1 // Copyright 2020 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14
15 #include <chrono>
16
17 #include "pw_sync/thread_notification.h"
18 #include "pw_unit_test/framework.h"
19
20 namespace pw::sync {
21 namespace {
22
TEST(ThreadNotification,EmptyInitialState)23 TEST(ThreadNotification, EmptyInitialState) {
24 ThreadNotification notification;
25 EXPECT_FALSE(notification.try_acquire());
26 }
27
28 // TODO: b/235284163 - Add real concurrency tests.
29
TEST(ThreadNotification,Release)30 TEST(ThreadNotification, Release) {
31 ThreadNotification notification;
32 notification.release();
33 notification.release();
34 notification.acquire();
35 // Ensure it fails when empty.
36 EXPECT_FALSE(notification.try_acquire());
37 }
38
39 ThreadNotification empty_initial_notification;
TEST(ThreadNotification,EmptyInitialStateStatic)40 TEST(ThreadNotification, EmptyInitialStateStatic) {
41 EXPECT_FALSE(empty_initial_notification.try_acquire());
42 }
43
44 ThreadNotification raise_notification;
TEST(ThreadNotification,ReleaseStatic)45 TEST(ThreadNotification, ReleaseStatic) {
46 raise_notification.release();
47 raise_notification.release();
48 raise_notification.acquire();
49 // Ensure it fails when empty.
50 EXPECT_FALSE(raise_notification.try_acquire());
51 }
52
53 } // namespace
54 } // namespace pw::sync
55