1 /*
2 * Copyright 2019 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 #define LOG_NDEBUG 0
20
21 #include <inttypes.h>
22
23 #include <gmock/gmock.h>
24 #include <gtest/gtest.h>
25
26 #include <log/log.h>
27
28 #include "AsyncCallRecorder.h"
29 #include "Scheduler/DispSyncSource.h"
30 #include "mock/MockDispSync.h"
31
32 namespace android {
33 namespace {
34
35 using namespace std::chrono_literals;
36 using testing::Return;
37
38 class DispSyncSourceTest : public testing::Test, private VSyncSource::Callback {
39 protected:
40 DispSyncSourceTest();
41 ~DispSyncSourceTest() override;
42
43 void createDispSync();
44 void createDispSyncSource();
45
46 void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
47
48 std::unique_ptr<mock::DispSync> mDispSync;
49 std::unique_ptr<DispSyncSource> mDispSyncSource;
50
51 AsyncCallRecorder<void (*)(nsecs_t)> mVSyncEventCallRecorder;
52
53 static constexpr std::chrono::nanoseconds mPhaseOffset = 6ms;
54 static constexpr int mIterations = 100;
55 };
56
DispSyncSourceTest()57 DispSyncSourceTest::DispSyncSourceTest() {
58 const ::testing::TestInfo* const test_info =
59 ::testing::UnitTest::GetInstance()->current_test_info();
60 ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
61 }
62
~DispSyncSourceTest()63 DispSyncSourceTest::~DispSyncSourceTest() {
64 const ::testing::TestInfo* const test_info =
65 ::testing::UnitTest::GetInstance()->current_test_info();
66 ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
67 }
68
onVSyncEvent(nsecs_t when,nsecs_t)69 void DispSyncSourceTest::onVSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) {
70 ALOGD("onVSyncEvent: %" PRId64, when);
71
72 mVSyncEventCallRecorder.recordCall(when);
73 }
74
createDispSync()75 void DispSyncSourceTest::createDispSync() {
76 mDispSync = std::make_unique<mock::DispSync>();
77 }
78
createDispSyncSource()79 void DispSyncSourceTest::createDispSyncSource() {
80 createDispSync();
81 mDispSyncSource = std::make_unique<DispSyncSource>(mDispSync.get(), mPhaseOffset.count(), true,
82 "DispSyncSourceTest");
83 mDispSyncSource->setCallback(this);
84 }
85
86 /* ------------------------------------------------------------------------
87 * Test cases
88 */
89
TEST_F(DispSyncSourceTest,createDispSync)90 TEST_F(DispSyncSourceTest, createDispSync) {
91 createDispSync();
92 EXPECT_TRUE(mDispSync);
93 }
94
TEST_F(DispSyncSourceTest,createDispSyncSource)95 TEST_F(DispSyncSourceTest, createDispSyncSource) {
96 createDispSyncSource();
97 EXPECT_TRUE(mDispSyncSource);
98 }
99
TEST_F(DispSyncSourceTest,noCallbackAfterInit)100 TEST_F(DispSyncSourceTest, noCallbackAfterInit) {
101 createDispSyncSource();
102 EXPECT_TRUE(mDispSyncSource);
103
104 // DispSyncSource starts with Vsync disabled
105 mDispSync->triggerCallback();
106 EXPECT_FALSE(mVSyncEventCallRecorder.waitForUnexpectedCall().has_value());
107 }
108
TEST_F(DispSyncSourceTest,waitForCallbacks)109 TEST_F(DispSyncSourceTest, waitForCallbacks) {
110 createDispSyncSource();
111 EXPECT_TRUE(mDispSyncSource);
112
113 mDispSyncSource->setVSyncEnabled(true);
114 EXPECT_EQ(mDispSync->getCallbackPhase(), mPhaseOffset.count());
115
116 for (int i = 0; i < mIterations; i++) {
117 mDispSync->triggerCallback();
118 EXPECT_TRUE(mVSyncEventCallRecorder.waitForCall().has_value());
119 }
120 }
121
TEST_F(DispSyncSourceTest,waitForCallbacksWithPhaseChange)122 TEST_F(DispSyncSourceTest, waitForCallbacksWithPhaseChange) {
123 createDispSyncSource();
124 EXPECT_TRUE(mDispSyncSource);
125
126 mDispSyncSource->setVSyncEnabled(true);
127 EXPECT_EQ(mDispSync->getCallbackPhase(), mPhaseOffset.count());
128
129 for (int i = 0; i < mIterations; i++) {
130 mDispSync->triggerCallback();
131 EXPECT_TRUE(mVSyncEventCallRecorder.waitForCall().has_value());
132 }
133
134 EXPECT_CALL(*mDispSync, getPeriod()).Times(1).WillOnce(Return(16666666));
135 mDispSyncSource->setPhaseOffset((mPhaseOffset / 2).count());
136
137 EXPECT_EQ(mDispSync->getCallbackPhase(), (mPhaseOffset / 2).count());
138
139 for (int i = 0; i < mIterations; i++) {
140 mDispSync->triggerCallback();
141 EXPECT_TRUE(mVSyncEventCallRecorder.waitForCall().has_value());
142 }
143 }
144
145 } // namespace
146 } // namespace android
147