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/* Icinga 2 | (c) 2025 Icinga GmbH | GPLv2+ */
#include "utils.hpp"
#include <cstring>
#include <iomanip>
#include <sstream>
#include <boost/test/unit_test.hpp>
tm make_tm(std::string s)
{
int dst = -1;
size_t l = strlen("YYYY-MM-DD HH:MM:SS");
if (s.size() > l) {
std::string zone = s.substr(l);
if (zone == " PST") {
dst = 0;
} else if (zone == " PDT") {
dst = 1;
} else {
// tests should only use PST/PDT (for now)
BOOST_CHECK_MESSAGE(false, "invalid or unknown time time: " << zone);
}
}
std::tm t = {};
std::istringstream stream(s);
stream >> std::get_time(&t, "%Y-%m-%d %H:%M:%S");
t.tm_isdst = dst;
return t;
}
#ifndef _WIN32
const char *GlobalTimezoneFixture::TestTimezoneWithDST = "America/Los_Angeles";
#else /* _WIN32 */
// Tests are using pacific time because Windows only really supports timezones following US DST rules with the TZ
// environment variable. Format is "[Standard TZ][negative UTC offset][DST TZ]".
// https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/tzset?view=msvc-160#remarks
const char *GlobalTimezoneFixture::TestTimezoneWithDST = "PST8PDT";
#endif /* _WIN32 */
GlobalTimezoneFixture::GlobalTimezoneFixture(const char *fixed_tz)
{
tz = getenv("TZ");
#ifdef _WIN32
_putenv_s("TZ", fixed_tz == "" ? "UTC" : fixed_tz);
#else
setenv("TZ", fixed_tz, 1);
#endif
tzset();
}
GlobalTimezoneFixture::~GlobalTimezoneFixture()
{
#ifdef _WIN32
if (tz)
_putenv_s("TZ", tz);
else
_putenv_s("TZ", "");
#else
if (tz)
setenv("TZ", tz, 1);
else
unsetenv("TZ");
#endif
tzset();
}
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