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// Copyright 2014 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/browser/chrome_elf_init_win.h"
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/metrics/field_trial.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/test_reg_util_win.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome_elf/chrome_elf_constants.h"
#include "components/variations/entropy_provider.h"
#include "components/variations/variations_associated_data.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "version.h" // NOLINT
namespace {
const char kBrowserBlacklistTrialEnabledGroupName[] = "Enabled";
class ChromeBlacklistTrialTest : public testing::Test {
protected:
ChromeBlacklistTrialTest() {}
virtual ~ChromeBlacklistTrialTest() {}
virtual void SetUp() override {
testing::Test::SetUp();
override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
blacklist_registry_key_.reset(
new base::win::RegKey(HKEY_CURRENT_USER,
blacklist::kRegistryBeaconPath,
KEY_QUERY_VALUE | KEY_SET_VALUE));
}
DWORD GetBlacklistState() {
DWORD blacklist_state = blacklist::BLACKLIST_STATE_MAX;
blacklist_registry_key_->ReadValueDW(blacklist::kBeaconState,
&blacklist_state);
return blacklist_state;
}
base::string16 GetBlacklistVersion() {
base::string16 blacklist_version;
blacklist_registry_key_->ReadValue(blacklist::kBeaconVersion,
&blacklist_version);
return blacklist_version;
}
scoped_ptr<base::win::RegKey> blacklist_registry_key_;
registry_util::RegistryOverrideManager override_manager_;
private:
DISALLOW_COPY_AND_ASSIGN(ChromeBlacklistTrialTest);
};
// Ensure that the default trial sets up the blacklist beacons.
TEST_F(ChromeBlacklistTrialTest, DefaultRun) {
// Set some dummy values as beacons.
blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
blacklist::BLACKLIST_DISABLED);
blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion, L"Data");
// This setup code should result in the default group, which should have
// the blacklist set up.
InitializeChromeElf();
// Ensure the beacon values are now correct, indicating the
// blacklist beacon was setup.
ASSERT_EQ(blacklist::BLACKLIST_ENABLED, GetBlacklistState());
chrome::VersionInfo version_info;
base::string16 version(base::UTF8ToUTF16(version_info.Version()));
ASSERT_EQ(version, GetBlacklistVersion());
}
// Ensure that the blacklist is disabled for any users in the
// "BlacklistDisabled" finch group.
TEST_F(ChromeBlacklistTrialTest, BlacklistDisabledRun) {
// Set the beacons to enabled values.
blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
blacklist::BLACKLIST_ENABLED);
blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion, L"Data");
// Create the field trial with the blacklist disabled group.
base::FieldTrialList field_trial_list(
new metrics::SHA1EntropyProvider("test"));
scoped_refptr<base::FieldTrial> trial(
base::FieldTrialList::CreateFieldTrial(
kBrowserBlacklistTrialName, kBrowserBlacklistTrialDisabledGroupName));
// This setup code should now delete any existing blacklist beacons.
InitializeChromeElf();
// Ensure invalid values are returned to indicate that the beacon
// values are indeed gone.
ASSERT_EQ(blacklist::BLACKLIST_STATE_MAX, GetBlacklistState());
ASSERT_EQ(base::string16(), GetBlacklistVersion());
}
TEST_F(ChromeBlacklistTrialTest, VerifyFirstRun) {
BrowserBlacklistBeaconSetup();
// Verify the state is properly set after the first run.
ASSERT_EQ(blacklist::BLACKLIST_ENABLED, GetBlacklistState());
chrome::VersionInfo version_info;
base::string16 version(base::UTF8ToUTF16(version_info.Version()));
ASSERT_EQ(version, GetBlacklistVersion());
}
TEST_F(ChromeBlacklistTrialTest, BlacklistFailed) {
// Ensure when the blacklist set up failed we set the state to disabled for
// future runs.
blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion,
TEXT(CHROME_VERSION_STRING));
blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
blacklist::BLACKLIST_SETUP_FAILED);
BrowserBlacklistBeaconSetup();
ASSERT_EQ(blacklist::BLACKLIST_DISABLED, GetBlacklistState());
}
TEST_F(ChromeBlacklistTrialTest, VersionChanged) {
// Mark the blacklist as disabled for an older version, it should
// get enabled for this new version. Also record a non-zero number of
// setup failures, which should be reset to zero.
blacklist_registry_key_->WriteValue(blacklist::kBeaconVersion,
L"old_version");
blacklist_registry_key_->WriteValue(blacklist::kBeaconState,
blacklist::BLACKLIST_DISABLED);
blacklist_registry_key_->WriteValue(blacklist::kBeaconAttemptCount,
blacklist::kBeaconMaxAttempts);
BrowserBlacklistBeaconSetup();
// The beacon should now be marked as enabled for the current version.
ASSERT_EQ(blacklist::BLACKLIST_ENABLED, GetBlacklistState());
chrome::VersionInfo version_info;
base::string16 expected_version(base::UTF8ToUTF16(version_info.Version()));
ASSERT_EQ(expected_version, GetBlacklistVersion());
// The counter should be reset.
DWORD attempt_count = blacklist::kBeaconMaxAttempts;
blacklist_registry_key_->ReadValueDW(blacklist::kBeaconAttemptCount,
&attempt_count);
ASSERT_EQ(static_cast<DWORD>(0), attempt_count);
}
TEST_F(ChromeBlacklistTrialTest, AddFinchBlacklistToRegistry) {
// Create the field trial with the blacklist enabled group.
base::FieldTrialList field_trial_list(
new metrics::SHA1EntropyProvider("test"));
scoped_refptr<base::FieldTrial> trial(base::FieldTrialList::CreateFieldTrial(
kBrowserBlacklistTrialName, kBrowserBlacklistTrialEnabledGroupName));
// Set up the trial with the desired parameters.
std::map<std::string, std::string> desired_params;
desired_params["TestDllName1"] = "TestDll1.dll";
desired_params["TestDllName2"] = "TestDll2.dll";
variations::AssociateVariationParams(
kBrowserBlacklistTrialName,
kBrowserBlacklistTrialEnabledGroupName,
desired_params);
// This should add the dlls in those parameters to the registry.
AddFinchBlacklistToRegistry();
// Check that all the values in desired_params were added to the registry.
base::win::RegKey finch_blacklist_registry_key(
HKEY_CURRENT_USER,
blacklist::kRegistryFinchListPath,
KEY_QUERY_VALUE | KEY_SET_VALUE);
ASSERT_EQ(desired_params.size(),
finch_blacklist_registry_key.GetValueCount());
for (std::map<std::string, std::string>::iterator it = desired_params.begin();
it != desired_params.end();
++it) {
std::wstring name = base::UTF8ToWide(it->first);
ASSERT_TRUE(finch_blacklist_registry_key.HasValue(name.c_str()));
}
}
} // namespace
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