gin/v8_isolate_memory_dump_provider_unittest.cc

   1 // Copyright 2015 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 "gin/v8_isolate_memory_dump_provider.h"
   6
   7 #include "base/trace_event/process_memory_dump.h"
   8 #include "gin/public/isolate_holder.h"
   9 #include "gin/test/v8_test.h"
  10
  11 namespace gin {
  12
  13 typedef V8Test V8MemoryDumpProviderTest;
  14
  15 // Checks if the dump provider runs without crashing and dumps root objects.
  16 TEST_F(V8MemoryDumpProviderTest, DumpStatistics) {
  17   // Sets the track objects flag for dumping object statistics. Since this is
  18   // not set before V8::InitializePlatform the sizes will not be accurate, but
  19   // this serves the purpose of this test.
  20   const char track_objects_flag[] = "--track-gc-object-stats";
  21   v8::V8::SetFlagsFromString(track_objects_flag,
  22                              static_cast<int>(strlen(track_objects_flag)));
  23
  24   scoped_ptr<base::trace_event::ProcessMemoryDump> process_memory_dump(
  25       new base::trace_event::ProcessMemoryDump(nullptr));
  26   base::trace_event::MemoryDumpArgs dump_args = {
  27       base::trace_event::MemoryDumpLevelOfDetail::DETAILED};
  28   instance_->isolate_memory_dump_provider_for_testing()->OnMemoryDump(
  29       dump_args, process_memory_dump.get());
  30   const base::trace_event::ProcessMemoryDump::AllocatorDumpsMap&
  31       allocator_dumps = process_memory_dump->allocator_dumps();
  32
  33   bool did_dump_isolate_stats = false;
  34   bool did_dump_space_stats = false;
  35   bool did_dump_objects_stats = false;
  36   for (const auto& it : allocator_dumps) {
  37     const std::string& dump_name = it.first;
  38     if (dump_name.find("v8/isolate") != std::string::npos) {
  39       did_dump_isolate_stats = true;
  40     }
  41     if (dump_name.find("heap_spaces") != std::string::npos) {
  42       did_dump_space_stats = true;
  43     } else if (dump_name.find("heap_objects") != std::string::npos) {
  44       did_dump_objects_stats = true;
  45     }
  46   }
  47
  48   ASSERT_TRUE(did_dump_isolate_stats);
  49   ASSERT_TRUE(did_dump_space_stats);
  50   ASSERT_TRUE(did_dump_objects_stats);
  51 }
  52
  53 }  // namespace gin