Add device location reporting

chrome/browser/policy/device_status_collector_unittest.cc

Index: chrome/browser/policy/device_status_collector_unittest.cc
diff --git a/chrome/browser/policy/device_status_collector_unittest.cc b/chrome/browser/policy/device_status_collector_unittest.cc
index 3dcfb3f01b1c5a36e3eba86955cddc2dac195cac..6268a21b16b2502d9d4dedf4fcadeb31eba21cf2 100644
--- a/chrome/browser/policy/device_status_collector_unittest.cc
+++ b/chrome/browser/policy/device_status_collector_unittest.cc
@@ -4,21 +4,24 @@
 
 #include "chrome/browser/policy/device_status_collector.h"
 
-#include "base/message_loop.h"
-#include "base/time.h"
-#include "chrome/browser/idle.h"
+#include "base/synchronization/waitable_event.h"
 #include "chrome/browser/chromeos/cros_settings.h"
-#include "chrome/browser/chromeos/cros_settings_names.h"
-#include "chrome/browser/chromeos/cros_settings_provider.h"
 #include "chrome/browser/chromeos/stub_cros_settings_provider.h"
 #include "chrome/browser/chromeos/system/mock_statistics_provider.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
-#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_pref_service.h"
+#include "content/browser/geolocation/arbitrator_dependency_factory.h"
+#include "content/browser/geolocation/fake_access_token_store.h"
+#include "content/browser/geolocation/geolocation_provider.h"
+#include "content/browser/geolocation/location_arbitrator.h"
+#include "content/browser/geolocation/mock_location_provider.h"
 #include "content/test/test_browser_thread.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::Invoke;
+using ::testing::WithoutArgs;
 using base::TimeDelta;
 using base::Time;
 
@@ -28,16 +31,81 @@ namespace {
 
 const int64 kMillisecondsPerDay = Time::kMicrosecondsPerDay / 1000;
 
+// Mock geolocation stack, part 1:
+// A factory that provides the GeolocationArbitrator with a mock access token
+// store and a mock network location provider which, depending on the value of
+// |has_valid_location|, simulates success or failure in acquiring a location
+// fix.
+class TestingDependencyFactory
+    : public DefaultGeolocationArbitratorDependencyFactory {
+ public:
+  explicit TestingDependencyFactory(bool has_valid_location)
+      : DefaultGeolocationArbitratorDependencyFactory(),
+        has_valid_location_(has_valid_location) { }
+
+  virtual content::AccessTokenStore* NewAccessTokenStore() OVERRIDE {
+    content::FakeAccessTokenStore* store = new content::FakeAccessTokenStore();
+    EXPECT_CALL(*store, LoadAccessTokens(_))
+        .WillRepeatedly(DoAll(
+            Invoke(store,
+                   &content::FakeAccessTokenStore::DefaultLoadAccessTokens),
+            WithoutArgs(
+                Invoke(store,
+                       &content::FakeAccessTokenStore::
+                           NotifyDelegateTokensLoaded))));
+    return store;
+  }
+
+  virtual LocationProviderBase* NewNetworkLocationProvider(
+      content::AccessTokenStore* access_token_store,
+      net::URLRequestContextGetter* context,
+      const GURL& url,
+      const string16& access_token) OVERRIDE {
+    if (has_valid_location_)
+      return NewAutoSuccessMockNetworkLocationProvider();
+    else
+      return NewAutoFailMockNetworkLocationProvider();
+  }
+
+  virtual LocationProviderBase* NewSystemLocationProvider() OVERRIDE  {
+    return NULL;
+  }
+
+  bool has_valid_location_;
+};
+
+// Mock geolocation stack, part 2:
+// A wrapper around the regular GeolocationProvider that can be constructed and
+// destructed for testing and signals when it has received a location update.
+class TestingGeolocationProvider : public GeolocationProvider {
+ public:
+  explicit TestingGeolocationProvider(base::WaitableEvent* event)
+      : GeolocationProvider(),
+        event_(event) { }
+
+  virtual ~TestingGeolocationProvider() {}
+
+  virtual void OnLocationUpdate(const Geoposition& position) OVERRIDE {
+    GeolocationProvider::OnLocationUpdate(position);
+    event_->Signal();
+  }
+
+ private:
+  base::WaitableEvent* event_;
+};
+
 class TestingDeviceStatusCollector : public policy::DeviceStatusCollector {
  public:
   TestingDeviceStatusCollector(
       PrefService* local_state,
-      chromeos::system::StatisticsProvider* provider)
-    :  policy::DeviceStatusCollector(local_state, provider),
-       local_state_(local_state) {
+      chromeos::system::StatisticsProvider* statistics_provider,
+      GeolocationProvider* geolocation_provider)
+      : policy::DeviceStatusCollector(local_state, statistics_provider) {
     // Set the baseline time to a fixed value (1 AM) to prevent test flakiness
     // due to a single activity period spanning two days.
     SetBaselineTime(Time::Now().LocalMidnight() + TimeDelta::FromHours(1));
+
+    SetGeolocationProviderForTest(geolocation_provider);
   }
 
   void Simulate(IdleState* states, int len) {
@@ -74,8 +142,6 @@ class TestingDeviceStatusCollector : public policy::DeviceStatusCollector {
   }
 
  private:
-  PrefService* local_state_;
-
   // Baseline time for the fake times returned from GetCurrentTime().
   Time baseline_time_;
 
@@ -97,7 +163,6 @@ int64 GetActiveMilliseconds(em::DeviceStatusReportRequest& status) {
 
 namespace policy {
 
-using ::testing::_;
 using ::testing::NotNull;
 using ::testing::Return;
 using ::testing::SetArgPointee;
@@ -108,30 +173,104 @@ class DeviceStatusCollectorTest : public testing::Test {
     : message_loop_(MessageLoop::TYPE_UI),
       ui_thread_(content::BrowserThread::UI, &message_loop_),
       file_thread_(content::BrowserThread::FILE, &message_loop_),
-      status_collector_(&prefs_, &statistics_provider_) {
+      io_thread_(content::BrowserThread::IO, &message_loop_),
+      event_(false, false) {
+    TestingDeviceStatusCollector::RegisterPrefs(&prefs_);
 
-    DeviceStatusCollector::RegisterPrefs(&prefs_);
     EXPECT_CALL(statistics_provider_, GetMachineStatistic(_, NotNull()))
         .WillRepeatedly(Return(false));
 
-    cros_settings_ = chromeos::CrosSettings::Get();
-
     // Remove the real DeviceSettingsProvider and replace it with a stub.
+    cros_settings_ = chromeos::CrosSettings::Get();
     device_settings_provider_ =
         cros_settings_->GetProvider(chromeos::kReportDeviceVersionInfo);
     EXPECT_TRUE(device_settings_provider_ != NULL);
     EXPECT_TRUE(
         cros_settings_->RemoveSettingsProvider(device_settings_provider_));
     cros_settings_->AddSettingsProvider(&stub_settings_provider_);
+
+    StartStatusCollector(true);
   }
 
   ~DeviceStatusCollectorTest() {
+    StopStatusCollector();
+
     // Restore the real DeviceSettingsProvider.
     EXPECT_TRUE(
       cros_settings_->RemoveSettingsProvider(&stub_settings_provider_));
     cros_settings_->AddSettingsProvider(device_settings_provider_);
   }
 
+  void GetStatus() {
+    status_.Clear();
+    status_collector_->GetStatus(&status_);
+  }
+
+  void StartStatusCollector(bool has_valid_fix) {
+    dependency_factory_ = new TestingDependencyFactory(has_valid_fix);
+    GeolocationArbitrator::SetDependencyFactoryForTest(
+        dependency_factory_.get());
+    event_.Reset();
+    geolocation_provider_.reset(new TestingGeolocationProvider(&event_));
+    status_collector_.reset(
+        new TestingDeviceStatusCollector(&prefs_,
+                                         &statistics_provider_,
+                                         geolocation_provider_.get()));
+  }
+
+  void StopStatusCollector() {
+    status_collector_.reset(NULL);
+    // Allow the DeviceStatusLocationHelper's shutdown sequence to run.
+    message_loop_.RunAllPending();
+    GeolocationArbitrator::SetDependencyFactoryForTest(NULL);
+    dependency_factory_ = NULL;
+    geolocation_provider_.reset(NULL);
+  }
+
+  void RestartStatusCollector(bool has_valid_fix) {
+    StopStatusCollector();
+    StartStatusCollector(has_valid_fix);
+  }
+
+  void CheckThatNoLocationIsReported() {
+    GetStatus();
+    EXPECT_FALSE(status_.has_device_location());
+  }
+
+  void CheckThatAValidLocationIsReported() {
+    // Checks that a location is being reported which matches the fix returned
+    // by the AutoMockLocationProvider.
+    GetStatus();
+    EXPECT_TRUE(status_.has_device_location());
+    em::DeviceLocation location = status_.device_location();
+    if (location.has_error_code())
+      EXPECT_EQ(0, location.error_code());
+    EXPECT_TRUE(location.has_latitude());
+    EXPECT_TRUE(location.has_longitude());
+    EXPECT_TRUE(location.has_accuracy());
+    EXPECT_TRUE(location.has_timestamp());
+    EXPECT_FALSE(location.has_altitude());
+    EXPECT_FALSE(location.has_altitude_accuracy());
+    EXPECT_FALSE(location.has_heading());
+    EXPECT_FALSE(location.has_speed());
+    EXPECT_FALSE(location.has_error_message());
+    EXPECT_EQ(4.3, location.latitude());
+    EXPECT_EQ(-7.8, location.longitude());
+    EXPECT_EQ(3., location.accuracy());
+    // Check that the timestamp is not older than ten minutes.
+    EXPECT_TRUE(Time::Time::Now() -
+                    base::Time::FromDoubleT(location.timestamp() / 1000.) <
+                base::TimeDelta::FromMinutes(10));
+  }
+
+  void CheckThatALocationErrorIsReported() {
+    GetStatus();
+    EXPECT_TRUE(status_.has_device_location());
+    em::DeviceLocation location = status_.device_location();
+    EXPECT_TRUE(location.has_error_code());
+    EXPECT_EQ(1, location.error_code());
+  }
+
  protected:
   // Convenience method.
   int64 ActivePeriodMilliseconds() {
@@ -141,10 +280,15 @@ class DeviceStatusCollectorTest : public testing::Test {
   MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread file_thread_;
+  content::TestBrowserThread io_thread_;
+
+  scoped_refptr<TestingDependencyFactory> dependency_factory_;
+  base::WaitableEvent event_;
+  scoped_ptr<TestingGeolocationProvider> geolocation_provider_;
 
   TestingPrefService prefs_;
   chromeos::system::MockStatisticsProvider statistics_provider_;
-  TestingDeviceStatusCollector status_collector_;
+  scoped_ptr<TestingDeviceStatusCollector> status_collector_;
   em::DeviceStatusReportRequest status_;
   chromeos::CrosSettings* cros_settings_;
   chromeos::CrosSettingsProvider* device_settings_provider_;
@@ -160,20 +304,20 @@ TEST_F(DeviceStatusCollectorTest, AllIdle) {
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
 
   // Test reporting with no data.
-  status_collector_.GetStatus(&status_);
+  GetStatus();
   EXPECT_EQ(0, status_.active_period_size());
   EXPECT_EQ(0, GetActiveMilliseconds(status_));
 
   // Test reporting with a single idle sample.
-  status_collector_.Simulate(test_states, 1);
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states, 1);
+  GetStatus();
   EXPECT_EQ(0, status_.active_period_size());
   EXPECT_EQ(0, GetActiveMilliseconds(status_));
 
   // Test reporting with multiple consecutive idle samples.
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+  GetStatus();
   EXPECT_EQ(0, status_.active_period_size());
   EXPECT_EQ(0, GetActiveMilliseconds(status_));
 }
@@ -187,16 +331,16 @@ TEST_F(DeviceStatusCollectorTest, AllActive) {
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
 
   // Test a single active sample.
-  status_collector_.Simulate(test_states, 1);
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states, 1);
+  GetStatus();
   EXPECT_EQ(1, status_.active_period_size());
   EXPECT_EQ(1 * ActivePeriodMilliseconds(), GetActiveMilliseconds(status_));
   status_.clear_active_period(); // Clear the result protobuf.
 
   // Test multiple consecutive active samples.
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+  GetStatus();
   EXPECT_EQ(1, status_.active_period_size());
   EXPECT_EQ(3 * ActivePeriodMilliseconds(), GetActiveMilliseconds(status_));
 }
@@ -212,9 +356,9 @@ TEST_F(DeviceStatusCollectorTest, MixedStates) {
     IDLE_STATE_ACTIVE
   };
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+  GetStatus();
   EXPECT_EQ(4 * ActivePeriodMilliseconds(), GetActiveMilliseconds(status_));
 }
 
@@ -228,18 +372,17 @@ TEST_F(DeviceStatusCollectorTest, StateKeptInPref) {
     IDLE_STATE_IDLE
   };
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-
-  // Process the list a second time with a different collector.
-  // It should be able to count the active periods found by the first
-  // collector, because the results are stored in a pref.
-  TestingDeviceStatusCollector second_collector(&prefs_,
-                                                &statistics_provider_);
-  second_collector.Simulate(test_states,
-                            sizeof(test_states) / sizeof(IdleState));
-
-  second_collector.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+
+  // Process the list a second time after restarting the collector. It should be
+  // able to count the active periods found by the original collector, because
+  // the results are stored in a pref.
+  RestartStatusCollector(false);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+
+  GetStatus();
   EXPECT_EQ(6 * ActivePeriodMilliseconds(), GetActiveMilliseconds(status_));
 }
 
@@ -253,9 +396,9 @@ TEST_F(DeviceStatusCollectorTest, Times) {
     IDLE_STATE_IDLE
   };
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+  GetStatus();
   EXPECT_EQ(3 * ActivePeriodMilliseconds(), GetActiveMilliseconds(status_));
 }
 
@@ -267,41 +410,41 @@ TEST_F(DeviceStatusCollectorTest, MaxStoredPeriods) {
   unsigned int max_days = 10;
 
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
-  status_collector_.set_max_stored_past_activity_days(max_days - 1);
-  status_collector_.set_max_stored_future_activity_days(1);
+  status_collector_->set_max_stored_past_activity_days(max_days - 1);
+  status_collector_->set_max_stored_future_activity_days(1);
   Time baseline = Time::Now().LocalMidnight();
 
   // Simulate 12 active periods.
   for (int i = 0; i < static_cast<int>(max_days) + 2; i++) {
-    status_collector_.Simulate(test_states,
-                               sizeof(test_states) / sizeof(IdleState));
+    status_collector_->Simulate(test_states,
+                                sizeof(test_states) / sizeof(IdleState));
     // Advance the simulated clock by a day.
     baseline += TimeDelta::FromDays(1);
-    status_collector_.SetBaselineTime(baseline);
+    status_collector_->SetBaselineTime(baseline);
   }
 
   // Check that we don't exceed the max number of periods.
-  status_collector_.GetStatus(&status_);
+  GetStatus();
   EXPECT_EQ(static_cast<int>(max_days), status_.active_period_size());
 
   // Simulate some future times.
   for (int i = 0; i < static_cast<int>(max_days) + 2; i++) {
-    status_collector_.Simulate(test_states,
-                               sizeof(test_states) / sizeof(IdleState));
+    status_collector_->Simulate(test_states,
+                                sizeof(test_states) / sizeof(IdleState));
     // Advance the simulated clock by a day.
     baseline += TimeDelta::FromDays(1);
-    status_collector_.SetBaselineTime(baseline);
+    status_collector_->SetBaselineTime(baseline);
   }
   // Set the clock back so the previous simulated times are in the future.
   baseline -= TimeDelta::FromDays(20);
-  status_collector_.SetBaselineTime(baseline);
+  status_collector_->SetBaselineTime(baseline);
 
   // Collect one more data point to trigger pruning.
-  status_collector_.Simulate(test_states, 1);
+  status_collector_->Simulate(test_states, 1);
 
   // Check that we don't exceed the max number of periods.
   status_.clear_active_period();
-  status_collector_.GetStatus(&status_);
+  GetStatus();
   EXPECT_LT(status_.active_period_size(), static_cast<int>(max_days));
 }
 
@@ -314,9 +457,9 @@ TEST_F(DeviceStatusCollectorTest, ActivityTimesDisabledByDefault) {
     IDLE_STATE_ACTIVE,
     IDLE_STATE_ACTIVE
   };
-  status_collector_.Simulate(test_states,
-                             sizeof(test_states) / sizeof(IdleState));
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states,
+                              sizeof(test_states) / sizeof(IdleState));
+  GetStatus();
   EXPECT_EQ(0, status_.active_period_size());
   EXPECT_EQ(0, GetActiveMilliseconds(status_));
 }
@@ -328,11 +471,11 @@ TEST_F(DeviceStatusCollectorTest, ActivityCrossingMidnight) {
   cros_settings_->SetBoolean(chromeos::kReportDeviceActivityTimes, true);
 
   // Set the baseline time to 10 seconds after midnight.
-  status_collector_.SetBaselineTime(
+  status_collector_->SetBaselineTime(
       Time::Now().LocalMidnight() + TimeDelta::FromSeconds(10));
 
-  status_collector_.Simulate(test_states, 1);
-  status_collector_.GetStatus(&status_);
+  status_collector_->Simulate(test_states, 1);
+  GetStatus();
   ASSERT_EQ(2, status_.active_period_size());
 
   em::ActiveTimePeriod period0 = status_.active_period(0);
@@ -354,13 +497,11 @@ TEST_F(DeviceStatusCollectorTest, ActivityCrossingMidnight) {
 
 TEST_F(DeviceStatusCollectorTest, DevSwitchBootMode) {
   // Test that boot mode data is not reported if the pref is not turned on.
-  status_collector_.GetStatus(&status_);
-  EXPECT_EQ(false, status_.has_boot_mode());
-
   EXPECT_CALL(statistics_provider_,
               GetMachineStatistic("devsw_boot", NotNull()))
       .WillRepeatedly(DoAll(SetArgPointee<1>("0"), Return(true)));
-  EXPECT_EQ(false, status_.has_boot_mode());
+  GetStatus();
+  EXPECT_FALSE(status_.has_boot_mode());
 
   // Turn the pref on, and check that the status is reported iff the
   // statistics provider returns valid data.
@@ -369,41 +510,41 @@ TEST_F(DeviceStatusCollectorTest, DevSwitchBootMode) {
   EXPECT_CALL(statistics_provider_,
               GetMachineStatistic("devsw_boot", NotNull()))
       .WillOnce(DoAll(SetArgPointee<1>("(error)"), Return(true)));
-  status_collector_.GetStatus(&status_);
-  EXPECT_EQ(false, status_.has_boot_mode());
+  GetStatus();
+  EXPECT_FALSE(status_.has_boot_mode());
 
   EXPECT_CALL(statistics_provider_,
               GetMachineStatistic("devsw_boot", NotNull()))
       .WillOnce(DoAll(SetArgPointee<1>(" "), Return(true)));
-  status_collector_.GetStatus(&status_);
-  EXPECT_EQ(false, status_.has_boot_mode());
+  GetStatus();
+  EXPECT_FALSE(status_.has_boot_mode());
 
   EXPECT_CALL(statistics_provider_,
               GetMachineStatistic("devsw_boot", NotNull()))
       .WillOnce(DoAll(SetArgPointee<1>("0"), Return(true)));
-  status_collector_.GetStatus(&status_);
+  GetStatus();
   EXPECT_EQ("Verified", status_.boot_mode());
 
   EXPECT_CALL(statistics_provider_,
               GetMachineStatistic("devsw_boot", NotNull()))
       .WillOnce(DoAll(SetArgPointee<1>("1"), Return(true)));
-  status_collector_.GetStatus(&status_);
+  GetStatus();
   EXPECT_EQ("Dev", status_.boot_mode());
 }
 
 TEST_F(DeviceStatusCollectorTest, VersionInfo) {
   // When the pref to collect this data is not enabled, expect that none of
   // the fields are present in the protobuf.
-  status_collector_.GetStatus(&status_);
-  EXPECT_EQ(false, status_.has_browser_version());
-  EXPECT_EQ(false, status_.has_os_version());
-  EXPECT_EQ(false, status_.has_firmware_version());
+  GetStatus();
+  EXPECT_FALSE(status_.has_browser_version());
+  EXPECT_FALSE(status_.has_os_version());
+  EXPECT_FALSE(status_.has_firmware_version());
 
   cros_settings_->SetBoolean(chromeos::kReportDeviceVersionInfo, true);
-  status_collector_.GetStatus(&status_);
-  EXPECT_EQ(true, status_.has_browser_version());
-  EXPECT_EQ(true, status_.has_os_version());
-  EXPECT_EQ(true, status_.has_firmware_version());
+  GetStatus();
+  EXPECT_TRUE(status_.has_browser_version());
+  EXPECT_TRUE(status_.has_os_version());
+  EXPECT_TRUE(status_.has_firmware_version());
 
   // Check that the browser version is not empty. OS version & firmware
   // don't have any reasonable values inside the unit test, so those
@@ -411,4 +552,54 @@ TEST_F(DeviceStatusCollectorTest, VersionInfo) {
   EXPECT_NE("", status_.browser_version());
 }
 
+
+TEST_F(DeviceStatusCollectorTest, Location) {
+  // Check that when device location reporting is disabled, no location is
+  // reported.
+  CheckThatNoLocationIsReported();
+
+  // Check that when device location reporting is enabled and the geolocation
+  // stack returns a valid fix, the location is reported.
+  cros_settings_->SetBoolean(chromeos::kReportDeviceLocation, true);
+  // Allow the geolocation stack to start up.
+  message_loop_.RunAllPending();
+  // Wait for success in acquiring a location fix to be returned on the
+  // geolocation thread.
+  event_.Wait();
+  // Allow the result to propagate to the UI thread.
+  message_loop_.RunAllPending();
+
+  CheckThatAValidLocationIsReported();
+
+  // Restart the status collector with a mock GeolocationProvider that returns
+  // no valid fix. Check that the last known location was stored in local state
+  // and is reported instead.
+  RestartStatusCollector(false);
+  CheckThatAValidLocationIsReported();
+
+  // Check that after disabling location reporting again, the last known
+  // location has been celared from local state and is no longer reported.
+  cros_settings_->SetBoolean(chromeos::kReportDeviceLocation, false);
+  // Allow the new pref to propagate to the status collector.
+  message_loop_.RunAllPending();
+
+  EXPECT_TRUE(prefs_.GetDictionary(prefs::kDeviceLocation)->empty());
+
+  CheckThatNoLocationIsReported();
+
+  // Check that after enabling location reporting again, an error is reported
+  // since the location is unknown.
+  cros_settings_->SetBoolean(chromeos::kReportDeviceLocation, true);
+  // Allow the new pref to propagate to the status collector and the geolocation
+  // stack to start up..
+  message_loop_.RunAllPending();
+  // Wait for failure in acquiring a location fix to be returned on the
+  // geolocation thread.
+  event_.Wait();
+  // Allow the result to propagate to the UI thread.
+  message_loop_.RunAllPending();
+
+  CheckThatALocationErrorIsReported();
+}
+
 }  // namespace policy