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#include "Cancellation.h"
#include "Context.h"
#include "Threading.h"
#include "llvm/Support/Error.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <atomic>
#include <memory>
#include <thread>
namespace clang {
namespace clangd {
namespace {
TEST(CancellationTest, CancellationTest) {
TaskHandle TH = Task::createHandle();
WithContext ContextWithCancellation(setCurrentTask(TH));
EXPECT_FALSE(isCancelled());
TH->cancel();
EXPECT_TRUE(isCancelled());
}
TEST(CancellationTest, TaskTestHandleDiesContextLives) {
llvm::Optional<WithContext> ContextWithCancellation;
{
TaskHandle TH = Task::createHandle();
ContextWithCancellation.emplace(setCurrentTask(TH));
EXPECT_FALSE(isCancelled());
TH->cancel();
EXPECT_TRUE(isCancelled());
}
EXPECT_TRUE(isCancelled());
}
TEST(CancellationTest, TaskContextDiesHandleLives) {
TaskHandle TH = Task::createHandle();
{
WithContext ContextWithCancellation(setCurrentTask(TH));
EXPECT_FALSE(isCancelled());
TH->cancel();
EXPECT_TRUE(isCancelled());
}
// Still should be able to cancel without any problems.
TH->cancel();
}
TEST(CancellationTest, CancellationToken) {
TaskHandle TH = Task::createHandle();
WithContext ContextWithCancellation(setCurrentTask(TH));
const auto &CT = getCurrentTask();
EXPECT_FALSE(CT.isCancelled());
TH->cancel();
EXPECT_TRUE(CT.isCancelled());
}
TEST(CancellationTest, AsynCancellationTest) {
std::atomic<bool> HasCancelled(false);
Notification Cancelled;
auto TaskToBeCancelled = [&](ConstTaskHandle CT) {
WithContext ContextGuard(setCurrentTask(std::move(CT)));
Cancelled.wait();
HasCancelled = isCancelled();
};
TaskHandle TH = Task::createHandle();
std::thread AsyncTask(TaskToBeCancelled, TH);
TH->cancel();
Cancelled.notify();
AsyncTask.join();
EXPECT_TRUE(HasCancelled);
}
} // namespace
} // namespace clangd
} // namespace clang
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