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#include "context.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/generic/deque.h>
#include <util/generic/yexception.h>
Y_UNIT_TEST_SUITE(TestContext) {
template <class F>
static TContClosure Wrap(F& f) {
struct TW: public ITrampoLine {
inline TW(F* ff) noexcept
: F_(ff)
{
}
void DoRun() override {
(*F_)();
}
F* F_;
char Buf[1000000];
};
static TDeque<TW> w;
auto& tw = w.emplace_back(&f);
return {&tw, TArrayRef(tw.Buf, sizeof(tw.Buf))};
}
Y_UNIT_TEST(TestExceptionSafety) {
TExceptionSafeContext main;
TExceptionSafeContext* volatile nextPtr = nullptr;
bool hasUncaught = true;
auto func = [&]() {
hasUncaught = UncaughtException();
nextPtr->SwitchTo(&main);
};
auto closure = Wrap(func);
TExceptionSafeContext next(closure);
nextPtr = &next;
struct THelper {
inline ~THelper() {
M->SwitchTo(N);
}
TExceptionSafeContext* M;
TExceptionSafeContext* N;
};
bool throwed = false;
try {
THelper helper{&main, &next};
throw 1;
} catch (...) {
throwed = true;
}
UNIT_ASSERT(throwed);
UNIT_ASSERT(!hasUncaught);
}
} // Y_UNIT_TEST_SUITE(TestContext)
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