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Added a test for static_variant visitor call depth

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This commit is contained in:
Peter Conrad 2018-10-09 16:17:34 +02:00
parent 70dbcc11e3
commit 72a8168b2b
1 changed files with 38 additions and 0 deletions
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38
tests/stacktrace_test.cpp
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@ -1,9 +1,15 @@
#include <boost/test/unit_test.hpp>
#include <boost/algorithm/string.hpp>
#include <signal.h>
#include <fc/stacktrace.hpp>
#include <fc/static_variant.hpp>
#include <fc/thread/thread.hpp>
#include <iostream>
BOOST_AUTO_TEST_SUITE(fc_stacktrace)
BOOST_AUTO_TEST_CASE(stacktrace_test)
@ -40,6 +46,38 @@ BOOST_AUTO_TEST_CASE(threaded_stacktrace_test)
#endif
}
#if BOOST_VERSION / 100000 >= 1 && ((BOOST_VERSION / 100) % 1000) >= 65
class _svdt_visitor
{
public:
typedef std::string result_type;
std::string operator()( int64_t i )const
{
std::stringstream ss;
fc::print_stacktrace(ss);
return ss.str();
}
template<typename T>
std::string operator()( T i )const { return "Unexpected!"; }
};
BOOST_AUTO_TEST_CASE(static_variant_depth_test)
{
int64_t i = 1;
fc::static_variant<uint8_t,uint16_t,uint32_t,uint64_t,int8_t,int16_t,int32_t,int64_t> test(i);
std::string stacktrace = test.visit( _svdt_visitor() );
//std::cerr << stacktrace << "\n";
std::vector<std::string> lines;
boost::split( lines, stacktrace, boost::is_any_of("\n") );
int count = 0;
for( const auto& line : lines )
if( line.find("_svdt_visitor") != std::string::npos ) count++;
BOOST_CHECK_LT( 3, count ); // test.visit(), static_variant::visit, function object, visitor
BOOST_CHECK_GT( 8, count ); // some is implementation-dependent
}
#endif
/* this test causes a segfault on purpose to test the event handler
BOOST_AUTO_TEST_CASE(cause_segfault)
{