Move Windows-specific Event Tracing for Windows implementation to base/win. ...

base/event_trace_consumer_win_unittest.cc

Index: base/event_trace_consumer_win_unittest.cc
===================================================================
--- base/event_trace_consumer_win_unittest.cc	(revision 65062)
+++ base/event_trace_consumer_win_unittest.cc	(working copy)
@@ -1,340 +0,0 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// Unit tests for event trace consumer_ base class.
-#include "base/event_trace_consumer_win.h"
-#include <list>
-#include "base/basictypes.h"
-#include "base/event_trace_controller_win.h"
-#include "base/event_trace_provider_win.h"
-#include "base/file_path.h"
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/scoped_handle.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#include <initguid.h>  // NOLINT - has to be last
-
-namespace {
-
-typedef std::list<EVENT_TRACE> EventQueue;
-
-class TestConsumer: public EtwTraceConsumerBase<TestConsumer> {
- public:
-  TestConsumer() {
-    sank_event_.Set(::CreateEvent(NULL, TRUE, FALSE, NULL));
-    ClearQueue();
-  }
-
-  ~TestConsumer() {
-    ClearQueue();
-    sank_event_.Close();
-  }
-
-  void ClearQueue() {
-    EventQueue::const_iterator it(events_.begin()), end(events_.end());
-
-    for (; it != end; ++it) {
-      delete [] it->MofData;
-    }
-
-    events_.clear();
-  }
-
-  static void EnqueueEvent(EVENT_TRACE* event) {
-    events_.push_back(*event);
-    EVENT_TRACE& back = events_.back();
-
-    if (NULL != event->MofData && 0 != event->MofLength) {
-      back.MofData = new char[event->MofLength];
-      memcpy(back.MofData, event->MofData, event->MofLength);
-    }
-  }
-
-  static void ProcessEvent(EVENT_TRACE* event) {
-    EnqueueEvent(event);
-    ::SetEvent(sank_event_.Get());
-  }
-
-  static ScopedHandle sank_event_;
-  static EventQueue events_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TestConsumer);
-};
-
-ScopedHandle TestConsumer::sank_event_;
-EventQueue TestConsumer::events_;
-
-const wchar_t* const kTestSessionName = L"TestLogSession";
-
-class EtwTraceConsumerBaseTest: public testing::Test {
- public:
-  virtual void SetUp() {
-    EtwTraceProperties ignore;
-    EtwTraceController::Stop(kTestSessionName, &ignore);
-  }
-};
-
-}  // namespace
-
-TEST_F(EtwTraceConsumerBaseTest, Initialize) {
-  TestConsumer consumer_;
-}
-
-TEST_F(EtwTraceConsumerBaseTest, OpenRealtimeSucceedsWhenNoSession) {
-  TestConsumer consumer_;
-
-  ASSERT_HRESULT_SUCCEEDED(consumer_.OpenRealtimeSession(kTestSessionName));
-}
-
-TEST_F(EtwTraceConsumerBaseTest, ConsumerImmediateFailureWhenNoSession) {
-  TestConsumer consumer_;
-
-  ASSERT_HRESULT_SUCCEEDED(consumer_.OpenRealtimeSession(kTestSessionName));
-  ASSERT_HRESULT_FAILED(consumer_.Consume());
-}
-
-namespace {
-
-class EtwTraceConsumerRealtimeTest: public testing::Test {
- public:
-  virtual void SetUp() {
-    ASSERT_HRESULT_SUCCEEDED(consumer_.OpenRealtimeSession(kTestSessionName));
-  }
-
-  virtual void TearDown() {
-    consumer_.Close();
-  }
-
-  DWORD ConsumerThread() {
-    ::SetEvent(consumer_ready_.Get());
-
-    HRESULT hr = consumer_.Consume();
-    return hr;
-  }
-
-  static DWORD WINAPI ConsumerThreadMainProc(void* arg) {
-    return reinterpret_cast<EtwTraceConsumerRealtimeTest*>(arg)->
-        ConsumerThread();
-  }
-
-  HRESULT StartConsumerThread() {
-    consumer_ready_.Set(::CreateEvent(NULL, TRUE, FALSE, NULL));
-    EXPECT_TRUE(consumer_ready_ != NULL);
-    consumer_thread_.Set(::CreateThread(NULL, 0, ConsumerThreadMainProc,
-        this, 0, NULL));
-    if (NULL == consumer_thread_.Get())
-      return HRESULT_FROM_WIN32(::GetLastError());
-
-    HRESULT hr = S_OK;
-    HANDLE events[] = { consumer_ready_, consumer_thread_ };
-    DWORD result = ::WaitForMultipleObjects(arraysize(events), events,
-                                            FALSE, INFINITE);
-    switch (result) {
-      case WAIT_OBJECT_0:
-        // The event was set, the consumer_ is ready.
-        return S_OK;
-      case WAIT_OBJECT_0 + 1: {
-          // The thread finished. This may race with the event, so check
-          // explicitly for the event here, before concluding there's trouble.
-          if (WAIT_OBJECT_0 == ::WaitForSingleObject(consumer_ready_, 0))
-            return S_OK;
-          DWORD exit_code = 0;
-          if (::GetExitCodeThread(consumer_thread_, &exit_code))
-            return exit_code;
-          else
-            return HRESULT_FROM_WIN32(::GetLastError());
-          break;
-        }
-      default:
-        return E_UNEXPECTED;
-        break;
-    }
-
-    return hr;
-  }
-
-  // Waits for consumer_ thread to exit, and returns its exit code.
-  HRESULT JoinConsumerThread() {
-    if (WAIT_OBJECT_0 != ::WaitForSingleObject(consumer_thread_, INFINITE))
-      return HRESULT_FROM_WIN32(::GetLastError());
-
-    DWORD exit_code = 0;
-    if (::GetExitCodeThread(consumer_thread_, &exit_code))
-      return exit_code;
-
-    return HRESULT_FROM_WIN32(::GetLastError());
-  }
-
-  TestConsumer consumer_;
-  ScopedHandle consumer_ready_;
-  ScopedHandle consumer_thread_;
-};
-}  // namespace
-
-TEST_F(EtwTraceConsumerRealtimeTest, ConsumerReturnsWhenSessionClosed) {
-  EtwTraceController controller;
-
-  HRESULT hr = controller.StartRealtimeSession(kTestSessionName, 100 * 1024);
-  if (hr == E_ACCESSDENIED) {
-    VLOG(1) << "You must be an administrator to run this test on Vista";
-    return;
-  }
-
-  // Start the consumer_.
-  ASSERT_HRESULT_SUCCEEDED(StartConsumerThread());
-
-  // Wait around for the consumer_ thread a bit.
-  ASSERT_EQ(WAIT_TIMEOUT, ::WaitForSingleObject(consumer_thread_, 50));
-
-  ASSERT_HRESULT_SUCCEEDED(controller.Stop(NULL));
-
-  // The consumer_ returns success on session stop.
-  ASSERT_HRESULT_SUCCEEDED(JoinConsumerThread());
-}
-
-namespace {
-
-// {036B8F65-8DF3-46e4-ABFC-6985C43D59BA}
-DEFINE_GUID(kTestProvider,
-  0x36b8f65, 0x8df3, 0x46e4, 0xab, 0xfc, 0x69, 0x85, 0xc4, 0x3d, 0x59, 0xba);
-
-// {57E47923-A549-476f-86CA-503D57F59E62}
-DEFINE_GUID(kTestEventType,
-  0x57e47923, 0xa549, 0x476f, 0x86, 0xca, 0x50, 0x3d, 0x57, 0xf5, 0x9e, 0x62);
-
-}  // namespace
-
-TEST_F(EtwTraceConsumerRealtimeTest, ConsumeEvent) {
-  EtwTraceController controller;
-  HRESULT hr = controller.StartRealtimeSession(kTestSessionName, 100 * 1024);
-  if (hr == E_ACCESSDENIED) {
-    VLOG(1) << "You must be an administrator to run this test on Vista";
-    return;
-  }
-
-  ASSERT_HRESULT_SUCCEEDED(controller.EnableProvider(kTestProvider,
-      TRACE_LEVEL_VERBOSE, 0xFFFFFFFF));
-
-  EtwTraceProvider provider(kTestProvider);
-  ASSERT_EQ(ERROR_SUCCESS, provider.Register());
-
-  // Start the consumer_.
-  ASSERT_HRESULT_SUCCEEDED(StartConsumerThread());
-
-  ASSERT_EQ(0, TestConsumer::events_.size());
-
-  EtwMofEvent<1> event(kTestEventType, 1, TRACE_LEVEL_ERROR);
-  EXPECT_EQ(ERROR_SUCCESS, provider.Log(&event.header));
-
-  EXPECT_EQ(WAIT_OBJECT_0, ::WaitForSingleObject(TestConsumer::sank_event_,
-                                                 INFINITE));
-  ASSERT_HRESULT_SUCCEEDED(controller.Stop(NULL));
-  ASSERT_HRESULT_SUCCEEDED(JoinConsumerThread());
-  ASSERT_NE(0u, TestConsumer::events_.size());
-}
-
-namespace {
-
-// We run events through a file session to assert that
-// the content comes through.
-class EtwTraceConsumerDataTest: public testing::Test {
- public:
-  EtwTraceConsumerDataTest() {
-  }
-
-  virtual void SetUp() {
-    EtwTraceProperties prop;
-    EtwTraceController::Stop(kTestSessionName, &prop);
-    // Construct a temp file name.
-    ASSERT_TRUE(file_util::CreateTemporaryFile(&temp_file_));
-  }
-
-  virtual void TearDown() {
-    EXPECT_TRUE(file_util::Delete(temp_file_, false));
-    EtwTraceProperties ignore;
-    EtwTraceController::Stop(kTestSessionName, &ignore);
-  }
-
-  HRESULT LogEventToTempSession(PEVENT_TRACE_HEADER header) {
-    EtwTraceController controller;
-
-    // Set up a file session.
-    HRESULT hr = controller.StartFileSession(kTestSessionName,
-                                             temp_file_.value().c_str());
-    if (FAILED(hr))
-      return hr;
-
-    // Enable our provider.
-    EXPECT_HRESULT_SUCCEEDED(controller.EnableProvider(kTestProvider,
-        TRACE_LEVEL_VERBOSE, 0xFFFFFFFF));
-
-    EtwTraceProvider provider(kTestProvider);
-    // Then register our provider, means we get a session handle immediately.
-    EXPECT_EQ(ERROR_SUCCESS, provider.Register());
-    // Trace the event, it goes to the temp file.
-    EXPECT_EQ(ERROR_SUCCESS, provider.Log(header));
-    EXPECT_HRESULT_SUCCEEDED(controller.DisableProvider(kTestProvider));
-    EXPECT_HRESULT_SUCCEEDED(provider.Unregister());
-    EXPECT_HRESULT_SUCCEEDED(controller.Flush(NULL));
-    EXPECT_HRESULT_SUCCEEDED(controller.Stop(NULL));
-
-    return S_OK;
-  }
-
-  HRESULT ConsumeEventFromTempSession() {
-    // Now consume the event(s).
-    TestConsumer consumer_;
-    HRESULT hr = consumer_.OpenFileSession(temp_file_.value().c_str());
-    if (SUCCEEDED(hr))
-      hr = consumer_.Consume();
-    consumer_.Close();
-    // And nab the result.
-    events_.swap(TestConsumer::events_);
-    return hr;
-  }
-
-  HRESULT RoundTripEvent(PEVENT_TRACE_HEADER header, PEVENT_TRACE* trace) {
-    file_util::Delete(temp_file_, false);
-
-    HRESULT hr = LogEventToTempSession(header);
-    if (SUCCEEDED(hr))
-      hr = ConsumeEventFromTempSession();
-
-    if (FAILED(hr))
-      return hr;
-
-    // We should now have the event in the queue.
-    if (events_.empty())
-      return E_FAIL;
-
-    *trace = &events_.back();
-    return S_OK;
-  }
-
-  EventQueue events_;
-  FilePath temp_file_;
-};
-
-}  // namespace
-
-
-TEST_F(EtwTraceConsumerDataTest, RoundTrip) {
-  EtwMofEvent<1> event(kTestEventType, 1, TRACE_LEVEL_ERROR);
-
-  static const char kData[] = "This is but test data";
-  event.fields[0].DataPtr = reinterpret_cast<ULONG64>(kData);
-  event.fields[0].Length = sizeof(kData);
-
-  PEVENT_TRACE trace = NULL;
-  HRESULT hr = RoundTripEvent(&event.header, &trace);
-  if (hr == E_ACCESSDENIED) {
-    VLOG(1) << "You must be an administrator to run this test on Vista";
-    return;
-  }
-  ASSERT_TRUE(NULL != trace);
-  ASSERT_EQ(sizeof(kData), trace->MofLength);
-  ASSERT_STREQ(kData, reinterpret_cast<const char*>(trace->MofData));
-}