2 * Copyright 2017-present Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/futures/Future.h>
18 #include <folly/portability/GTest.h>
22 using namespace folly;
27 /* implicit */ Widget(int v) : v_(v) {}
28 Widget(const Widget& other) = default;
29 Widget(Widget&& other) noexcept = default;
30 Widget& operator=(const Widget& /* other */) {
31 throw std::logic_error("unexpected copy assignment");
33 Widget& operator=(Widget&& /* other */) {
34 throw std::logic_error("unexpected move assignment");
36 explicit operator int() && {
42 TEST(ConverstionOperator, DirectInitialization) {
43 auto future = makeFuture<Widget>(23);
44 EXPECT_EQ(future.value().v_, 23);
45 Future<int> secondFuture{std::move(future)};
46 EXPECT_EQ(secondFuture.value(), 23);
49 TEST(ConverstionOperator, StaticCast) {
50 auto future = makeFuture<Widget>(23);
51 EXPECT_EQ(future.value().v_, 23);
52 EXPECT_EQ(static_cast<Future<int>>(std::move(future)).value(), 23);