TEST(SemiFuture, SimpleValue) {
Promise<int> p;
auto sf = p.getSemiFuture();
p.setValue(3);
auto v = std::move(sf).value();
ASSERT_EQ(v, 3);
}
TEST(SemiFuture, SimpleResult) {
EventBase e2;
Promise<int> p;
auto sf = p.getSemiFuture();
p.setValue(3);
auto v = std::move(sf).result();
ASSERT_EQ(v.value(), 3);
}
TEST(SemiFuture, SimpleTimedGetTryViaFromSemiFuture) {
TimedDrivableExecutor e2;
Promise<folly::Unit> p;
auto sf = p.getSemiFuture();
EXPECT_THROW(
std::move(sf).via(&e2).getTryVia(&e2, std::chrono::milliseconds(100)),
TimedOut);
}
TEST(SemiFuture, SimpleTimedWait) {
Promise<folly::Unit> p;
auto sf = p.getSemiFuture();
sf.wait(std::chrono::milliseconds(100));
EXPECT_FALSE(sf.isReady());
p.setValue();
EXPECT_TRUE(sf.isReady());
}
TEST(SemiFuture, MakeFutureFromSemiFutureLValue) {
folly::EventBase e;
Promise<int> p;
std::atomic<int> result{0};
auto f = p.getSemiFuture();
auto future = std::move(f).via(&e).then([&](int value) {
result = value;
return value;
});
e.loop();
EXPECT_EQ(result, 0);
EXPECT_FALSE(future.isReady());
p.setValue(42);
e.loop();
EXPECT_TRUE(future.isReady());
ASSERT_EQ(future.value(), 42);
ASSERT_EQ(result, 42);
}
TEST(SemiFuture, SimpleResultThrow) {
EventBase e2;
Promise<folly::Unit> p;
auto sf = p.getSemiFuture();
EXPECT_THROW(std::move(sf).result(), FutureNotReady);
}
TEST(SemiFuture, SimpleValueThrow) {
Promise<folly::Unit> p;
auto sf = p.getSemiFuture();
EXPECT_THROW(std::move(sf).value(), FutureNotReady);
}
TEST(SemiFuture, SimpleTimedGetTry) {
Promise<folly::Unit> p;
auto sf = p.getSemiFuture();
EXPECT_THROW(std::move(sf).getTry(std::chrono::milliseconds(100)), TimedOut);
}
TEST(SemiFuture, MakeSemiFutureFromNotReadyFuture) {
Promise<int> p;
auto f = p.getSemiFuture();
EXPECT_THROW(f.value(), eggs_t);
}
TEST(SemiFuture, MakeSemiFutureFromReadyFuture) {
Promise<int> p;
auto f = p.getSemiFuture();
EXPECT_FALSE(f.isReady());
p.setValue(42);
EXPECT_TRUE(f.isReady());
}