RC_PARAMS and GoogleTest

[kalaracey]

Hey, thanks for the great library. I was wondering if it's possible to set RC_PARAMS with the GoogleTest integration from within the test. I tried setting the environment variable in my test suite constructor to no avail:

#include <gtest/gtest.h>
#include <cstdlib>
#include <rapidcheck/gtest.h>
#include <vector>

class TestSuite : public ::testing::Test {
  protected:
    TestSuite() {
      putenv("RC_PARAMS=max_success=100000");
    }
};

// ...

RC_GTEST_FIXTURE_PROP(TestSuite, RapidCheck, (std::vector<int> arg)) {
  // ...
  RC_ASSERT(/* ... */);
}

The only output from RapidCheck I see is like

Using configuration: seed=13725330511029654191

FWIW, using putenv from main did work, as in

#include <rapidcheck.h>
#include <vector>
#include <cstdlib>

int main() {
  putenv("RC_PARAMS=max_success=100000");
  rc::check("my property", [](std::vector<int>) { /* ... */ });
  return 0;
}

With that, I see

Using configuration: max_success=100000 seed=3088896386735555752

- my property
OK, passed 100000 tests

Thanks.

[kalaracey]

Updated original post to use RC_GTEST_FIXTURE_PROP rather than RC_GTEST_PROP.

[erasmussen1]

Thanks the great library. I use it with address sanitizer "-fsanitize=address", is works great.

Yes, it would be great to have a macro like below to put in the testfixture (in Setup(), and TearDown() ).

Note: this means you have to remove "const" from rc::detail::configuration()

#define RC_FORCE_MAX_SUCCESS(n)   {   \
        if (int{(n)} > 0) {                                        \
            rc::detail::configuration().testParams.maxSuccess = n; \
        }                                                          \
    }