1 /*
2 * Copyright (C) 2016 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 #include <gtest/gtest.h>
18
19 #include <stdio.h>
20
21 #include <hardware/hardware.h>
22 #include <hardware/power.h>
23 #include <utils/Log.h>
24
25 #include <iostream>
26
27 using namespace std;
28
29 namespace {
30
31 // VTS structural testcase for HAL Power basic functionalities.
32 class VtsStructuralTestHalPowerTest : public ::testing::Test {
33
34 protected:
VtsStructuralTestHalPowerTest()35 VtsStructuralTestHalPowerTest() {
36 int rc = hw_get_module(POWER_HARDWARE_MODULE_ID, (hw_module_t const**)&module_);
37 if (rc || !module_) {
38 cerr << "could not find any power HAL module." << endl;
39 module_ = NULL;
40 return;
41 }
42 if (module_->init)
43 module_->init(module_);
44 }
45
~VtsStructuralTestHalPowerTest()46 virtual ~VtsStructuralTestHalPowerTest() {
47 }
48
SetUp()49 virtual void SetUp() {
50 // define operations to execute before running each testcase.
51 ASSERT_TRUE(module_->get_number_of_platform_modes) <<
52 "get_number_of_platform_modes is NULL";
53 ASSERT_TRUE(module_->get_voter_list) << "get_voter_list is NULL";
54 ASSERT_TRUE(module_->get_number_of_platform_modes) <<
55 "get_number_of_platform_modes is NULL";
56 num_modes_ = module_->get_number_of_platform_modes(module_);
57 ASSERT_GT(num_modes_, 0) << "num_modes_ should be at least 1";
58
59 }
60
TearDown()61 virtual void TearDown() {
62 // define operations to execute after running each testcase.
63 }
64
65 struct power_module* module_;
66
67 int num_modes_;
68 };
69
70 // get_number_of_platform_modes should always return the same value
71 // irrespective of how many times invoked.
TEST_F(VtsStructuralTestHalPowerTest,get_number_of_platform_modes_returns_same_value)72 TEST_F(VtsStructuralTestHalPowerTest,
73 get_number_of_platform_modes_returns_same_value) {
74 // NOTE: We can repeat this for few more times in a loop if the test can
75 // run longer.
76 sleep(1);
77 int rc2 = module_->get_number_of_platform_modes(module_);
78 EXPECT_EQ(num_modes_, rc2) << "get_number_of_platform_modes returned unequal values";
79 }
80
81 // Check if residency duration and count decreases between successive
82 // invocations.
TEST_F(VtsStructuralTestHalPowerTest,check_if_the_values_decrease)83 TEST_F(VtsStructuralTestHalPowerTest, check_if_the_values_decrease) {
84
85 power_state_platform_sleep_state_t *list1 = (power_state_platform_sleep_state_t *)
86 calloc(num_modes_, sizeof(power_state_platform_sleep_state_t));
87 ASSERT_TRUE(list1) << "power_state_platform_sleep_state_t* alloc failed";
88
89 power_state_platform_sleep_state_t *list2 = (power_state_platform_sleep_state_t *)
90 calloc(num_modes_, sizeof(power_state_platform_sleep_state_t));
91 ASSERT_TRUE(list2) << "power_state_platform_sleep_state_t* alloc failed";
92
93 size_t *voter_list = (size_t *) calloc(num_modes_, sizeof(*voter_list));
94 ASSERT_TRUE(voter_list) << "voter_list* alloc failed";
95
96 module_->get_voter_list(module_, voter_list);
97
98 for (int i = 0; i < num_modes_; i++) {
99 list1[i].voters = (power_state_voter_t *) calloc(voter_list[i],
100 sizeof(power_state_voter_t));
101 ASSERT_TRUE(list1[i].voters) << "voter_t allocation failed";
102
103 list2[i].voters = (power_state_voter_t *) calloc(voter_list[i],
104 sizeof(power_state_voter_t));
105
106 ASSERT_TRUE(list2[i].voters) << "voter_t allocation failed";
107 }
108
109 ASSERT_EQ(0, module_->get_platform_low_power_stats(module_, list1)) <<
110 "get_platform_low_power_stats failed";
111 sleep(2);
112 ASSERT_EQ(0, module_->get_platform_low_power_stats(module_, list2)) <<
113 "get_platform_low_power_stats failed";
114
115 for (int i = 0; i < num_modes_; i++) {
116 EXPECT_LE(list1[i].residency_in_msec_since_boot,
117 list2[i].residency_in_msec_since_boot) <<
118 "residency_in_msec_since_boot decreased";
119 EXPECT_LE(list1[i].total_transitions, list2[i].total_transitions) <<
120 "total_transitions decreased";
121
122 for (unsigned int j = 0; j < list1[i].number_of_voters; j++) {
123 EXPECT_LE(list1[i].voters[j].total_time_in_msec_voted_for_since_boot,
124 list2[i].voters[j].total_time_in_msec_voted_for_since_boot) <<
125 "total_time_in_msec_voted_for_since_boot decreased";
126 EXPECT_LE(list1[i].voters[j].total_number_of_times_voted_since_boot,
127 list2[i].voters[j].total_number_of_times_voted_since_boot) <<
128 "total_number_of_times_voted_since_boot decreased";
129 }
130 }
131 for (int i = 0; i < num_modes_; i++) {
132 free(list1[i].voters);
133 free(list2[i].voters);
134 }
135 free(list1);
136 free(list2);
137 free(voter_list);
138 }
139
140 // Check if get_platform_low_power_stats succeeds.
TEST_F(VtsStructuralTestHalPowerTest,check_if_get_platform_low_power_stats_returns_success)141 TEST_F(VtsStructuralTestHalPowerTest,
142 check_if_get_platform_low_power_stats_returns_success) {
143
144 power_state_platform_sleep_state_t *list1 = (power_state_platform_sleep_state_t *)
145 calloc(num_modes_, sizeof(power_state_platform_sleep_state_t));
146 ASSERT_TRUE(list1) << "power_state_platform_sleep_state_t* alloc failed";
147
148 size_t *voter_list = (size_t *)calloc(num_modes_, sizeof(*voter_list));
149 ASSERT_TRUE(voter_list) << "voter_t allocation failed";
150
151 module_->get_voter_list(module_, voter_list);
152 for (int i = 0; i < num_modes_; i++) {
153 list1[i].voters = (power_state_voter_t *)calloc(voter_list[i],
154 sizeof(power_state_voter_t));
155 ASSERT_TRUE(list1[i].voters) << "voter_t allocation failed";
156 }
157 EXPECT_EQ(0, module_->get_platform_low_power_stats(module_, list1)) <<
158 "get_platform_low_power_stats failed";
159 for (int i = 0; i < num_modes_; i++) {
160 free(list1[i].voters);
161 }
162 free(list1);
163 free(voter_list);
164 }
165 } // namespace
166