1/*
2 * Copyright 2015-present Facebook, Inc.
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17#include <folly/futures/Future.h>
18#include <folly/portability/GTest.h>
19
20using namespace folly;
21
22TEST(Poll, ready) {
23 Promise<int> p;
24 auto f = p.getFuture();
25 p.setValue(42);
26 EXPECT_EQ(42, f.poll().value().value());
27}
28
29TEST(Poll, notReady) {
30 Promise<int> p;
31 auto f = p.getFuture();
32 EXPECT_FALSE(f.poll().hasValue());
33}
34
35TEST(Poll, exception) {
36 Promise<Unit> p;
37 auto f = p.getFuture();
38 p.setWith([] { throw std::runtime_error("Runtime"); });
39 EXPECT_TRUE(f.poll().value().hasException());
40}
41