UnwrapTest.cpp File Reference

#include <folly/futures/Future.h>
#include <folly/portability/GTest.h>

Go to the source code of this file.

Functions
	TEST (Unwrap, simpleScenario)
	TEST (Unwrap, chainCommands)
	TEST (Unwrap, futureNotReady)

Function Documentation

TEST	(	Unwrap	,
		simpleScenario
	)

Definition at line 24 of file UnwrapTest.cpp.

References EXPECT_EQ, folly::makeFuture(), folly::gen::move, folly::gen::unwrap, and folly::value().

                             {
  Future<int> encapsulated_future = makeFuture(5484);
  Future<Future<int>> future = makeFuture(std::move(encapsulated_future));
  EXPECT_EQ(5484, std::move(future).unwrap().value());
}

TEST	(	Unwrap	,
		chainCommands
	)

Definition at line 31 of file UnwrapTest.cpp.

References EXPECT_EQ, i, folly::makeFuture(), and folly::gen::move.

                            {
  Future<Future<int>> future = makeFuture(makeFuture(5484));
  auto unwrapped = std::move(future).unwrap().then([](int i) { return i; });
  EXPECT_EQ(5484, unwrapped.value());
}

TEST	(	Unwrap	,
		futureNotReady
	)

Definition at line 40 of file UnwrapTest.cpp.

References ASSERT_FALSE, ASSERT_TRUE, EXPECT_EQ, folly::Promise< T >::getFuture(), folly::futures::detail::FutureBase< T >::isReady(), folly::makeFuture(), folly::gen::move, folly::Promise< T >::setValue(), and folly::futures::detail::FutureBase< T >::value().

                             {
  Promise<Future<int>> p;
  Future<Future<int>> future = p.getFuture();
  Future<int> unwrapped = std::move(future).unwrap();
  // Sanity - should not be ready before the promise is fulfilled.
  ASSERT_FALSE(unwrapped.isReady());
  // Fulfill the promise and make sure the unwrapped future is now ready.
  p.setValue(makeFuture(5484));
  ASSERT_TRUE(unwrapped.isReady());
  EXPECT_EQ(5484, unwrapped.value());
}