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      1 /*
      2  * Copyright (C) 2015 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 <android-base/stringprintf.h>
     20 
     21 #include "command.h"
     22 #include "get_test_data.h"
     23 #include "test_util.h"
     24 
     25 static std::unique_ptr<Command> StatCmd() {
     26   return CreateCommandInstance("stat");
     27 }
     28 
     29 TEST(stat_cmd, no_options) {
     30   ASSERT_TRUE(StatCmd()->Run({"sleep", "1"}));
     31 }
     32 
     33 TEST(stat_cmd, event_option) {
     34   ASSERT_TRUE(StatCmd()->Run({"-e", "cpu-clock,task-clock", "sleep", "1"}));
     35 }
     36 
     37 TEST(stat_cmd, system_wide_option) {
     38   if (IsRoot()) {
     39     ASSERT_TRUE(StatCmd()->Run({"-a", "sleep", "1"}));
     40   }
     41 }
     42 
     43 TEST(stat_cmd, verbose_option) {
     44   ASSERT_TRUE(StatCmd()->Run({"--verbose", "sleep", "1"}));
     45 }
     46 
     47 TEST(stat_cmd, tracepoint_event) {
     48   if (IsRoot()) {
     49     ASSERT_TRUE(StatCmd()->Run({"-a", "-e", "sched:sched_switch", "sleep", "1"}));
     50   }
     51 }
     52 
     53 TEST(stat_cmd, event_modifier) {
     54   ASSERT_TRUE(StatCmd()->Run({"-e", "cpu-cycles:u,cpu-cycles:k", "sleep", "1"}));
     55 }
     56 
     57 void CreateProcesses(size_t count, std::vector<std::unique_ptr<Workload>>* workloads) {
     58   workloads->clear();
     59   for (size_t i = 0; i < count; ++i) {
     60     // Create a workload runs longer than profiling time.
     61     auto workload = Workload::CreateWorkload({"sleep", "1000"});
     62     ASSERT_TRUE(workload != nullptr);
     63     ASSERT_TRUE(workload->Start());
     64     workloads->push_back(std::move(workload));
     65   }
     66 }
     67 
     68 TEST(stat_cmd, existing_processes) {
     69   std::vector<std::unique_ptr<Workload>> workloads;
     70   CreateProcesses(2, &workloads);
     71   std::string pid_list =
     72       android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
     73   ASSERT_TRUE(StatCmd()->Run({"-p", pid_list, "sleep", "1"}));
     74 }
     75 
     76 TEST(stat_cmd, existing_threads) {
     77   std::vector<std::unique_ptr<Workload>> workloads;
     78   CreateProcesses(2, &workloads);
     79   // Process id can be used as thread id in linux.
     80   std::string tid_list =
     81       android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
     82   ASSERT_TRUE(StatCmd()->Run({"-t", tid_list, "sleep", "1"}));
     83 }
     84 
     85 TEST(stat_cmd, no_monitored_threads) {
     86   ASSERT_FALSE(StatCmd()->Run({""}));
     87 }
     88 
     89 TEST(stat_cmd, cpu_option) {
     90   ASSERT_TRUE(StatCmd()->Run({"--cpu", "0", "sleep", "1"}));
     91   if (IsRoot()) {
     92     ASSERT_TRUE(StatCmd()->Run({"--cpu", "0", "-a", "sleep", "1"}));
     93   }
     94 }
     95