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#include "backtrace.h"
#include <util/generic/array_ref.h>
#include <library/cpp/testing/unittest/registar.h>
#include <util/stream/output.h>
using PFunc = int (*)(void**, size_t);
int Dbg1(void** buf, size_t len) {
volatile int ret = (int)BackTrace(buf, len);
return ret;
}
int Dbg2(void** buf, size_t len) {
volatile int ret = (int)BackTrace(buf, len);
return ret;
}
void FormatBackTraceReplacement(IOutputStream* out, void* const*, size_t) {
*out << "WorksLikeACharm" << Endl;
}
void SomeMethod() {
TStringStream out;
FormatBackTrace(&out);
#if defined(_musl_)
// musl dladdr broken for us now
return;
#endif
UNIT_ASSERT(out.Empty() || out.Str().find("SomeMethod") != TString::npos);
}
class TBackTraceTest: public TTestBase {
UNIT_TEST_SUITE(TBackTraceTest);
UNIT_TEST(TestBackTrace)
UNIT_TEST(TestBackTraceView)
UNIT_TEST(TestPrintBackTrace)
UNIT_TEST(TestSetFormatBackTraceFn)
UNIT_TEST_SUITE_END();
void TestPrintBackTrace() {
SomeMethod();
}
void TestSetFormatBackTraceFn() {
TFormatBackTraceFn prevFn = SetFormatBackTraceFn(FormatBackTraceReplacement);
TStringStream out;
FormatBackTrace(&out);
SetFormatBackTraceFn(prevFn);
UNIT_ASSERT(out.Str().Contains("WorksLikeACharm"));
TestPrintBackTrace();
}
void TestBackTrace() {
// PrintBackTrace();
void* buf1[100];
size_t ret1;
void* buf2[100];
size_t ret2;
volatile PFunc func = &Dbg1;
ret1 = (*func)(buf1, 100);
func = &Dbg2;
ret2 = (*func)(buf2, 100);
UNIT_ASSERT_EQUAL(ret1, ret2);
}
void TestBackTraceView() {
try {
throw TWithBackTrace<yexception>();
} catch (const yexception& e) {
const TBackTrace bt = *e.BackTrace();
const TBackTraceView btView = bt;
UNIT_ASSERT_VALUES_EQUAL(btView.size(), bt.size());
}
}
};
UNIT_TEST_SUITE_REGISTRATION(TBackTraceTest);
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