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 #define LOG_TAG "VtsHalAudioControlTest"
18
19 #include <stdio.h>
20 #include <string.h>
21
22 #include <hidl/HidlTransportSupport.h>
23 #include <hwbinder/ProcessState.h>
24 #include <log/log.h>
25 #include <utils/Errors.h>
26 #include <utils/StrongPointer.h>
27
28 #include <android/hardware/automotive/audiocontrol/1.0/IAudioControl.h>
29 #include <android/hardware/automotive/audiocontrol/1.0/types.h>
30 #include <android/log.h>
31 #include <gtest/gtest.h>
32 #include <hidl/GtestPrinter.h>
33 #include <hidl/ServiceManagement.h>
34
35 using namespace ::android::hardware::automotive::audiocontrol::V1_0;
36 using ::android::hardware::Return;
37 using ::android::hardware::Void;
38 using ::android::hardware::hidl_enum_range;
39 using ::android::hardware::hidl_handle;
40 using ::android::hardware::hidl_string;
41 using ::android::hardware::hidl_vec;
42 using ::android::sp;
43
44 // The main test class for the automotive AudioControl HAL
45 class CarAudioControlHidlTest : public ::testing::TestWithParam<std::string> {
46 public:
SetUp()47 virtual void SetUp() override {
48 // Make sure we can connect to the driver
49 pAudioControl = IAudioControl::getService(GetParam());
50 ASSERT_NE(pAudioControl.get(), nullptr);
51 }
52
TearDown()53 virtual void TearDown() override {}
54
55 protected:
56 sp<IAudioControl> pAudioControl; // Every test needs access to the service
57 };
58
59 //
60 // Tests start here...
61 //
62
63 /*
64 * Fader exercise test. Note that only a subjective observer could determine if the
65 * fader actually works. The only thing we can do is exercise the HAL and if the HAL crashes,
66 * we _might_ get a test failure if that breaks the connection to the driver.
67 */
TEST_P(CarAudioControlHidlTest,FaderExercise)68 TEST_P(CarAudioControlHidlTest, FaderExercise) {
69 ALOGI("Fader exercise test (silent)");
70
71 // Set the fader all the way to the back
72 pAudioControl->setFadeTowardFront(-1.0f);
73
74 // Set the fader all the way to the front
75 pAudioControl->setFadeTowardFront(1.0f);
76
77 // Set the fader part way toward the back
78 pAudioControl->setFadeTowardFront(-0.333f);
79
80 // Set the fader to a out of bounds value (driver should clamp)
81 pAudioControl->setFadeTowardFront(99999.9f);
82
83 // Set the fader back to the middle
84 pAudioControl->setFadeTowardFront(0.0f);
85 }
86
87 /*
88 * Balance exercise test.
89 */
TEST_P(CarAudioControlHidlTest,BalanceExercise)90 TEST_P(CarAudioControlHidlTest, BalanceExercise) {
91 ALOGI("Balance exercise test (silent)");
92
93 // Set the balance all the way to the left
94 pAudioControl->setBalanceTowardRight(-1.0f);
95
96 // Set the balance all the way to the right
97 pAudioControl->setBalanceTowardRight(1.0f);
98
99 // Set the balance part way toward the left
100 pAudioControl->setBalanceTowardRight(-0.333f);
101
102 // Set the balance to a out of bounds value (driver should clamp)
103 pAudioControl->setBalanceTowardRight(99999.9f);
104
105 // Set the balance back to the middle
106 pAudioControl->setBalanceTowardRight(0.0f);
107 }
108
109 /*
110 * Context mapping test.
111 */
TEST_P(CarAudioControlHidlTest,ContextMapping)112 TEST_P(CarAudioControlHidlTest, ContextMapping) {
113 ALOGI("Context mapping test");
114
115 int bus = -1;
116
117 // For each defined context, query the driver for the BUS on which it should be delivered
118 for (const auto& ctxt : hidl_enum_range<ContextNumber>()) {
119 bus = pAudioControl->getBusForContext(ctxt);
120
121 if (ctxt == ContextNumber::INVALID) {
122 // Invalid context should never be mapped to a bus
123 EXPECT_EQ(bus, -1);
124 } else {
125 EXPECT_GE(bus, 0);
126 // TODO: Consider enumerating the devices on the actual audio hal to validate the
127 // bus IDs. This would introduce an dependency on the audio HAL, however. Would that
128 // even work while Android is up and running?
129 }
130 }
131
132 // Try asking about an invalid context one beyond the last defined to see that it gets back a -1
133 int contextRange = std::distance(hidl_enum_range<ContextNumber>().begin(),
134 hidl_enum_range<ContextNumber>().end());
135 bus = pAudioControl->getBusForContext((ContextNumber)contextRange);
136 EXPECT_EQ(bus, -1);
137
138 // Try asking about an invalid context WAY out of range to see that it gets back a -1
139 bus = pAudioControl->getBusForContext((ContextNumber)~0);
140 EXPECT_EQ(bus, -1);
141 }
142
143 INSTANTIATE_TEST_SUITE_P(
144 PerInstance, CarAudioControlHidlTest,
145 testing::ValuesIn(android::hardware::getAllHalInstanceNames(IAudioControl::descriptor)),
146 android::hardware::PrintInstanceNameToString);