| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "ProcStat.h" |
| |
| #include <android-base/file.h> |
| #include <android-base/stringprintf.h> |
| #include <gmock/gmock.h> |
| #include <inttypes.h> |
| |
| #include <string> |
| |
| namespace android { |
| namespace automotive { |
| namespace watchdog { |
| |
| using ::android::base::StringPrintf; |
| using ::android::base::WriteStringToFile; |
| |
| namespace { |
| |
| std::string toString(const ProcStatInfo& info) { |
| const auto& cpuStats = info.cpuStats; |
| return StringPrintf("Cpu Stats:\nUserTime: %" PRIu64 " NiceTime: %" PRIu64 " SysTime: %" PRIu64 |
| " IdleTime: %" PRIu64 " IoWaitTime: %" PRIu64 " IrqTime: %" PRIu64 |
| " SoftIrqTime: %" PRIu64 " StealTime: %" PRIu64 " GuestTime: %" PRIu64 |
| " GuestNiceTime: %" PRIu64 "\nNumber of running processes: %" PRIu32 |
| "\nNumber of blocked processes: %" PRIu32, |
| cpuStats.userTime, cpuStats.niceTime, cpuStats.sysTime, cpuStats.idleTime, |
| cpuStats.ioWaitTime, cpuStats.irqTime, cpuStats.softIrqTime, |
| cpuStats.stealTime, cpuStats.guestTime, cpuStats.guestNiceTime, |
| info.runnableProcessCount, info.ioBlockedProcessCount); |
| } |
| |
| } // namespace |
| |
| TEST(ProcStatTest, TestValidStatFile) { |
| constexpr char firstSnapshot[] = |
| "cpu 6200 5700 1700 3100 1100 5200 3900 0 0 0\n" |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| /* Skipped most of the intr line as it is not important for testing the ProcStat parsing |
| * logic. |
| */ |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 17\n" |
| "procs_blocked 5\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| ProcStatInfo expectedFirstDelta; |
| expectedFirstDelta.cpuStats = { |
| .userTime = 6200, |
| .niceTime = 5700, |
| .sysTime = 1700, |
| .idleTime = 3100, |
| .ioWaitTime = 1100, |
| .irqTime = 5200, |
| .softIrqTime = 3900, |
| .stealTime = 0, |
| .guestTime = 0, |
| .guestNiceTime = 0, |
| }; |
| expectedFirstDelta.runnableProcessCount = 17; |
| expectedFirstDelta.ioBlockedProcessCount = 5; |
| |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(firstSnapshot, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| ASSERT_RESULT_OK(procStat.collect()); |
| |
| const auto& actualFirstDelta = procStat.deltaStats(); |
| EXPECT_EQ(expectedFirstDelta, actualFirstDelta) << "First snapshot doesn't match.\nExpected:\n" |
| << toString(expectedFirstDelta) << "\nActual:\n" |
| << toString(actualFirstDelta); |
| |
| constexpr char secondSnapshot[] = |
| "cpu 16200 8700 2000 4100 2200 6200 5900 0 0 0\n" |
| "cpu0 4400 3400 700 890 800 4500 3100 0 0 0\n" |
| "cpu1 5900 3380 610 960 100 670 2000 0 0 0\n" |
| "cpu2 2900 1000 450 1400 800 600 460 0 0 0\n" |
| "cpu3 3000 920 240 850 500 430 340 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 10\n" |
| "procs_blocked 2\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| ProcStatInfo expectedSecondDelta; |
| expectedSecondDelta.cpuStats = { |
| .userTime = 10000, |
| .niceTime = 3000, |
| .sysTime = 300, |
| .idleTime = 1000, |
| .ioWaitTime = 1100, |
| .irqTime = 1000, |
| .softIrqTime = 2000, |
| .stealTime = 0, |
| .guestTime = 0, |
| .guestNiceTime = 0, |
| }; |
| expectedSecondDelta.runnableProcessCount = 10; |
| expectedSecondDelta.ioBlockedProcessCount = 2; |
| |
| ASSERT_TRUE(WriteStringToFile(secondSnapshot, tf.path)); |
| ASSERT_RESULT_OK(procStat.collect()); |
| |
| const auto& actualSecondDelta = procStat.deltaStats(); |
| EXPECT_EQ(expectedSecondDelta, actualSecondDelta) |
| << "Second snapshot doesnt't match.\nExpected:\n" |
| << toString(expectedSecondDelta) << "\nActual:\n" |
| << toString(actualSecondDelta); |
| } |
| |
| TEST(ProcStatTest, TestErrorOnCorruptedStatFile) { |
| constexpr char contents[] = |
| "cpu 6200 5700 1700 3100 CORRUPTED DATA\n" |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 17\n" |
| "procs_blocked 5\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(contents, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| EXPECT_FALSE(procStat.collect().ok()) << "No error returned for corrupted file"; |
| } |
| |
| TEST(ProcStatTest, TestErrorOnMissingCpuLine) { |
| constexpr char contents[] = |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 17\n" |
| "procs_blocked 5\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(contents, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| EXPECT_FALSE(procStat.collect().ok()) << "No error returned due to missing cpu line"; |
| } |
| |
| TEST(ProcStatTest, TestErrorOnMissingProcsRunningLine) { |
| constexpr char contents[] = |
| "cpu 16200 8700 2000 4100 1250 6200 5900 0 0 0\n" |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_blocked 5\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(contents, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| EXPECT_FALSE(procStat.collect().ok()) << "No error returned due to missing procs_running line"; |
| } |
| |
| TEST(ProcStatTest, TestErrorOnMissingProcsBlockedLine) { |
| constexpr char contents[] = |
| "cpu 16200 8700 2000 4100 1250 6200 5900 0 0 0\n" |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 17\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(contents, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| EXPECT_FALSE(procStat.collect().ok()) << "No error returned due to missing procs_blocked line"; |
| } |
| |
| TEST(ProcStatTest, TestErrorOnUnknownProcsLine) { |
| constexpr char contents[] = |
| "cpu 16200 8700 2000 4100 1250 6200 5900 0 0 0\n" |
| "cpu0 2400 2900 600 690 340 4300 2100 0 0 0\n" |
| "cpu1 1900 2380 510 760 51 370 1500 0 0 0\n" |
| "cpu2 900 400 400 1000 600 400 160 0 0 0\n" |
| "cpu3 1000 20 190 650 109 130 140 0 0 0\n" |
| "intr 694351583 0 0 0 297062868 0 5922464 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 " |
| "0 0\n" |
| "ctxt 579020168\n" |
| "btime 1579718450\n" |
| "processes 113804\n" |
| "procs_running 17\n" |
| "procs_blocked 5\n" |
| "procs_sleeping 15\n" |
| "softirq 33275060 934664 11958403 5111 516325 200333 0 341482 10651335 0 8667407\n"; |
| TemporaryFile tf; |
| ASSERT_NE(tf.fd, -1); |
| ASSERT_TRUE(WriteStringToFile(contents, tf.path)); |
| |
| ProcStat procStat(tf.path); |
| ASSERT_TRUE(procStat.enabled()) << "Temporary file is inaccessible"; |
| EXPECT_FALSE(procStat.collect().ok()) << "No error returned due to unknown procs line"; |
| } |
| |
| TEST(ProcStatTest, TestProcStatContentsFromDevice) { |
| ProcStat procStat; |
| ASSERT_TRUE(procStat.enabled()) << kProcStatPath << " file is inaccessible"; |
| ASSERT_RESULT_OK(procStat.collect()); |
| |
| const auto& info = procStat.deltaStats(); |
| /* The below checks should pass because the /proc/stats file should have the CPU time spent |
| * since bootup and there should be at least one running process. |
| */ |
| EXPECT_GT(info.totalCpuTime(), 0); |
| EXPECT_GT(info.totalProcessCount(), 0); |
| } |
| |
| } // namespace watchdog |
| } // namespace automotive |
| } // namespace android |