64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
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#include <google/gtest/gtest.h>
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#include "../../../implementations/caching/PeriodicTask.h"
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#include <mutex>
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#include <condition_variable>
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#include <atomic>
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using ::testing::Test;
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using std::mutex;
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using std::unique_lock;
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using std::condition_variable;
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using namespace blockstore::caching;
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class AtomicCounter {
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public:
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AtomicCounter(int count): _mutex(), _cv(), _counter(count) {}
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void decrease() {
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unique_lock<mutex> lock(_mutex);
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--_counter;
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_cv.notify_all();
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}
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void waitForZero() {
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unique_lock<mutex> lock(_mutex);
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_cv.wait(lock, [this] () {return _counter <= 0;});
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}
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private:
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mutex _mutex;
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condition_variable _cv;
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int _counter;
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};
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class PeriodicTaskTest: public Test {
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};
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TEST_F(PeriodicTaskTest, DoesntDeadlockInDestructorWhenDestructedImmediately) {
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PeriodicTask task([](){}, 1);
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}
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TEST_F(PeriodicTaskTest, CallsCallbackAtLeast10Times) {
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AtomicCounter counter(10);
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PeriodicTask task([&counter](){
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counter.decrease();
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}, 0.001);
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counter.waitForZero();
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}
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TEST_F(PeriodicTaskTest, DoesntCallCallbackAfterDestruction) {
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std::atomic<int> callCount(0);
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{
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PeriodicTask task([&callCount](){
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callCount += 1;
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}, 0.001);
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}
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int callCountDirectlyAfterDestruction = callCount;
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boost::this_thread::sleep_for(boost::chrono::seconds(1));
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EXPECT_EQ(callCountDirectlyAfterDestruction, callCount);
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}
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