1 /*
2 * Copyright (C) 2021 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 "src/traced/probes/power/linux_power_sysfs_data_source.h"
18 #include "src/base/test/tmp_dir_tree.h"
19 #include "test/gtest_and_gmock.h"
20
21 namespace perfetto {
22 namespace {
23
TEST(LinuxPowerSysfsDataSourceTest,BatteryCounters)24 TEST(LinuxPowerSysfsDataSourceTest, BatteryCounters) {
25 base::TmpDirTree tmpdir;
26 std::unique_ptr<LinuxPowerSysfsDataSource::BatteryInfo> battery_info_;
27
28 tmpdir.AddDir("BAT0");
29 tmpdir.AddFile("BAT0/type", "Battery\n");
30 tmpdir.AddFile("BAT0/present", "1\n");
31 tmpdir.AddFile("BAT0/capacity", "95\n"); // 95 percent.
32 tmpdir.AddFile("BAT0/charge_now", "3074000\n"); // 3074000 µAh.
33 tmpdir.AddFile("BAT0/current_now", "245000\n"); // 245000 µA.
34 tmpdir.AddFile("BAT0/current_avg", "240000\n"); // 240000 µA.
35
36 battery_info_.reset(
37 new LinuxPowerSysfsDataSource::BatteryInfo(tmpdir.path().c_str()));
38
39 EXPECT_EQ(battery_info_->num_batteries(), 1u);
40 EXPECT_EQ(*battery_info_->GetCapacityPercent(0), 95);
41 EXPECT_EQ(*battery_info_->GetCurrentNowUa(0), 245000);
42 EXPECT_EQ(*battery_info_->GetAverageCurrentUa(0), 240000);
43 EXPECT_EQ(*battery_info_->GetChargeCounterUah(0), 3074000);
44 }
45
TEST(LinuxPowerSysfsDataSourceTest,HidDeviceCounters)46 TEST(LinuxPowerSysfsDataSourceTest, HidDeviceCounters) {
47 base::TmpDirTree tmpdir;
48 std::unique_ptr<LinuxPowerSysfsDataSource::BatteryInfo> battery_info_;
49
50 // Some HID devices (e.g. stylus) can also report battery info.
51 tmpdir.AddDir("hid-0001-battery");
52 tmpdir.AddFile("hid-0001-battery/type", "Battery\n");
53 tmpdir.AddFile("hid-0001-battery/present", "1\n");
54 tmpdir.AddFile("hid-0001-battery/capacity", "88\n"); // 88 percent.
55 // The HID device only reports the battery capacity in percent.
56
57 battery_info_.reset(
58 new LinuxPowerSysfsDataSource::BatteryInfo(tmpdir.path().c_str()));
59
60 EXPECT_EQ(battery_info_->num_batteries(), 1u);
61 EXPECT_EQ(*battery_info_->GetCapacityPercent(0), 88);
62 EXPECT_EQ(battery_info_->GetCurrentNowUa(0), base::nullopt);
63 EXPECT_EQ(battery_info_->GetAverageCurrentUa(0), base::nullopt);
64 EXPECT_EQ(battery_info_->GetChargeCounterUah(0), base::nullopt);
65 }
66
67 } // namespace
68 } // namespace perfetto
69