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#include <locale>

#include "gtest/gtest.h"

// NOTE:  This file contains main() for all tests, and therefore 
//   should be included only once for each test executable.  Usually test
//   executables consist of a single source file, but if this isn't the case
//   you may need to take precautions or define your own main().

GTEST_API_ int main(int argc, char **argv) {
    testing::InitGoogleTest(&argc, argv);

    // Set the locale if requested for the tests,
    //  from an envirtonment variable, or test argument
    const char* envLocale = std::getenv("TEST_SET_LOCALE"); // for instance "de_DE.utf8"
    std::string localeStr = envLocale ? envLocale : "";
    const std::string prefix{"--set-locale="};
    for (int i = 0; i < argc; i++)
    {
        if (std::string(argv[i]).rfind(prefix) == 0)
            localeStr = std::string(argv[i]).substr(prefix.size());
    }
    if (!localeStr.empty())
    {
        try
        {
            std::locale::global(std::locale(localeStr));
        }
        catch(const std::runtime_error& e)
        {
            std::cerr << "Cannot set locale " << localeStr
                      << " . Probably not installed \n" << e.what() << '\n';
            return 1;
        }
    }
    return RUN_ALL_TESTS();
}