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 <log/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 protected:
VtsStructuralTestHalPowerTest()34 VtsStructuralTestHalPowerTest() {
35 int rc =
36 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) module_->init(module_);
43 }
44
~VtsStructuralTestHalPowerTest()45 virtual ~VtsStructuralTestHalPowerTest() {}
46
SetUp()47 virtual void SetUp() {
48 // define operations to execute before running each testcase.
49 ASSERT_TRUE(module_->get_number_of_platform_modes)
50 << "get_number_of_platform_modes is NULL";
51 ASSERT_TRUE(module_->get_voter_list) << "get_voter_list is NULL";
52 ASSERT_TRUE(module_->get_number_of_platform_modes)
53 << "get_number_of_platform_modes is NULL";
54 num_modes_ = module_->get_number_of_platform_modes(module_);
55 ASSERT_GT(num_modes_, 0) << "num_modes_ should be at least 1";
56 }
57
TearDown()58 virtual void TearDown() {
59 // define operations to execute after running each testcase.
60 }
61
62 struct power_module *module_;
63
64 int num_modes_;
65 };
66
67 // get_number_of_platform_modes should always return the same value
68 // irrespective of how many times invoked.
TEST_F(VtsStructuralTestHalPowerTest,get_number_of_platform_modes_returns_same_value)69 TEST_F(VtsStructuralTestHalPowerTest,
70 get_number_of_platform_modes_returns_same_value) {
71 // NOTE: We can repeat this for few more times in a loop if the test can
72 // run longer.
73 sleep(1);
74 int rc2 = module_->get_number_of_platform_modes(module_);
75 EXPECT_EQ(num_modes_, rc2)
76 << "get_number_of_platform_modes returned unequal values";
77 }
78
79 // Check if residency duration and count decreases between successive
80 // invocations.
TEST_F(VtsStructuralTestHalPowerTest,check_if_the_values_decrease)81 TEST_F(VtsStructuralTestHalPowerTest, check_if_the_values_decrease) {
82 power_state_platform_sleep_state_t *list1 =
83 (power_state_platform_sleep_state_t *)calloc(
84 num_modes_, sizeof(power_state_platform_sleep_state_t));
85 ASSERT_TRUE(list1) << "power_state_platform_sleep_state_t* alloc failed";
86
87 power_state_platform_sleep_state_t *list2 =
88 (power_state_platform_sleep_state_t *)calloc(
89 num_modes_, sizeof(power_state_platform_sleep_state_t));
90 ASSERT_TRUE(list2) << "power_state_platform_sleep_state_t* alloc failed";
91
92 size_t *voter_list = (size_t *)calloc(num_modes_, sizeof(*voter_list));
93 ASSERT_TRUE(voter_list) << "voter_list* alloc failed";
94
95 module_->get_voter_list(module_, voter_list);
96
97 for (int i = 0; i < num_modes_; i++) {
98 list1[i].voters = (power_state_voter_t *)calloc(
99 voter_list[i], sizeof(power_state_voter_t));
100 ASSERT_TRUE(list1[i].voters) << "voter_t allocation failed";
101
102 list2[i].voters = (power_state_voter_t *)calloc(
103 voter_list[i], sizeof(power_state_voter_t));
104
105 ASSERT_TRUE(list2[i].voters) << "voter_t allocation failed";
106 }
107
108 ASSERT_EQ(0, module_->get_platform_low_power_stats(module_, list1))
109 << "get_platform_low_power_stats failed";
110 sleep(2);
111 ASSERT_EQ(0, module_->get_platform_low_power_stats(module_, list2))
112 << "get_platform_low_power_stats failed";
113
114 for (int i = 0; i < num_modes_; i++) {
115 EXPECT_LE(list1[i].residency_in_msec_since_boot,
116 list2[i].residency_in_msec_since_boot)
117 << "residency_in_msec_since_boot decreased";
118 EXPECT_LE(list1[i].total_transitions, list2[i].total_transitions)
119 << "total_transitions decreased";
120
121 for (unsigned int j = 0; j < list1[i].number_of_voters; j++) {
122 EXPECT_LE(list1[i].voters[j].total_time_in_msec_voted_for_since_boot,
123 list2[i].voters[j].total_time_in_msec_voted_for_since_boot)
124 << "total_time_in_msec_voted_for_since_boot decreased";
125 EXPECT_LE(list1[i].voters[j].total_number_of_times_voted_since_boot,
126 list2[i].voters[j].total_number_of_times_voted_since_boot)
127 << "total_number_of_times_voted_since_boot decreased";
128 }
129 }
130 for (int i = 0; i < num_modes_; i++) {
131 free(list1[i].voters);
132 free(list2[i].voters);
133 }
134 free(list1);
135 free(list2);
136 free(voter_list);
137 }
138
139 // Check if get_platform_low_power_stats succeeds.
TEST_F(VtsStructuralTestHalPowerTest,check_if_get_platform_low_power_stats_returns_success)140 TEST_F(VtsStructuralTestHalPowerTest,
141 check_if_get_platform_low_power_stats_returns_success) {
142 power_state_platform_sleep_state_t *list1 =
143 (power_state_platform_sleep_state_t *)calloc(
144 num_modes_, sizeof(power_state_platform_sleep_state_t));
145 ASSERT_TRUE(list1) << "power_state_platform_sleep_state_t* alloc failed";
146
147 size_t *voter_list = (size_t *)calloc(num_modes_, sizeof(*voter_list));
148 ASSERT_TRUE(voter_list) << "voter_t allocation failed";
149
150 module_->get_voter_list(module_, voter_list);
151 for (int i = 0; i < num_modes_; i++) {
152 list1[i].voters = (power_state_voter_t *)calloc(
153 voter_list[i], sizeof(power_state_voter_t));
154 ASSERT_TRUE(list1[i].voters) << "voter_t allocation failed";
155 }
156 EXPECT_EQ(0, module_->get_platform_low_power_stats(module_, list1))
157 << "get_platform_low_power_stats failed";
158 for (int i = 0; i < num_modes_; i++) {
159 free(list1[i].voters);
160 }
161 free(list1);
162 free(voter_list);
163 }
164 } // namespace
165