TEST_F(FutureTest, GetReturnsCorrectValue) {
Future<int> f;
pool.Enqueue([&f]() {
int result = f.Wait();
ASSERT_EQ(42, result);
});
pool.Enqueue([&f]() {
f.Callback(42);
});
pool.LoopUntilEmpty();
}
TEST_F(FutureTest, IsFinishedIsSetAfterCallback) {
Future<int> f;
pool.Enqueue([&f]() {
std::this_thread::sleep_for(100ms);
int result = f.Wait();
ASSERT_EQ(42, result);
});
pool.Enqueue([&f]() {
ASSERT_FALSE(f.is_finished());
f.Callback(42);
// let other thread run, but that one will wait 100ms
std::this_thread::sleep_for(10ns);
ASSERT_FALSE(f.is_finished());
// this should be after the the other thread called Get
std::this_thread::sleep_for(200ms);
ASSERT_TRUE(f.is_finished());
});
pool.LoopUntilEmpty();
}