2 * Copyright 2014 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/experimental/wangle/rx/Observer.h>
18 #include <folly/experimental/wangle/rx/Subject.h>
19 #include <gtest/gtest.h>
21 using namespace folly::wangle;
23 TEST(RxTest, SubscribeDuringCallback) {
24 // A subscriber who was subscribed in the course of a callback should get
25 // subsequent updates but not the current update.
29 subject.subscribe(Observer<int>::create([&] (int x) {
31 subject.subscribe(Observer<int>::create([&] (int y) {
36 subject.onNext(0xDEADBEEF);
37 EXPECT_EQ(2, outerCount);
38 EXPECT_EQ(1, innerCount);