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#include <library/cpp/coroutine/engine/stack/stack.h>
#include <library/cpp/coroutine/engine/stack/stack_common.h>
#include <library/cpp/coroutine/engine/stack/stack_guards.h>
#include <library/cpp/coroutine/engine/stack/stack_utils.h>
#include <library/cpp/testing/gtest/gtest.h>
using namespace testing;
namespace NCoro::NStack::Tests {
constexpr size_t StackSizeInPages = 4;
template <class TGuard>
class TStackFixture : public Test {
protected: // methods
TStackFixture()
: Guard_(GetGuard<TGuard>())
, StackSize_(StackSizeInPages * PageSize)
{}
void SetUp() override {
ASSERT_TRUE(GetAlignedMemory(StackSizeInPages, RawMemory_, AlignedMemory_));
Stack_ = MakeHolder<NDetails::TStack>(RawMemory_, AlignedMemory_, StackSize_, "test_stack");
Guard_.Protect(AlignedMemory_, StackSize_, false);
}
void TearDown() override {
Guard_.RemoveProtection(AlignedMemory_, StackSize_);
free(Stack_->GetRawMemory());
Stack_->Reset();
EXPECT_EQ(Stack_->GetRawMemory(), nullptr);
}
protected: // data
const TGuard& Guard_;
const size_t StackSize_ = 0;
char* RawMemory_ = nullptr;
char* AlignedMemory_ = nullptr;
THolder<NDetails::TStack> Stack_;
};
typedef Types<TCanaryGuard, TPageGuard> Implementations;
TYPED_TEST_SUITE(TStackFixture, Implementations);
TYPED_TEST(TStackFixture, PointersAndSize) {
EXPECT_EQ(this->Stack_->GetRawMemory(), this->RawMemory_);
EXPECT_EQ(this->Stack_->GetAlignedMemory(), this->AlignedMemory_);
EXPECT_EQ(this->Stack_->GetSize(), this->StackSize_);
}
TYPED_TEST(TStackFixture, WriteStack) {
auto workspace = this->Guard_.GetWorkspace(this->Stack_->GetAlignedMemory(), this->Stack_->GetSize());
for (size_t i = 0; i < workspace.size(); i += 512) {
workspace[i] = 42;
}
EXPECT_TRUE(this->Guard_.CheckOverride(this->Stack_->GetAlignedMemory(), this->Stack_->GetSize()));
}
}
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