Rebuild test history databases when starting up performance_ui_tests.

chrome/test/perf/performance_ui_tests.cc

+// Copyright (c) 2013 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 "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/json/json_file_value_serializer.h"
+#include "base/logging.h"
+#include "base/message_loop.h"
+#include "base/path_service.h"
+#include "base/string_util.h"
+#include "base/threading/platform_thread.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/themes/browser_theme_pack.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/test/perf/generate_profile.h"
+#include "chrome/test/perf/perf_test.h"
+#include "chrome/test/ui/ui_test_suite.h"
+#include "content/public/test/test_browser_thread.h"
+
+using content::BrowserThread;
+using extensions::Extension;
+
+namespace {
+
+const char kThemeExtension[] = "mblmlcbknbnfebdfjnolmcapmdofhmme";
+
+class PerfTest : public UITestSuite {

[Paweł Hajdan Jr., 2013/04/26 23:19:32]

Class name should include TestSuite. It's not a test, but a suite.

+ public:
+  PerfTest(int argc, char** argv) : UITestSuite(argc, argv) {}
+  virtual ~PerfTest() {}
+
+  virtual void Initialize() OVERRIDE {
+    // We do normal initialization afterwards because we want
+    UITestSuite::Initialize();
+
+    if (!default_profile_dir_.CreateUniqueTempDir()) {
+      LOG(ERROR) << "Failed to create default profile directory...";
+      exit(-1);

[Paweł Hajdan Jr., 2013/04/26 23:19:32]

I prefer CHECK or LOG(FATAL) over LOG + exit. Totally fine to do that here.

+    }
+
+    // Build a profile in default profile dir.
+    base::FilePath default_path =
+        default_profile_dir_.path().AppendASCII("Default");
+    if (!GenerateProfile(TOP_SITES, 20000, default_path)) {

[Paweł Hajdan Jr., 2013/04/26 23:19:32]

Let's extract 20000 to a named constant.

+      LOG(ERROR) << "Failed to generate default profile for tests...";
+      exit(-1);
+    }
+
+    perf_test::SetPathForProfileType(perf_test::DEFAULT_THEME,
+                                     default_profile_dir_.path());
+
+    if (!complex_profile_dir_.CreateUniqueTempDir()) {
+      LOG(ERROR) << "Failed to create complex profile directory...";
+      exit(-1);
+    }
+
+    if (!file_util::CopyDirectory(default_path,
+                                  complex_profile_dir_.path(),
+                                  true)) {
+      LOG(ERROR) << "Failed to copy data to complex profile directory...";
+      exit(-1);
+    }
+
+    base::FilePath complex_profile_default_dir =
+        complex_profile_dir_.path().AppendASCII("Default");
+
+    // Copy the Extensions directory from the template into the
+    // complex_profile_dir dir.
+    base::FilePath base_data_dir;
+    if (!PathService::Get(chrome::DIR_TEST_DATA, &base_data_dir)) {
+      LOG(ERROR) << "Failed to fetch test data dir";
+      exit(-1);
+    }
+    base_data_dir = base_data_dir.AppendASCII("profiles");
+    base_data_dir = base_data_dir.AppendASCII("profile_with_complex_theme");
+    base_data_dir = base_data_dir.AppendASCII("Default");
+
+    base::FilePath extensions_dir = base_data_dir.AppendASCII("Extensions");
+
+    if (!file_util::CopyDirectory(extensions_dir,
+                                  complex_profile_default_dir,
+                                  true)) {
+      LOG(ERROR) << "Failed to copy Extensions from complex profile template";
+      exit(-1);
+    }
+
+    // Parse the manifest and make a temporary extension object because the
+    // theme system takes extensions as input.
+    base::FilePath extension_base =
+        complex_profile_default_dir.AppendASCII("Extensions")
+        .AppendASCII(kThemeExtension)
+        .AppendASCII("1.1");
+
+    int error_code = 0;
+    std::string error;
+    JSONFileValueSerializer serializer(
+        extension_base.AppendASCII("manifest.json"));
+    scoped_ptr<DictionaryValue> valid_value(static_cast<DictionaryValue*>(
+        serializer.Deserialize(&error_code, &error)));
+    if (error_code != 0 || !valid_value) {
+      LOG(ERROR) << "Error parsing theme manifest: " << error;
+      exit(-1);
+    }
+
+    scoped_refptr<Extension> extension =
+        Extension::Create(extension_base,
+                          extensions::Manifest::INVALID_LOCATION,
+                          *valid_value,
+                          Extension::NO_FLAGS,
+                          &error);
+    if (!extension) {
+      LOG(ERROR) << "Error loading theme extension: " << error;
+      exit(-1);
+    }
+
+    // Build the "Cached Theme.pak" file in the template. (It's not committed
+    // both because committing large binary files is bad in a git world and
+    // because people don't remember to update it anyway, meaning we usually
+    // have the theme rebuild penalty in our data.)
+    MessageLoopForUI message_loop_;
+    content::TestBrowserThread ui_thread_(BrowserThread::UI, &message_loop_);
+    content::TestBrowserThread file_thread_(BrowserThread::FILE,
+                                            &message_loop_);
+
+    scoped_refptr<BrowserThemePack> theme(
+        BrowserThemePack::BuildFromExtension(extension));
+    if (!theme) {
+      LOG(ERROR) << "Failed to load theme from extension";
+      exit(-1);
+    }
+
+    theme->WriteToDisk(extension_base.AppendASCII("Cached Theme.pak"));
+
+    // Finally, we need to expand the template so that we point to the Cached
+    // Theme.pak.
+    std::string contents;
+    if (!file_util::ReadFileToString(
+            base_data_dir.AppendASCII("PreferencesTemplate"),
+            &contents)) {
+      LOG(ERROR) << "Failed to read preferences template";
+      exit(-1);
+    }
+
+    std::string path;
+#if defined(OS_WIN)
+    path = UTF16ToUTF8(complex_profile_dir_.path().value());
+#else
+    path = complex_profile_dir_.path().value();
+#endif
+
+    std::vector<std::string> subst;
+    subst.push_back(path);
+    std::string expanded = ReplaceStringPlaceholders(contents, subst, NULL);
+
+    if (file_util::WriteFile(
+            complex_profile_default_dir.AppendASCII("Preferences"),
+            expanded.c_str(), expanded.size()) == -1) {
+      LOG(ERROR) << "Failed to write preferences file to profile with theme";
+      exit(-1);
+    }
+
+    perf_test::SetPathForProfileType(perf_test::COMPLEX_THEME,
+                                     complex_profile_dir_.path());
+  }
+
+ private:
+  base::ScopedTempDir default_profile_dir_;
+  base::ScopedTempDir complex_profile_dir_;
+};
+
+}  // namespace
+
+int main(int argc, char **argv) {
+  base::PlatformThread::SetName("Tests_Main");
+  return PerfTest(argc, argv).Run();

[Paweł Hajdan Jr., 2013/04/26 23:19:32]

This (main) should move to a separate file, like run_all_perftests.cc

One advantage of doing so is you can extend the test suite in another binary.

+}