name)       \
  void name##_impl();                 \
  BOOST_AUTO_TEST_CASE(name) {        \
    util::run_test(name##_impl);      \
  }                                   \
  void name##_impl()

:

namespace util {

void run_test(TestFunction test_function) {
  pid_t pid = fork();
  switch (pid) {
    case -1:
      throw std::runtime_error("Error forking process");
    case 0:
      try { test_function(); }
      catch (const std::exception& e) {
        std::cout << boost::format("Exception caught: %1%") % e.what() << std::endl;
        exit(1);
      }
      catch (...) { exit(1); }
      exit(0);
    default:
      waitpid(pid, nullptr, 0);
      break;
  }
}

} // namespace util

:

BOOST_AUTO_TEST_SUITE(suite)

SYSTEMC_TEST_CASE(test_case1) {
  // ...
}

SYSTEMC_TEST_CASE(test_case2) {
  // ...
}

BOOST_AUTO_TEST_SUITE_END()

main.cpp :

#define BOOST_TEST_MODULE TestModule
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_NO_MAIN
#include <boost/test/unit_test.hpp>

#include <systemc.h>

boost::unit_test::test_suite* init_unit_test_suite(int, char*[]) {
  using namespace ::boost::unit_test;
  assign_op(framework::master_test_suite().p_name.value,
      BOOST_TEST_STRINGIZE(BOOST_TEST_MODULE).trim("\""), 0);
  return 0;
}

int sc_main(int argc, char* argv[]) {
  return boost::unit_test::unit_test_main(&init_unit_test, argc, argv);
}

. SystemC - .

, - XML. , , stderr, .