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time: add runtime sanity check

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std::chrono::system_clock.time_since_epoch and time_t(0) are not guaranteed
to use the Unix epoch timestamp, but in practice they almost certainly will.
Any differing behavior will be assumed to be an error, unless certain
platforms prove to consistently deviate, at which point we'll cope with it
by adding offsets.

Do a quick runtime check to verify that
time_t(0) == std::chrono::system_clock's epoch time == unix epoch.

Co-authored-by: Anthony Towns <aj@erisian.com.au>
This commit is contained in:
Cory Fields
2017-01-16 15:01:37 -05:00
committed by fanquake
parent 36be9b821a
commit 3c2e16be22
4 changed files with 52 additions and 0 deletions
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2
src/test/sanity_tests.cpp
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@@ -5,6 +5,7 @@
#include <compat/sanity.h>
#include <key.h>
#include <test/util/setup_common.h>
#include <util/time.h>
#include <boost/test/unit_test.hpp>
@@ -15,6 +16,7 @@ BOOST_AUTO_TEST_CASE(basic_sanity)
BOOST_CHECK_MESSAGE(glibc_sanity_test() == true, "libc sanity test");
BOOST_CHECK_MESSAGE(glibcxx_sanity_test() == true, "stdlib sanity test");
BOOST_CHECK_MESSAGE(ECC_InitSanityCheck() == true, "secp256k1 sanity test");
BOOST_CHECK_MESSAGE(ChronoSanityCheck() == true, "chrono epoch test");
}
BOOST_AUTO_TEST_SUITE_END()