2 * Copyright 2015 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 <gtest/gtest.h>
18 #include <folly/futures/InlineExecutor.h>
19 #include <folly/futures/ManualExecutor.h>
20 #include <folly/futures/QueuedImmediateExecutor.h>
21 #include <folly/futures/Future.h>
22 #include <folly/Baton.h>
24 using namespace folly;
25 using namespace std::chrono;
26 using namespace testing;
28 TEST(ManualExecutor, runIsStable) {
31 auto f1 = [&]() { count++; };
32 auto f2 = [&]() { x.add(f1); x.add(f1); };
37 TEST(ManualExecutor, scheduleDur) {
40 milliseconds dur {10};
41 x.schedule([&]{ count++; }, dur);
51 TEST(ManualExecutor, clockStartsAt0) {
53 EXPECT_EQ(x.now(), x.now().min());
56 TEST(ManualExecutor, scheduleAbs) {
59 x.scheduleAt([&]{ count++; }, x.now() + milliseconds(10));
61 x.advance(milliseconds(10));
65 TEST(ManualExecutor, advanceTo) {
68 x.scheduleAt([&]{ count++; }, steady_clock::now());
70 x.advanceTo(steady_clock::now());
74 TEST(ManualExecutor, advanceBack) {
77 x.advance(microseconds(5));
78 x.schedule([&]{ count++; }, microseconds(6));
80 x.advanceTo(x.now() - microseconds(1));
84 TEST(ManualExecutor, advanceNeg) {
87 x.advance(microseconds(5));
88 x.schedule([&]{ count++; }, microseconds(6));
90 x.advance(microseconds(-1));
94 TEST(ManualExecutor, waitForDoesNotDeadlock) {
95 ManualExecutor east, west;
99 .then([](Try<void>){ return makeFuture(); })
110 TEST(Executor, InlineExecutor) {
115 EXPECT_EQ(counter, 0);
118 EXPECT_EQ(counter, 1);
121 EXPECT_EQ(counter, 2);
124 TEST(Executor, QueuedImmediateExecutor) {
125 QueuedImmediateExecutor x;
129 EXPECT_EQ(1, counter);
132 EXPECT_EQ(0, counter);
135 EXPECT_EQ(2, counter);
138 TEST(Executor, Runnable) {
142 std::function<void()> fn;
143 void operator()() { fn(); }
146 f.fn = [&]{ counter++; };
148 EXPECT_EQ(counter, 1);
151 TEST(Executor, RunnablePtr) {
154 std::function<void()> fn;
155 void operator()() { fn(); }
158 auto fnp = std::make_shared<Runnable>();
159 fnp->fn = [&]{ counter++; };
161 EXPECT_EQ(counter, 1);
164 TEST(Executor, ThrowableThen) {
166 auto f = Future<void>().via(&x).then([](){
167 throw std::runtime_error("Faildog");
169 EXPECT_THROW(f.value(), std::exception);
172 class CrappyExecutor : public Executor {
174 void add(Func f) override {
175 throw std::runtime_error("bad");
179 TEST(Executor, CrappyExecutor) {
182 auto f = Future<void>().via(&x).activate().then([](){
188 // via() should throw