Add a few tests to ProfilerEventsProcessor.

test/cctest/test-cpu-profiler.cc

Index: test/cctest/test-cpu-profiler.cc
diff --git a/test/cctest/test-cpu-profiler.cc b/test/cctest/test-cpu-profiler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bd966fa21b9ac8c9bb06938f4d380b9b98ca10ee
--- /dev/null
+++ b/test/cctest/test-cpu-profiler.cc
@@ -0,0 +1,202 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+//
+// Tests of profiles generator and utilities.
+
+#include "v8.h"
+#include "cpu-profiler-inl.h"
+#include "cctest.h"
+
+namespace i = v8::internal;
+
+using i::CodeEntry;
+using i::CpuProfilesCollection;
+using i::ProfileGenerator;
+using i::ProfileNode;
+using i::ProfilerEventsProcessor;
+
+
+TEST(StartStop) {
+  CpuProfilesCollection profiles;
+  ProfileGenerator generator(&profiles);
+  ProfilerEventsProcessor processor(&generator);
+  processor.Start();
+  while (!processor.running()) {
+    i::Thread::YieldCPU();
+  }
+  processor.Stop();
+  processor.Join();
+}
+
+static v8::Persistent<v8::Context> env;
+
+static void InitializeVM() {
+  if (env.IsEmpty()) env = v8::Context::New();
+  v8::HandleScope scope;
+  env->Enter();
+}
+
+static inline i::Address ToAddress(int n) {
+  return reinterpret_cast<i::Address>(n);
+}
+
+static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
+                                   i::Address frame1,
+                                   i::Address frame2 = NULL,
+                                   i::Address frame3 = NULL) {
+  i::TickSample* sample = proc->TickSampleEvent();
+  sample->pc = frame1;
+  sample->function = frame1;
+  sample->frames_count = 0;
+  if (frame2 != NULL) {
+    sample->stack[0] = frame2;
+    sample->frames_count = 1;
+  }
+  if (frame3 != NULL) {
+    sample->stack[1] = frame3;
+    sample->frames_count = 2;
+  }
+}
+
+TEST(CodeEvents) {
+  InitializeVM();
+  CpuProfilesCollection profiles;
+  profiles.AddProfile(0);
+  ProfileGenerator generator(&profiles);
+  ProfilerEventsProcessor processor(&generator);
+  processor.Start();
+  processor.SetUpSamplesProducer();
+  while (!processor.running()) {
+    i::Thread::YieldCPU();
+  }
+
+  // Enqueue code creation events.
+  i::HandleScope scope;
+  const char* aaa_str = "aaa";
+  i::Handle<i::String> aaa_name = i::Factory::NewStringFromAscii(
+      i::Vector<const char>(aaa_str, strlen(aaa_str)));
+  processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
+                            *aaa_name,
+                            i::Heap::empty_string(),
+                            0,
+                            ToAddress(0x1000),
+                            0x100);
+  processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
+                            "bbb",
+                            ToAddress(0x1200),
+                            0x80);
+  processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
+  processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
+                            "ddd",
+                            ToAddress(0x1400),
+                            0x80);
+  processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
+  processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
+  processor.CodeDeleteEvent(ToAddress(0x1600));
+  processor.FunctionCreateEvent(ToAddress(0x1700), ToAddress(0x1000));
+  // Enqueue a tick event to enable code events processing.
+  EnqueueTickSampleEvent(&processor, ToAddress(0x1000));
+
+  processor.Stop();
+  processor.Join();
+
+  // Check the state of profile generator.
+  CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
+  CHECK_NE(NULL, entry1);
+  CHECK_EQ(aaa_str, entry1->name());
+  CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
+  CHECK_NE(NULL, entry2);
+  CHECK_EQ("bbb", entry2->name());
+  CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
+  CHECK_NE(NULL, entry3);
+  CHECK_EQ("args_count: 5", entry3->name());
+  CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
+  CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
+  CHECK_NE(NULL, entry4);
+  CHECK_EQ("ddd", entry4->name());
+  CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
+  CodeEntry* entry5 = generator.code_map()->FindEntry(ToAddress(0x1700));
+  CHECK_NE(NULL, entry5);
+  CHECK_EQ(aaa_str, entry5->name());
+
+  processor.TearDownSamplesProducer();
+}
+
+
+template<typename T>
+static int CompareProfileNodes(const T* p1, const T* p2) {
+  return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
+}
+
+TEST(TickEvents) {
+  CpuProfilesCollection profiles;
+  profiles.AddProfile(0);
+  ProfileGenerator generator(&profiles);
+  ProfilerEventsProcessor processor(&generator);
+  processor.Start();
+  processor.SetUpSamplesProducer();
+  while (!processor.running()) {
+    i::Thread::YieldCPU();
+  }
+
+  processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
+                            "bbb",
+                            ToAddress(0x1200),
+                            0x80);
+  processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
+  processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
+                            "ddd",
+                            ToAddress(0x1400),
+                            0x80);
+  EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
+  EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
+  EnqueueTickSampleEvent(&processor,
+                         ToAddress(0x1404),
+                         ToAddress(0x1305),
+                         ToAddress(0x1230));
+
+  processor.Stop();
+  processor.Join();
+
+  // Check call trees.
+  i::List<ProfileNode*> top_down_root_children;
+  profiles.profile()->top_down()->root()->GetChildren(&top_down_root_children);
+  CHECK_EQ(1, top_down_root_children.length());
+  CHECK_EQ("bbb", top_down_root_children.last()->entry()->name());
+  i::List<ProfileNode*> top_down_bbb_children;
+  top_down_root_children.last()->GetChildren(&top_down_bbb_children);
+  CHECK_EQ(1, top_down_bbb_children.length());
+  CHECK_EQ("args_count: 5", top_down_bbb_children.last()->entry()->name());
+  i::List<ProfileNode*> top_down_stub_children;
+  top_down_bbb_children.last()->GetChildren(&top_down_stub_children);
+  CHECK_EQ(1, top_down_stub_children.length());
+  CHECK_EQ("ddd", top_down_stub_children.last()->entry()->name());
+  i::List<ProfileNode*> top_down_ddd_children;
+  top_down_stub_children.last()->GetChildren(&top_down_ddd_children);
+  CHECK_EQ(0, top_down_ddd_children.length());
+
+  i::List<ProfileNode*> bottom_up_root_children;
+  profiles.profile()->bottom_up()->root()->GetChildren(
+      &bottom_up_root_children);
+  CHECK_EQ(3, bottom_up_root_children.length());
+  bottom_up_root_children.Sort(&CompareProfileNodes);
+  CHECK_EQ("args_count: 5", bottom_up_root_children[0]->entry()->name());
+  CHECK_EQ("bbb", bottom_up_root_children[1]->entry()->name());
+  CHECK_EQ("ddd", bottom_up_root_children[2]->entry()->name());
+  i::List<ProfileNode*> bottom_up_stub_children;
+  bottom_up_root_children[0]->GetChildren(&bottom_up_stub_children);
+  CHECK_EQ(1, bottom_up_stub_children.length());
+  CHECK_EQ("bbb", bottom_up_stub_children.last()->entry()->name());
+  i::List<ProfileNode*> bottom_up_bbb_children;
+  bottom_up_root_children[1]->GetChildren(&bottom_up_bbb_children);
+  CHECK_EQ(0, bottom_up_bbb_children.length());
+  i::List<ProfileNode*> bottom_up_ddd_children;
+  bottom_up_root_children[2]->GetChildren(&bottom_up_ddd_children);
+  CHECK_EQ(1, bottom_up_ddd_children.length());
+  CHECK_EQ("args_count: 5", bottom_up_ddd_children.last()->entry()->name());
+  i::List<ProfileNode*> bottom_up_ddd_stub_children;
+  bottom_up_ddd_children.last()->GetChildren(&bottom_up_ddd_stub_children);
+  CHECK_EQ(1, bottom_up_ddd_stub_children.length());
+  CHECK_EQ("bbb", bottom_up_ddd_stub_children.last()->entry()->name());
+
+  processor.TearDownSamplesProducer();
+}