Move part of metrics from chrome/common to components

chrome/common/metrics/metrics_log_manager_unittest.cc

Index: chrome/common/metrics/metrics_log_manager_unittest.cc
diff --git a/chrome/common/metrics/metrics_log_manager_unittest.cc b/chrome/common/metrics/metrics_log_manager_unittest.cc
deleted file mode 100644
index 899cc0b4ecaeaea8304e515c7f87a4b66ef047bc..0000000000000000000000000000000000000000
--- a/chrome/common/metrics/metrics_log_manager_unittest.cc
+++ /dev/null
@@ -1,423 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "chrome/common/metrics/metrics_log_manager.h"
-
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/sha1.h"
-#include "chrome/common/metrics/metrics_log_base.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-// Dummy serializer that just stores logs in memory.
-class DummyLogSerializer : public MetricsLogManager::LogSerializer {
- public:
-  virtual void SerializeLogs(
-      const std::vector<MetricsLogManager::SerializedLog>& logs,
-      MetricsLogManager::LogType log_type) OVERRIDE {
-    persisted_logs_[log_type] = logs;
-  }
-
-  virtual void DeserializeLogs(
-      MetricsLogManager::LogType log_type,
-      std::vector<MetricsLogManager::SerializedLog>* logs) OVERRIDE {
-    ASSERT_NE(static_cast<void*>(NULL), logs);
-    *logs = persisted_logs_[log_type];
-  }
-
-  // Returns the number of logs of the given type.
-  size_t TypeCount(MetricsLogManager::LogType log_type) {
-    return persisted_logs_[log_type].size();
-  }
-
-  // In-memory "persitent storage".
-  std::vector<MetricsLogManager::SerializedLog> persisted_logs_[2];
-};
-
-}  // namespace
-
-TEST(MetricsLogManagerTest, StandardFlow) {
-  MetricsLogManager log_manager;
-
-  // Make sure a new manager has a clean slate.
-  EXPECT_EQ(NULL, log_manager.current_log());
-  EXPECT_FALSE(log_manager.has_staged_log());
-  EXPECT_FALSE(log_manager.has_unsent_logs());
-
-  // Check that the normal flow works.
-  MetricsLogBase* initial_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-  log_manager.BeginLoggingWithLog(initial_log);
-  EXPECT_EQ(initial_log, log_manager.current_log());
-  EXPECT_FALSE(log_manager.has_staged_log());
-
-  log_manager.FinishCurrentLog();
-  EXPECT_EQ(NULL, log_manager.current_log());
-  EXPECT_TRUE(log_manager.has_unsent_logs());
-  EXPECT_FALSE(log_manager.has_staged_log());
-
-  MetricsLogBase* second_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-  log_manager.BeginLoggingWithLog(second_log);
-  EXPECT_EQ(second_log, log_manager.current_log());
-
-  log_manager.StageNextLogForUpload();
-  EXPECT_TRUE(log_manager.has_staged_log());
-  EXPECT_FALSE(log_manager.staged_log_text().empty());
-
-  log_manager.DiscardStagedLog();
-  EXPECT_EQ(second_log, log_manager.current_log());
-  EXPECT_FALSE(log_manager.has_staged_log());
-  EXPECT_FALSE(log_manager.has_unsent_logs());
-  EXPECT_TRUE(log_manager.staged_log_text().empty());
-
-  EXPECT_FALSE(log_manager.has_unsent_logs());
-}
-
-TEST(MetricsLogManagerTest, AbandonedLog) {
-  MetricsLogManager log_manager;
-
-  MetricsLogBase* dummy_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-  log_manager.BeginLoggingWithLog(dummy_log);
-  EXPECT_EQ(dummy_log, log_manager.current_log());
-
-  log_manager.DiscardCurrentLog();
-  EXPECT_EQ(NULL, log_manager.current_log());
-  EXPECT_FALSE(log_manager.has_staged_log());
-}
-
-TEST(MetricsLogManagerTest, InterjectedLog) {
-  MetricsLogManager log_manager;
-
-  MetricsLogBase* ongoing_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "v");
-  MetricsLogBase* temp_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-
-  log_manager.BeginLoggingWithLog(ongoing_log);
-  EXPECT_EQ(ongoing_log, log_manager.current_log());
-
-  log_manager.PauseCurrentLog();
-  EXPECT_EQ(NULL, log_manager.current_log());
-
-  log_manager.BeginLoggingWithLog(temp_log);
-  EXPECT_EQ(temp_log, log_manager.current_log());
-  log_manager.FinishCurrentLog();
-  EXPECT_EQ(NULL, log_manager.current_log());
-
-  log_manager.ResumePausedLog();
-  EXPECT_EQ(ongoing_log, log_manager.current_log());
-
-  EXPECT_FALSE(log_manager.has_staged_log());
-  log_manager.StageNextLogForUpload();
-  log_manager.DiscardStagedLog();
-  EXPECT_FALSE(log_manager.has_unsent_logs());
-}
-
-TEST(MetricsLogManagerTest, InterjectedLogPreservesType) {
-  MetricsLogManager log_manager;
-  DummyLogSerializer* serializer = new DummyLogSerializer;
-  log_manager.set_log_serializer(serializer);
-  log_manager.LoadPersistedUnsentLogs();
-
-  MetricsLogBase* ongoing_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "v");
-  MetricsLogBase* temp_log =
-      new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-
-  log_manager.BeginLoggingWithLog(ongoing_log);
-  log_manager.PauseCurrentLog();
-  log_manager.BeginLoggingWithLog(temp_log);
-  log_manager.FinishCurrentLog();
-  log_manager.ResumePausedLog();
-  log_manager.StageNextLogForUpload();
-  log_manager.DiscardStagedLog();
-
-  // Verify that the remaining log (which is the original ongoing log) still
-  // has the right type.
-  log_manager.FinishCurrentLog();
-  log_manager.PersistUnsentLogs();
-  EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-  EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-}
-
-TEST(MetricsLogManagerTest, StoreAndLoad) {
-  std::vector<MetricsLogManager::SerializedLog> initial_logs;
-  std::vector<MetricsLogManager::SerializedLog> ongoing_logs;
-
-  // Set up some in-progress logging in a scoped log manager simulating the
-  // leadup to quitting, then persist as would be done on quit.
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    // Simulate a log having already been unsent from a previous session.
-    MetricsLogManager::SerializedLog log;
-    std::string text = "proto";
-    log.SwapLogText(&text);
-    serializer->persisted_logs_[MetricsLogBase::ONGOING_LOG].push_back(log);
-    EXPECT_FALSE(log_manager.has_unsent_logs());
-    log_manager.LoadPersistedUnsentLogs();
-    EXPECT_TRUE(log_manager.has_unsent_logs());
-
-    MetricsLogBase* log1 =
-        new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-    MetricsLogBase* log2 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "v");
-    log_manager.BeginLoggingWithLog(log1);
-    log_manager.FinishCurrentLog();
-    log_manager.BeginLoggingWithLog(log2);
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::NORMAL_STORE);
-    log_manager.FinishCurrentLog();
-
-    // Nothing should be written out until PersistUnsentLogs is called.
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(2U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-
-    // Save the logs to transfer over to a new serializer (since log_manager
-    // owns |serializer|, so it's about to go away.
-    initial_logs =
-        serializer->persisted_logs_[MetricsLogBase::INITIAL_STABILITY_LOG];
-    ongoing_logs = serializer->persisted_logs_[MetricsLogBase::ONGOING_LOG];
-  }
-
-  // Now simulate the relaunch, ensure that the log manager restores
-  // everything correctly, and verify that once the are handled they are not
-  // re-persisted.
-  {
-    MetricsLogManager log_manager;
-
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    serializer->persisted_logs_[MetricsLogBase::INITIAL_STABILITY_LOG] =
-        initial_logs;
-    serializer->persisted_logs_[MetricsLogBase::ONGOING_LOG] = ongoing_logs;
-
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-    EXPECT_TRUE(log_manager.has_unsent_logs());
-
-    log_manager.StageNextLogForUpload();
-    log_manager.DiscardStagedLog();
-    // The initial log should be sent first; update the persisted storage to
-    // verify.
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(2U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-
-    // Handle the first ongoing log.
-    log_manager.StageNextLogForUpload();
-    log_manager.DiscardStagedLog();
-    EXPECT_TRUE(log_manager.has_unsent_logs());
-
-    // Handle the last log.
-    log_manager.StageNextLogForUpload();
-    log_manager.DiscardStagedLog();
-    EXPECT_FALSE(log_manager.has_unsent_logs());
-
-    // Nothing should have changed "on disk" since PersistUnsentLogs hasn't been
-    // called again.
-    EXPECT_EQ(2U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-    // Persist, and make sure nothing is left.
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-}
-
-TEST(MetricsLogManagerTest, StoreStagedLogTypes) {
-  // Ensure that types are preserved when storing staged logs.
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    MetricsLogBase* log =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-    log_manager.BeginLoggingWithLog(log);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::NORMAL_STORE);
-    log_manager.PersistUnsentLogs();
-
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    MetricsLogBase* log =
-        new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-    log_manager.BeginLoggingWithLog(log);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::NORMAL_STORE);
-    log_manager.PersistUnsentLogs();
-
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-}
-
-TEST(MetricsLogManagerTest, LargeLogDiscarding) {
-  MetricsLogManager log_manager;
-  DummyLogSerializer* serializer = new DummyLogSerializer;
-  log_manager.set_log_serializer(serializer);
-  log_manager.LoadPersistedUnsentLogs();
-
-  // Set the size threshold very low, to verify that it's honored.
-  log_manager.set_max_ongoing_log_store_size(1);
-
-  MetricsLogBase* log1 =
-      new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-  MetricsLogBase* log2 =
-      new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "v");
-  log_manager.BeginLoggingWithLog(log1);
-  log_manager.FinishCurrentLog();
-  log_manager.BeginLoggingWithLog(log2);
-  log_manager.FinishCurrentLog();
-
-  // Only the ongoing log should be written out, due to the threshold.
-  log_manager.PersistUnsentLogs();
-  EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-  EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-}
-
-TEST(MetricsLogManagerTest, ProvisionalStoreStandardFlow) {
-  // Ensure that provisional store works, and discards the correct log.
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    MetricsLogBase* log1 =
-        new MetricsLogBase("id", 0, MetricsLogBase::INITIAL_STABILITY_LOG, "v");
-    MetricsLogBase* log2 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "v");
-    log_manager.BeginLoggingWithLog(log1);
-    log_manager.FinishCurrentLog();
-    log_manager.BeginLoggingWithLog(log2);
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::PROVISIONAL_STORE);
-    log_manager.FinishCurrentLog();
-    log_manager.DiscardLastProvisionalStore();
-
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(0U, serializer->TypeCount(MetricsLogBase::INITIAL_STABILITY_LOG));
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-}
-
-TEST(MetricsLogManagerTest, ProvisionalStoreNoop) {
-  // Ensure that trying to drop a sent log is a no-op, even if another log has
-  // since been staged.
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    MetricsLogBase* log1 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-    MetricsLogBase* log2 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-    log_manager.BeginLoggingWithLog(log1);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::PROVISIONAL_STORE);
-    log_manager.StageNextLogForUpload();
-    log_manager.DiscardStagedLog();
-    log_manager.BeginLoggingWithLog(log2);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::NORMAL_STORE);
-    log_manager.DiscardLastProvisionalStore();
-
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-
-  // Ensure that trying to drop more than once is a no-op
-  {
-    MetricsLogManager log_manager;
-    DummyLogSerializer* serializer = new DummyLogSerializer;
-    log_manager.set_log_serializer(serializer);
-    log_manager.LoadPersistedUnsentLogs();
-
-    MetricsLogBase* log1 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-    MetricsLogBase* log2 =
-        new MetricsLogBase("id", 0, MetricsLogBase::ONGOING_LOG, "version");
-    log_manager.BeginLoggingWithLog(log1);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::NORMAL_STORE);
-    log_manager.BeginLoggingWithLog(log2);
-    log_manager.FinishCurrentLog();
-    log_manager.StageNextLogForUpload();
-    log_manager.StoreStagedLogAsUnsent(MetricsLogManager::PROVISIONAL_STORE);
-    log_manager.DiscardLastProvisionalStore();
-    log_manager.DiscardLastProvisionalStore();
-
-    log_manager.PersistUnsentLogs();
-    EXPECT_EQ(1U, serializer->TypeCount(MetricsLogBase::ONGOING_LOG));
-  }
-}
-
-TEST(MetricsLogManagerTest, SerializedLog) {
-  const char kFooText[] = "foo";
-  const std::string foo_hash = base::SHA1HashString(kFooText);
-  const char kBarText[] = "bar";
-  const std::string bar_hash = base::SHA1HashString(kBarText);
-
-  MetricsLogManager::SerializedLog log;
-  EXPECT_TRUE(log.log_text().empty());
-  EXPECT_TRUE(log.log_hash().empty());
-
-  std::string foo = kFooText;
-  log.SwapLogText(&foo);
-  EXPECT_TRUE(foo.empty());
-  EXPECT_FALSE(log.IsEmpty());
-  EXPECT_EQ(kFooText, log.log_text());
-  EXPECT_EQ(foo_hash, log.log_hash());
-
-  std::string bar = kBarText;
-  log.SwapLogText(&bar);
-  EXPECT_EQ(kFooText, bar);
-  EXPECT_FALSE(log.IsEmpty());
-  EXPECT_EQ(kBarText, log.log_text());
-  EXPECT_EQ(bar_hash, log.log_hash());
-
-  log.Clear();
-  EXPECT_TRUE(log.IsEmpty());
-  EXPECT_TRUE(log.log_text().empty());
-  EXPECT_TRUE(log.log_hash().empty());
-
-  MetricsLogManager::SerializedLog log2;
-  foo = kFooText;
-  log2.SwapLogText(&foo);
-  log.Swap(&log2);
-  EXPECT_FALSE(log.IsEmpty());
-  EXPECT_EQ(kFooText, log.log_text());
-  EXPECT_EQ(foo_hash, log.log_hash());
-  EXPECT_TRUE(log2.IsEmpty());
-  EXPECT_TRUE(log2.log_text().empty());
-  EXPECT_TRUE(log2.log_hash().empty());
-}