1 /*
2 * Copyright (C) 2018 The Android Open Source Project
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 #undef LOG_TAG
18 #define LOG_TAG "LibSurfaceFlingerUnittests"
19
20 #include <gmock/gmock.h>
21 #include <gtest/gtest.h>
22
23 #include <log/log.h>
24
25 #include "AsyncCallRecorder.h"
26 #include "EventControlThread.h"
27
28 namespace android {
29 namespace {
30
31 using namespace std::chrono_literals;
32 using testing::_;
33
34 class EventControlThreadTest : public testing::Test {
35 protected:
36 EventControlThreadTest();
37 ~EventControlThreadTest() override;
38
39 void createThread();
40
41 void expectVSyncEnableCallbackCalled(bool enable);
42
43 AsyncCallRecorder<void (*)(bool)> mVSyncSetEnabledCallRecorder;
44
45 std::unique_ptr<EventControlThread> mThread;
46 };
47
EventControlThreadTest()48 EventControlThreadTest::EventControlThreadTest() {
49 const ::testing::TestInfo* const test_info =
50 ::testing::UnitTest::GetInstance()->current_test_info();
51 ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
52 }
53
~EventControlThreadTest()54 EventControlThreadTest::~EventControlThreadTest() {
55 const ::testing::TestInfo* const test_info =
56 ::testing::UnitTest::GetInstance()->current_test_info();
57 ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
58 }
59
createThread()60 void EventControlThreadTest::createThread() {
61 mThread = std::make_unique<android::impl::EventControlThread>(
62 mVSyncSetEnabledCallRecorder.getInvocable());
63 }
64
expectVSyncEnableCallbackCalled(bool expectedEnabled)65 void EventControlThreadTest::expectVSyncEnableCallbackCalled(bool expectedEnabled) {
66 auto args = mVSyncSetEnabledCallRecorder.waitForCall();
67 ASSERT_TRUE(args.has_value());
68 EXPECT_EQ(std::get<0>(args.value()), expectedEnabled);
69 }
70
71 /* ------------------------------------------------------------------------
72 * Test cases
73 */
74
TEST_F(EventControlThreadTest,signalsVSyncDisabledOnStartup)75 TEST_F(EventControlThreadTest, signalsVSyncDisabledOnStartup) {
76 createThread();
77
78 // On thread start, there should be an automatic explicit call to disable
79 // vsyncs
80 expectVSyncEnableCallbackCalled(false);
81 }
82
TEST_F(EventControlThreadTest,signalsVSyncDisabledOnce)83 TEST_F(EventControlThreadTest, signalsVSyncDisabledOnce) {
84 createThread();
85 expectVSyncEnableCallbackCalled(false);
86
87 mThread->setVsyncEnabled(false);
88
89 EXPECT_FALSE(mVSyncSetEnabledCallRecorder.waitForUnexpectedCall().has_value());
90 }
91
TEST_F(EventControlThreadTest,signalsVSyncEnabledThenDisabled)92 TEST_F(EventControlThreadTest, signalsVSyncEnabledThenDisabled) {
93 createThread();
94 expectVSyncEnableCallbackCalled(false);
95
96 mThread->setVsyncEnabled(true);
97
98 expectVSyncEnableCallbackCalled(true);
99
100 mThread->setVsyncEnabled(false);
101
102 expectVSyncEnableCallbackCalled(false);
103 }
104
TEST_F(EventControlThreadTest,signalsVSyncEnabledOnce)105 TEST_F(EventControlThreadTest, signalsVSyncEnabledOnce) {
106 createThread();
107 expectVSyncEnableCallbackCalled(false);
108
109 mThread->setVsyncEnabled(true);
110
111 expectVSyncEnableCallbackCalled(true);
112
113 mThread->setVsyncEnabled(true);
114
115 EXPECT_FALSE(mVSyncSetEnabledCallRecorder.waitForUnexpectedCall().has_value());
116 }
117
118 } // namespace
119 } // namespace android
120