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chromeos_policy_unittest.cc
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//
// Copyright (C) 2014 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "update_engine/update_manager/chromeos_policy.h"
#include <memory>
#include <set>
#include "update_engine/update_manager/next_update_check_policy_impl.h"
#include "update_engine/update_manager/policy_test_utils.h"
#include "update_engine/update_manager/weekly_time.h"
using base::Time;
using base::TimeDelta;
using chromeos_update_engine::ConnectionTethering;
using chromeos_update_engine::ConnectionType;
using chromeos_update_engine::ErrorCode;
using chromeos_update_engine::InstallPlan;
using std::set;
using std::string;
namespace chromeos_update_manager {
class UmChromeOSPolicyTest : public UmPolicyTestBase {
protected:
UmChromeOSPolicyTest() : UmPolicyTestBase() {
policy_ = std::make_unique<ChromeOSPolicy>();
}
void SetUp() override {
UmPolicyTestBase::SetUp();
SetUpDefaultDevicePolicy();
}
void SetUpDefaultState() override {
UmPolicyTestBase::SetUpDefaultState();
// OOBE is enabled by default.
fake_state_.config_provider()->var_is_oobe_enabled()->reset(new bool(true));
// For the purpose of the tests, this is an official build and OOBE was
// completed.
fake_state_.system_provider()->var_is_official_build()->reset(
new bool(true));
fake_state_.system_provider()->var_is_oobe_complete()->reset(
new bool(true));
// NOLINTNEXTLINE(readability/casting)
fake_state_.system_provider()->var_num_slots()->reset(new unsigned int(2));
// Connection is wifi, untethered.
fake_state_.shill_provider()->var_conn_type()->reset(
new ConnectionType(ConnectionType::kWifi));
fake_state_.shill_provider()->var_conn_tethering()->reset(
new ConnectionTethering(ConnectionTethering::kNotDetected));
}
// Sets up a default device policy that does not impose any restrictions
// (HTTP) nor enables any features (P2P).
void SetUpDefaultDevicePolicy() {
fake_state_.device_policy_provider()->var_device_policy_is_loaded()->reset(
new bool(true));
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(false));
fake_state_.device_policy_provider()
->var_allowed_connection_types_for_update()
->reset(nullptr);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta());
fake_state_.device_policy_provider()->var_http_downloads_enabled()->reset(
new bool(true));
fake_state_.device_policy_provider()->var_au_p2p_enabled()->reset(
new bool(false));
fake_state_.device_policy_provider()
->var_release_channel_delegated()
->reset(new bool(true));
fake_state_.device_policy_provider()
->var_disallowed_time_intervals()
->reset(new WeeklyTimeIntervalVector());
}
// Configures the policy to return a desired value from UpdateCheckAllowed by
// faking the current wall clock time as needed. Restores the default state.
// This is used when testing policies that depend on this one.
//
// Note that the default implementation relies on NextUpdateCheckPolicyImpl to
// set the FakeClock to the appropriate time.
virtual void SetUpdateCheckAllowed(bool allow_check) {
Time next_update_check;
CallMethodWithContext(&NextUpdateCheckTimePolicyImpl::NextUpdateCheckTime,
&next_update_check,
ChromeOSPolicy::kNextUpdateCheckPolicyConstants);
SetUpDefaultState();
SetUpDefaultDevicePolicy();
Time curr_time = next_update_check;
if (allow_check)
curr_time += TimeDelta::FromSeconds(1);
else
curr_time -= TimeDelta::FromSeconds(1);
fake_clock_->SetWallclockTime(curr_time);
}
// Sets the policies required for a kiosk app to control Chrome OS version:
// - AllowKioskAppControlChromeVersion = True
// - UpdateDisabled = True
// In the kiosk app manifest:
// - RequiredPlatformVersion = 1234.
void SetKioskAppControlsChromeOsVersion() {
fake_state_.device_policy_provider()
->var_allow_kiosk_app_control_chrome_version()
->reset(new bool(true));
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(true));
fake_state_.system_provider()->var_kiosk_required_platform_version()->reset(
new string("1234."));
}
// Sets up a test with the value of RollbackToTargetVersion policy (and
// whether it's set), and returns the value of
// UpdateCheckParams.rollback_allowed.
bool TestRollbackAllowed(bool set_policy,
RollbackToTargetVersion rollback_to_target_version) {
// Update check is allowed, response includes attributes for use in the
// request.
SetUpdateCheckAllowed(true);
if (set_policy) {
// Override RollbackToTargetVersion device policy attribute.
fake_state_.device_policy_provider()
->var_rollback_to_target_version()
->reset(new RollbackToTargetVersion(rollback_to_target_version));
}
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
return result.rollback_allowed;
}
// Sets up a test with the given intervals and the current fake wallclock
// time.
void TestDisallowedTimeIntervals(const WeeklyTimeIntervalVector& intervals,
const ErrorCode& expected_error_code,
bool kiosk) {
SetUpDefaultTimeProvider();
if (kiosk)
fake_state_.device_policy_provider()
->var_auto_launched_kiosk_app_id()
->reset(new string("myapp"));
fake_state_.device_policy_provider()
->var_disallowed_time_intervals()
->reset(new WeeklyTimeIntervalVector(intervals));
// Check that |expected_status| matches the value of UpdateCheckAllowed
ErrorCode result;
InstallPlan install_plan;
ExpectPolicyStatus(EvalStatus::kSucceeded,
&Policy::UpdateCanBeApplied,
&result,
&install_plan);
EXPECT_EQ(result, expected_error_code);
}
};
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedWaitsForTheTimeout) {
// We get the next update_check timestamp from the policy's private method
// and then we check the public method respects that value on the normal
// case.
Time next_update_check;
Time last_checked_time =
fake_clock_->GetWallclockTime() + TimeDelta::FromMinutes(1234);
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
CallMethodWithContext(&NextUpdateCheckTimePolicyImpl::NextUpdateCheckTime,
&next_update_check,
ChromeOSPolicy::kNextUpdateCheckPolicyConstants);
UpdateCheckParams result;
// Check that the policy blocks until the next_update_check is reached.
SetUpDefaultClock();
SetUpDefaultState();
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
fake_clock_->SetWallclockTime(next_update_check - TimeDelta::FromSeconds(1));
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
SetUpDefaultClock();
SetUpDefaultState();
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
fake_clock_->SetWallclockTime(next_update_check + TimeDelta::FromSeconds(1));
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedWaitsForOOBE) {
// Update checks are deferred until OOBE is completed.
// Ensure that update is not allowed even if wait period is satisfied.
Time next_update_check;
Time last_checked_time =
fake_clock_->GetWallclockTime() + TimeDelta::FromMinutes(1234);
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
CallMethodWithContext(&NextUpdateCheckTimePolicyImpl::NextUpdateCheckTime,
&next_update_check,
ChromeOSPolicy::kNextUpdateCheckPolicyConstants);
SetUpDefaultClock();
SetUpDefaultState();
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
fake_clock_->SetWallclockTime(next_update_check + TimeDelta::FromSeconds(1));
fake_state_.system_provider()->var_is_oobe_complete()->reset(new bool(false));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
// Now check that it is allowed if OOBE is completed.
SetUpDefaultClock();
SetUpDefaultState();
fake_state_.updater_provider()->var_last_checked_time()->reset(
new Time(last_checked_time));
fake_clock_->SetWallclockTime(next_update_check + TimeDelta::FromSeconds(1));
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedWithAttributes) {
// Update check is allowed, response includes attributes for use in the
// request.
SetUpdateCheckAllowed(true);
// Override specific device policy attributes.
fake_state_.device_policy_provider()->var_target_version_prefix()->reset(
new string("1.2"));
fake_state_.device_policy_provider()
->var_rollback_allowed_milestones()
->reset(new int(5));
fake_state_.device_policy_provider()->var_release_channel_delegated()->reset(
new bool(false));
fake_state_.device_policy_provider()->var_release_channel()->reset(
new string("foo-channel"));
fake_state_.device_policy_provider()->var_release_lts_tag()->reset(
new string("foo-hint"));
fake_state_.device_policy_provider()->var_quick_fix_build_token()->reset(
new string("foo-token"));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_EQ("1.2", result.target_version_prefix);
EXPECT_EQ(5, result.rollback_allowed_milestones);
EXPECT_EQ("foo-channel", result.target_channel);
EXPECT_EQ("foo-hint", result.lts_tag);
EXPECT_EQ("foo-token", result.quick_fix_build_token);
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedRollbackAndPowerwash) {
EXPECT_TRUE(TestRollbackAllowed(
true, RollbackToTargetVersion::kRollbackAndPowerwash));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedRollbackAndRestoreIfPossible) {
// We're doing rollback even if we don't support data save and restore.
EXPECT_TRUE(TestRollbackAllowed(
true, RollbackToTargetVersion::kRollbackAndRestoreIfPossible));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedRollbackDisabled) {
EXPECT_FALSE(TestRollbackAllowed(true, RollbackToTargetVersion::kDisabled));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedRollbackUnspecified) {
EXPECT_FALSE(
TestRollbackAllowed(true, RollbackToTargetVersion::kUnspecified));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedRollbackNotSet) {
EXPECT_FALSE(
TestRollbackAllowed(false, RollbackToTargetVersion::kUnspecified));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskRollbackAllowed) {
SetKioskAppControlsChromeOsVersion();
EXPECT_TRUE(TestRollbackAllowed(
true, RollbackToTargetVersion::kRollbackAndPowerwash));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskRollbackDisabled) {
SetKioskAppControlsChromeOsVersion();
EXPECT_FALSE(TestRollbackAllowed(true, RollbackToTargetVersion::kDisabled));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskRollbackUnspecified) {
SetKioskAppControlsChromeOsVersion();
EXPECT_FALSE(
TestRollbackAllowed(true, RollbackToTargetVersion::kUnspecified));
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskRollbackNotSet) {
SetKioskAppControlsChromeOsVersion();
EXPECT_FALSE(
TestRollbackAllowed(false, RollbackToTargetVersion::kUnspecified));
}
TEST_F(UmChromeOSPolicyTest,
UpdateCheckAllowedUpdatesDisabledForUnofficialBuilds) {
// UpdateCheckAllowed should return kAskMeAgainLater if this is an unofficial
// build; we don't want periodic update checks on developer images.
fake_state_.system_provider()->var_is_official_build()->reset(
new bool(false));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
}
TEST_F(UmChromeOSPolicyTest, TestUpdateCheckIntervalTimeout) {
fake_state_.updater_provider()
->var_test_update_check_interval_timeout()
->reset(new int64_t(10));
fake_state_.system_provider()->var_is_official_build()->reset(
new bool(false));
// The first time, update should not be allowed.
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
// After moving the time forward more than the update check interval, it
// should now allow for update.
fake_clock_->SetWallclockTime(fake_clock_->GetWallclockTime() +
TimeDelta::FromSeconds(11));
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCheckAllowedUpdatesDisabledWhenNotEnoughSlotsAbUpdates) {
// UpdateCheckAllowed should return false (kSucceeded) if the image booted
// without enough slots to do A/B updates.
// NOLINTNEXTLINE(readability/casting)
fake_state_.system_provider()->var_num_slots()->reset(new unsigned int(1));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_FALSE(result.updates_enabled);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedUpdatesDisabledByPolicy) {
// UpdateCheckAllowed should return kAskMeAgainLater because a device policy
// is loaded and prohibits updates.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(true));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCheckAllowedForcedUpdateRequestedInteractive) {
// UpdateCheckAllowed should return true because a forced update request was
// signaled for an interactive update.
SetUpdateCheckAllowed(true);
fake_state_.updater_provider()->var_forced_update_requested()->reset(
new UpdateRequestStatus(UpdateRequestStatus::kInteractive));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_TRUE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedForcedUpdateRequestedPeriodic) {
// UpdateCheckAllowed should return true because a forced update request was
// signaled for a periodic check.
SetUpdateCheckAllowed(true);
fake_state_.updater_provider()->var_forced_update_requested()->reset(
new UpdateRequestStatus(UpdateRequestStatus::kPeriodic));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskPin) {
// Update check is allowed.
SetUpdateCheckAllowed(true);
SetKioskAppControlsChromeOsVersion();
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_EQ("1234.", result.target_version_prefix);
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedDisabledWhenNoKioskPin) {
// Update check is allowed.
SetUpdateCheckAllowed(true);
// Disable AU policy is set but kiosk pin policy is set to false. Update is
// disabled in such case.
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(true));
fake_state_.device_policy_provider()
->var_allow_kiosk_app_control_chrome_version()
->reset(new bool(false));
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
}
TEST_F(UmChromeOSPolicyTest, UpdateCheckAllowedKioskPinWithNoRequiredVersion) {
// Update check is allowed.
SetUpdateCheckAllowed(true);
// AU disabled, allow kiosk to pin but there is no kiosk required platform
// version (i.e. app does not provide the info). Update to latest in such
// case.
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(true));
fake_state_.device_policy_provider()
->var_allow_kiosk_app_control_chrome_version()
->reset(new bool(true));
fake_state_.system_provider()->var_kiosk_required_platform_version()->reset(
new string());
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCheckAllowed, &result);
EXPECT_TRUE(result.updates_enabled);
EXPECT_TRUE(result.target_version_prefix.empty());
EXPECT_FALSE(result.interactive);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCheckAllowedKioskPinWithFailedGetRequiredVersionCall) {
// AU disabled, allow kiosk to pin but D-Bus call to get required platform
// version failed. Defer update check in this case.
fake_state_.device_policy_provider()->var_update_disabled()->reset(
new bool(true));
fake_state_.device_policy_provider()
->var_allow_kiosk_app_control_chrome_version()
->reset(new bool(true));
fake_state_.system_provider()->var_kiosk_required_platform_version()->reset(
nullptr);
UpdateCheckParams result;
ExpectPolicyStatus(
EvalStatus::kAskMeAgainLater, &Policy::UpdateCheckAllowed, &result);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartFailsCheckAllowedError) {
// The UpdateCanStart policy fails, not being able to query
// UpdateCheckAllowed.
// Configure the UpdateCheckAllowed policy to fail.
fake_state_.updater_provider()->var_updater_started_time()->reset(nullptr);
// Check that the UpdateCanStart fails.
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromMinutes(10));
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kFailed, &Policy::UpdateCanStart, &result, update_state);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartNotAllowedCheckDue) {
// The UpdateCanStart policy returns false because we are due for another
// update check. Ensure that download related values are still returned.
SetUpdateCheckAllowed(true);
// Check that the UpdateCanStart returns false.
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromMinutes(10));
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kCheckDue, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_EQ(0, result.download_url_num_errors);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedNoDevicePolicy) {
// The UpdateCanStart policy returns true; no device policy is loaded.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_device_policy_is_loaded()->reset(
new bool(false));
// Check that the UpdateCanStart returns true with no further attributes.
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromMinutes(10));
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_FALSE(result.p2p_downloading_allowed);
EXPECT_FALSE(result.p2p_sharing_allowed);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_FALSE(result.do_increment_failures);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedBlankPolicy) {
// The UpdateCanStart policy returns true; device policy is loaded but imposes
// no restrictions on updating.
SetUpdateCheckAllowed(false);
// Check that the UpdateCanStart returns true.
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromMinutes(10));
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_FALSE(result.p2p_downloading_allowed);
EXPECT_FALSE(result.p2p_sharing_allowed);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_FALSE(result.do_increment_failures);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedBackoffNewWaitPeriodApplies) {
// The UpdateCanStart policy returns false; failures are reported and a new
// backoff period is enacted.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kBackoff, result.cannot_start_reason);
EXPECT_TRUE(result.do_increment_failures);
EXPECT_LT(curr_time, result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedBackoffPrevWaitPeriodStillApplies) {
// The UpdateCanStart policy returns false; a previously enacted backoff
// period still applies.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
update_state.failures_last_updated = curr_time;
update_state.backoff_expiry = curr_time + TimeDelta::FromMinutes(3);
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(EvalStatus::kAskMeAgainLater,
&Policy::UpdateCanStart,
&result,
update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kBackoff, result.cannot_start_reason);
EXPECT_FALSE(result.do_increment_failures);
EXPECT_LT(curr_time, result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedBackoffSatisfied) {
// The UpdateCanStart policy returns true; a previously enacted backoff period
// has elapsed, we're good to go.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
update_state.failures_last_updated = curr_time - TimeDelta::FromSeconds(1);
update_state.backoff_expiry = curr_time - TimeDelta::FromSeconds(1);
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kUndefined, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_FALSE(result.do_increment_failures);
EXPECT_EQ(Time(), result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedBackoffDisabled) {
// The UpdateCanStart policy returns false; failures are reported but backoff
// is disabled.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
update_state.is_backoff_disabled = true;
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kUndefined, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_TRUE(result.do_increment_failures);
EXPECT_EQ(Time(), result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedNoBackoffInteractive) {
// The UpdateCanStart policy returns false; failures are reported but this is
// an interactive update check.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
update_state.interactive = true;
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kUndefined, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_TRUE(result.do_increment_failures);
EXPECT_EQ(Time(), result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedNoBackoffDelta) {
// The UpdateCanStart policy returns false; failures are reported but this is
// a delta payload.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
update_state.is_delta_payload = true;
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kUndefined, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_TRUE(result.do_increment_failures);
EXPECT_EQ(Time(), result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedNoBackoffUnofficialBuild) {
// The UpdateCanStart policy returns false; failures are reported but this is
// an unofficial build.
SetUpdateCheckAllowed(false);
const Time curr_time = fake_clock_->GetWallclockTime();
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(10));
update_state.download_errors_max = 1;
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(8));
update_state.download_errors.emplace_back(
0,
ErrorCode::kDownloadTransferError,
curr_time - TimeDelta::FromSeconds(2));
fake_state_.system_provider()->var_is_official_build()->reset(
new bool(false));
// Check that UpdateCanStart returns false and a new backoff expiry is
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kUndefined, result.cannot_start_reason);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_TRUE(result.do_increment_failures);
EXPECT_EQ(Time(), result.backoff_expiry);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartFailsScatteringFailed) {
// The UpdateCanStart policy fails because the UpdateScattering policy it
// depends on fails (unset variable).
SetUpdateCheckAllowed(false);
// Override the default seed variable with a null value so that the policy
// request would fail.
// TODO(garnold) This failure may or may not fail a number
// sub-policies/decisions, like scattering and backoff. We'll need a more
// deliberate setup to ensure that we're failing what we want to be failing.
fake_state_.random_provider()->var_seed()->reset(nullptr);
// Check that the UpdateCanStart fails.
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kFailed, &Policy::UpdateCanStart, &result, update_state);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedScatteringNewWaitPeriodApplies) {
// The UpdateCanStart policy returns false; device policy is loaded and
// scattering applies due to an unsatisfied wait period, which was newly
// generated.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromMinutes(2)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
// Check that the UpdateCanStart returns false and a new wait period
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kScattering, result.cannot_start_reason);
EXPECT_LT(TimeDelta(), result.scatter_wait_period);
EXPECT_EQ(0, result.scatter_check_threshold);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedScatteringPrevWaitPeriodStillApplies) {
// The UpdateCanStart policy returns false w/ kAskMeAgainLater; device policy
// is loaded and a previously generated scattering period still applies, none
// of the scattering values has changed.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromMinutes(2)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
update_state.scatter_wait_period = TimeDelta::FromSeconds(35);
// Check that the UpdateCanStart returns false and a new wait period
// generated.
UpdateDownloadParams result;
ExpectPolicyStatus(EvalStatus::kAskMeAgainLater,
&Policy::UpdateCanStart,
&result,
update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kScattering, result.cannot_start_reason);
EXPECT_EQ(TimeDelta::FromSeconds(35), result.scatter_wait_period);
EXPECT_EQ(0, result.scatter_check_threshold);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedScatteringNewCountThresholdApplies) {
// The UpdateCanStart policy returns false; device policy is loaded and
// scattering applies due to an unsatisfied update check count threshold.
//
// This ensures a non-zero check threshold, which may or may not be combined
// with a non-zero wait period (for which we cannot reliably control).
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromSeconds(1)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
update_state.scatter_check_threshold_min = 2;
update_state.scatter_check_threshold_max = 5;
// Check that the UpdateCanStart returns false.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kScattering, result.cannot_start_reason);
EXPECT_LE(2, result.scatter_check_threshold);
EXPECT_GE(5, result.scatter_check_threshold);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartNotAllowedScatteringPrevCountThresholdStillApplies) {
// The UpdateCanStart policy returns false; device policy is loaded and
// scattering due to a previously generated count threshold still applies.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromSeconds(1)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
update_state.scatter_check_threshold = 3;
update_state.scatter_check_threshold_min = 2;
update_state.scatter_check_threshold_max = 5;
// Check that the UpdateCanStart returns false.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_FALSE(result.update_can_start);
EXPECT_EQ(UpdateCannotStartReason::kScattering, result.cannot_start_reason);
EXPECT_EQ(3, result.scatter_check_threshold);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedScatteringSatisfied) {
// The UpdateCanStart policy returns true; device policy is loaded and
// scattering is enabled, but both wait period and check threshold are
// satisfied.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromSeconds(120)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(75));
update_state.num_checks = 4;
update_state.scatter_wait_period = TimeDelta::FromSeconds(60);
update_state.scatter_check_threshold = 3;
update_state.scatter_check_threshold_min = 2;
update_state.scatter_check_threshold_max = 5;
// Check that the UpdateCanStart returns true.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(TimeDelta(), result.scatter_wait_period);
EXPECT_EQ(0, result.scatter_check_threshold);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_FALSE(result.do_increment_failures);
}
TEST_F(UmChromeOSPolicyTest,
UpdateCanStartAllowedInteractivePreventsScattering) {
// The UpdateCanStart policy returns true; device policy is loaded and
// scattering would have applied, except that the update check is interactive
// and so it is suppressed.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromSeconds(1)));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
update_state.interactive = true;
update_state.scatter_check_threshold = 0;
update_state.scatter_check_threshold_min = 2;
update_state.scatter_check_threshold_max = 5;
// Check that the UpdateCanStart returns true.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(TimeDelta(), result.scatter_wait_period);
EXPECT_EQ(0, result.scatter_check_threshold);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);
EXPECT_EQ(0, result.download_url_num_errors);
EXPECT_FALSE(result.do_increment_failures);
}
TEST_F(UmChromeOSPolicyTest, UpdateCanStartAllowedOobePreventsScattering) {
// The UpdateCanStart policy returns true; device policy is loaded and
// scattering would have applied, except that OOBE was not completed and so it
// is suppressed.
SetUpdateCheckAllowed(false);
fake_state_.device_policy_provider()->var_scatter_factor()->reset(
new TimeDelta(TimeDelta::FromSeconds(1)));
fake_state_.system_provider()->var_is_oobe_complete()->reset(new bool(false));
UpdateState update_state = GetDefaultUpdateState(TimeDelta::FromSeconds(1));
update_state.interactive = true;
update_state.scatter_check_threshold = 0;
update_state.scatter_check_threshold_min = 2;
update_state.scatter_check_threshold_max = 5;
// Check that the UpdateCanStart returns true.
UpdateDownloadParams result;
ExpectPolicyStatus(
EvalStatus::kSucceeded, &Policy::UpdateCanStart, &result, update_state);
EXPECT_TRUE(result.update_can_start);
EXPECT_EQ(TimeDelta(), result.scatter_wait_period);
EXPECT_EQ(0, result.scatter_check_threshold);
EXPECT_EQ(0, result.download_url_idx);
EXPECT_TRUE(result.download_url_allowed);