chrome/browser/task_profiler/task_profiler_data_serializer_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <string>
   6
   7 #include "base/basictypes.h"
   8 #include "base/json/json_writer.h"
   9 #include "base/process/process_handle.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/tracked_objects.h"
  12 #include "base/values.h"
  13 #include "chrome/browser/task_profiler/task_profiler_data_serializer.h"
  14 #include "content/public/common/process_type.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16
  17 namespace {
  18
  19 void ExpectSerialization(
  20     const tracked_objects::ProcessDataPhaseSnapshot& process_data_phase,
  21     base::ProcessId process_id,
  22     int process_type,
  23     const std::string& expected_json) {
  24   base::DictionaryValue serialized_value;
  25   task_profiler::TaskProfilerDataSerializer::ToValue(
  26       process_data_phase, process_id, process_type, &serialized_value);
  27
  28   std::string serialized_json;
  29   base::JSONWriter::Write(&serialized_value, &serialized_json);
  30
  31   EXPECT_EQ(expected_json, serialized_json);
  32 }
  33
  34 }  // anonymous namespace
  35
  36 // Tests the JSON serialization format for profiled process data.
  37 TEST(TaskProfilerDataSerializerTest, SerializeProcessDataToJson) {
  38   {
  39     // Empty data.
  40     tracked_objects::ProcessDataPhaseSnapshot process_data_phase;
  41     int process_type = content::PROCESS_TYPE_BROWSER;
  42     ExpectSerialization(process_data_phase, 239, process_type,
  43                         "{"
  44                         "\"descendants\":["
  45                         "],"
  46                         "\"list\":["
  47                         "],"
  48                         "\"process_id\":239,"
  49                         "\"process_type\":\"Browser\""
  50                         "}");
  51   }
  52
  53   {
  54     // Non-empty data.
  55     tracked_objects::ProcessDataPhaseSnapshot process_data_phase;
  56
  57     tracked_objects::BirthOnThreadSnapshot parent;
  58     parent.location.file_name = "path/to/foo.cc";
  59     parent.location.function_name = "WhizBang";
  60     parent.location.line_number = 101;
  61     parent.thread_name = "CrBrowserMain";
  62
  63     tracked_objects::BirthOnThreadSnapshot child;
  64     child.location.file_name = "path/to/bar.cc";
  65     child.location.function_name = "FizzBoom";
  66     child.location.line_number = 433;
  67     child.thread_name = "Chrome_IOThread";
  68
  69
  70     // Add a snapshot.
  71     process_data_phase.tasks.push_back(tracked_objects::TaskSnapshot());
  72     process_data_phase.tasks.back().birth = parent;
  73     process_data_phase.tasks.back().death_data.count = 37;
  74     process_data_phase.tasks.back().death_data.run_duration_max = 5;
  75     process_data_phase.tasks.back().death_data.run_duration_sample = 3;
  76     process_data_phase.tasks.back().death_data.run_duration_sum = 17;
  77     process_data_phase.tasks.back().death_data.queue_duration_max = 53;
  78     process_data_phase.tasks.back().death_data.queue_duration_sample = 13;
  79     process_data_phase.tasks.back().death_data.queue_duration_sum = 79;
  80     process_data_phase.tasks.back().death_thread_name =
  81         "WorkerPool/-1340960768";
  82
  83     // Add a second snapshot.
  84     process_data_phase.tasks.push_back(tracked_objects::TaskSnapshot());
  85     process_data_phase.tasks.back().birth = child;
  86     process_data_phase.tasks.back().death_data.count = 41;
  87     process_data_phase.tasks.back().death_data.run_duration_max = 205;
  88     process_data_phase.tasks.back().death_data.run_duration_sample = 203;
  89     process_data_phase.tasks.back().death_data.run_duration_sum = 2017;
  90     process_data_phase.tasks.back().death_data.queue_duration_max = 2053;
  91     process_data_phase.tasks.back().death_data.queue_duration_sample = 2013;
  92     process_data_phase.tasks.back().death_data.queue_duration_sum = 2079;
  93     process_data_phase.tasks.back().death_thread_name = "PAC thread #3";
  94
  95     // Add a parent-child pair.
  96     process_data_phase.descendants.push_back(
  97         tracked_objects::ParentChildPairSnapshot());
  98     process_data_phase.descendants.back().parent = parent;
  99     process_data_phase.descendants.back().child = child;
 100
 101     int process_type = content::PROCESS_TYPE_RENDERER;
 102     ExpectSerialization(process_data_phase, 239, process_type,
 103                         "{"
 104                         "\"descendants\":["
 105                         "{"
 106                         "\"child_location\":{"
 107                         "\"file_name\":\"path/to/bar.cc\","
 108                         "\"function_name\":\"FizzBoom\","
 109                         "\"line_number\":433"
 110                         "},"
 111                         "\"child_thread\":\"Chrome_IOThread\","
 112                         "\"parent_location\":{"
 113                         "\"file_name\":\"path/to/foo.cc\","
 114                         "\"function_name\":\"WhizBang\","
 115                         "\"line_number\":101"
 116                         "},"
 117                         "\"parent_thread\":\"CrBrowserMain\""
 118                         "}"
 119                         "],"
 120                         "\"list\":[{"
 121                         "\"birth_location\":{"
 122                         "\"file_name\":\"path/to/foo.cc\","
 123                         "\"function_name\":\"WhizBang\","
 124                         "\"line_number\":101"
 125                         "},"
 126                         "\"birth_thread\":\"CrBrowserMain\","
 127                         "\"death_data\":{"
 128                         "\"count\":37,"
 129                         "\"queue_ms\":79,"
 130                         "\"queue_ms_max\":53,"
 131                         "\"queue_ms_sample\":13,"
 132                         "\"run_ms\":17,"
 133                         "\"run_ms_max\":5,"
 134                         "\"run_ms_sample\":3"
 135                         "},"
 136                         "\"death_thread\":\"WorkerPool/-1340960768\""
 137                         "},{"
 138                         "\"birth_location\":{"
 139                         "\"file_name\":\"path/to/bar.cc\","
 140                         "\"function_name\":\"FizzBoom\","
 141                         "\"line_number\":433"
 142                         "},"
 143                         "\"birth_thread\":\"Chrome_IOThread\","
 144                         "\"death_data\":{"
 145                         "\"count\":41,"
 146                         "\"queue_ms\":2079,"
 147                         "\"queue_ms_max\":2053,"
 148                         "\"queue_ms_sample\":2013,"
 149                         "\"run_ms\":2017,"
 150                         "\"run_ms_max\":205,"
 151                         "\"run_ms_sample\":203"
 152                         "},"
 153                         "\"death_thread\":\"PAC thread #3\""
 154                         "}],"
 155                         "\"process_id\":239,"
 156                         "\"process_type\":\"Tab\""
 157                         "}");
 158   }
 159 }