Remove DeviceLightEvent implementation

device/sensors/data_fetcher_shared_memory_base_unittest.cc

 // 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 "device/sensors/data_fetcher_shared_memory_base.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/process/process_handle.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
-#include "device/sensors/public/cpp/device_light_hardware_buffer.h"
 #include "device/sensors/public/cpp/device_motion_hardware_buffer.h"
 #include "device/sensors/public/cpp/device_orientation_hardware_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace device {
 
 namespace {
 
 class FakeDataFetcher : public DataFetcherSharedMemoryBase {
  public:
   FakeDataFetcher()
-      : start_light_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
-                     base::WaitableEvent::InitialState::NOT_SIGNALED),
-        start_motion_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
+      : start_motion_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                       base::WaitableEvent::InitialState::NOT_SIGNALED),
         start_orientation_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                            base::WaitableEvent::InitialState::NOT_SIGNALED),
         start_orientation_absolute_(
             base::WaitableEvent::ResetPolicy::AUTOMATIC,
             base::WaitableEvent::InitialState::NOT_SIGNALED),
-        stop_light_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
-                    base::WaitableEvent::InitialState::NOT_SIGNALED),
         stop_motion_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                      base::WaitableEvent::InitialState::NOT_SIGNALED),
         stop_orientation_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                           base::WaitableEvent::InitialState::NOT_SIGNALED),
         stop_orientation_absolute_(
             base::WaitableEvent::ResetPolicy::AUTOMATIC,
             base::WaitableEvent::InitialState::NOT_SIGNALED),
-        updated_light_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
-                       base::WaitableEvent::InitialState::NOT_SIGNALED),
         updated_motion_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                         base::WaitableEvent::InitialState::NOT_SIGNALED),
         updated_orientation_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                              base::WaitableEvent::InitialState::NOT_SIGNALED),
         updated_orientation_absolute_(
             base::WaitableEvent::ResetPolicy::AUTOMATIC,
             base::WaitableEvent::InitialState::NOT_SIGNALED),
-        light_buffer_(nullptr),
         motion_buffer_(nullptr),
         orientation_buffer_(nullptr),
         orientation_absolute_buffer_(nullptr) {}
   ~FakeDataFetcher() override { Shutdown(); }
 
   bool Init(ConsumerType consumer_type, void* buffer) {
     EXPECT_TRUE(buffer);
 
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer);
         break;
       case CONSUMER_TYPE_ORIENTATION:
         orientation_buffer_ =
             static_cast<DeviceOrientationHardwareBuffer*>(buffer);
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         orientation_absolute_buffer_ =
             static_cast<DeviceOrientationHardwareBuffer*>(buffer);
         break;
-      case CONSUMER_TYPE_LIGHT:
-        light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer);
-        break;
       default:
         return false;
     }
     return true;
   }
 
-  void UpdateLight() {
-    DeviceLightHardwareBuffer* buffer = GetLightBuffer();
-    ASSERT_TRUE(buffer);
-    buffer->seqlock.WriteBegin();
-    buffer->data.value = 100;
-    buffer->seqlock.WriteEnd();
-    updated_light_.Signal();
-  }
-
   void UpdateMotion() {
     DeviceMotionHardwareBuffer* buffer = GetMotionBuffer();
     ASSERT_TRUE(buffer);
     buffer->seqlock.WriteBegin();
     buffer->data.interval = kDeviceSensorIntervalMicroseconds / 1000.;
     buffer->seqlock.WriteEnd();
     updated_motion_.Signal();
   }
 
   void UpdateOrientation() {
     DeviceOrientationHardwareBuffer* buffer = GetOrientationBuffer();
     ASSERT_TRUE(buffer);
     buffer->seqlock.WriteBegin();
     buffer->data.alpha = 1;
     buffer->seqlock.WriteEnd();
     updated_orientation_.Signal();
   }
 
   void UpdateOrientationAbsolute() {
     DeviceOrientationHardwareBuffer* buffer = GetOrientationAbsoluteBuffer();
     ASSERT_TRUE(buffer);
     buffer->seqlock.WriteBegin();
     buffer->data.alpha = 1;
     buffer->data.absolute = true;
     buffer->seqlock.WriteEnd();
     updated_orientation_absolute_.Signal();
   }
 
-  DeviceLightHardwareBuffer* GetLightBuffer() const { return light_buffer_; }
-
   DeviceMotionHardwareBuffer* GetMotionBuffer() const { return motion_buffer_; }
 
   DeviceOrientationHardwareBuffer* GetOrientationBuffer() const {
     return orientation_buffer_;
   }
 
   DeviceOrientationHardwareBuffer* GetOrientationAbsoluteBuffer() const {
     return orientation_absolute_buffer_;
   }
 
   void WaitForStart(ConsumerType consumer_type) {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         start_motion_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         start_orientation_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         start_orientation_absolute_.Wait();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        start_light_.Wait();
-        break;
     }
   }
 
   void WaitForStop(ConsumerType consumer_type) {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stop_motion_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         stop_orientation_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         stop_orientation_absolute_.Wait();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        stop_light_.Wait();
-        break;
     }
   }
 
   void WaitForUpdate(ConsumerType consumer_type) {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         updated_motion_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         updated_orientation_.Wait();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         updated_orientation_absolute_.Wait();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        updated_light_.Wait();
-        break;
     }
   }
 
  protected:
-  base::WaitableEvent start_light_;
   base::WaitableEvent start_motion_;
   base::WaitableEvent start_orientation_;
   base::WaitableEvent start_orientation_absolute_;
-  base::WaitableEvent stop_light_;
   base::WaitableEvent stop_motion_;
   base::WaitableEvent stop_orientation_;
   base::WaitableEvent stop_orientation_absolute_;
-  base::WaitableEvent updated_light_;
   base::WaitableEvent updated_motion_;
   base::WaitableEvent updated_orientation_;
   base::WaitableEvent updated_orientation_absolute_;
 
  private:
-  DeviceLightHardwareBuffer* light_buffer_;
   DeviceMotionHardwareBuffer* motion_buffer_;
   DeviceOrientationHardwareBuffer* orientation_buffer_;
   DeviceOrientationHardwareBuffer* orientation_absolute_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeDataFetcher);
 };
 
 class FakeNonPollingDataFetcher : public FakeDataFetcher {
  public:
   FakeNonPollingDataFetcher() : update_(true) {}
@@ skipping 10 matching lines @@
       case CONSUMER_TYPE_ORIENTATION:
         if (update_)
           UpdateOrientation();
         start_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         if (update_)
           UpdateOrientationAbsolute();
         start_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        if (update_)
-          UpdateLight();
-        start_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   bool Stop(ConsumerType consumer_type) override {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stop_motion_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         stop_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         stop_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        stop_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called, "
            << "because this is a non-polling fetcher";
   }
@@ skipping 20 matching lines @@
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         start_motion_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         start_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         start_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        start_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   bool Stop(ConsumerType consumer_type) override {
     EXPECT_TRUE(
         GetPollingMessageLoop()->task_runner()->BelongsToCurrentThread());
 
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stop_motion_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         stop_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         stop_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        stop_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   void Fetch(unsigned consumer_bitmask) override {
     EXPECT_TRUE(
         GetPollingMessageLoop()->task_runner()->BelongsToCurrentThread());
     EXPECT_TRUE(consumer_bitmask & CONSUMER_TYPE_ORIENTATION ||
                 consumer_bitmask & CONSUMER_TYPE_ORIENTATION_ABSOLUTE ||
-                consumer_bitmask & CONSUMER_TYPE_MOTION ||
-                consumer_bitmask & CONSUMER_TYPE_LIGHT);
+                consumer_bitmask & CONSUMER_TYPE_MOTION);
 
     if (consumer_bitmask & CONSUMER_TYPE_ORIENTATION)
       UpdateOrientation();
     if (consumer_bitmask & CONSUMER_TYPE_ORIENTATION_ABSOLUTE)
       UpdateOrientationAbsolute();
     if (consumer_bitmask & CONSUMER_TYPE_MOTION)
       UpdateMotion();
-    if (consumer_bitmask & CONSUMER_TYPE_LIGHT)
-      UpdateLight();
   }
 
   FetcherType GetType() const override { return FETCHER_TYPE_POLLING_CALLBACK; }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakePollingDataFetcher);
 };
 
 class FakeZeroDelayPollingDataFetcher : public FakeDataFetcher {
  public:
   FakeZeroDelayPollingDataFetcher() {}
   ~FakeZeroDelayPollingDataFetcher() override {}
 
   bool Start(ConsumerType consumer_type, void* buffer) override {
     EXPECT_TRUE(
         GetPollingMessageLoop()->task_runner()->BelongsToCurrentThread());
 
     Init(consumer_type, buffer);
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         start_motion_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         start_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         start_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        start_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   bool Stop(ConsumerType consumer_type) override {
     EXPECT_TRUE(
         GetPollingMessageLoop()->task_runner()->BelongsToCurrentThread());
 
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stop_motion_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION:
         stop_orientation_.Signal();
         break;
       case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
         stop_orientation_absolute_.Signal();
         break;
-      case CONSUMER_TYPE_LIGHT:
-        stop_light_.Signal();
-        break;
       default:
         return false;
     }
     return true;
   }
 
   void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called";
   }
 
@@ skipping 46 matching lines @@
       CONSUMER_TYPE_ORIENTATION_ABSOLUTE));
   fake_data_fetcher.WaitForStart(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
 
   EXPECT_EQ(1, fake_data_fetcher.GetOrientationAbsoluteBuffer()->data.alpha);
   EXPECT_TRUE(fake_data_fetcher.GetOrientationAbsoluteBuffer()->data.absolute);
 
   fake_data_fetcher.StopFetchingDeviceData(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
   fake_data_fetcher.WaitForStop(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
 }
 
-TEST(DataFetcherSharedMemoryBaseTest, DoesStartLight) {
-  FakeNonPollingDataFetcher fake_data_fetcher;
-  EXPECT_EQ(DataFetcherSharedMemoryBase::FETCHER_TYPE_DEFAULT,
-            fake_data_fetcher.GetType());
-
-  EXPECT_TRUE(fake_data_fetcher.StartFetchingDeviceData(CONSUMER_TYPE_LIGHT));
-  fake_data_fetcher.WaitForStart(CONSUMER_TYPE_LIGHT);
-
-  EXPECT_EQ(100, fake_data_fetcher.GetLightBuffer()->data.value);
-
-  fake_data_fetcher.StopFetchingDeviceData(CONSUMER_TYPE_LIGHT);
-  fake_data_fetcher.WaitForStop(CONSUMER_TYPE_LIGHT);
-}
-
 TEST(DataFetcherSharedMemoryBaseTest, DoesPollMotion) {
   FakePollingDataFetcher fake_data_fetcher;
   EXPECT_EQ(DataFetcherSharedMemoryBase::FETCHER_TYPE_POLLING_CALLBACK,
             fake_data_fetcher.GetType());
 
   EXPECT_TRUE(fake_data_fetcher.StartFetchingDeviceData(CONSUMER_TYPE_MOTION));
   fake_data_fetcher.WaitForStart(CONSUMER_TYPE_MOTION);
   fake_data_fetcher.WaitForUpdate(CONSUMER_TYPE_MOTION);
 
   EXPECT_EQ(kDeviceSensorIntervalMicroseconds / 1000.,
@@ skipping 29 matching lines @@
   fake_data_fetcher.WaitForStart(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
   fake_data_fetcher.WaitForUpdate(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
 
   EXPECT_EQ(1, fake_data_fetcher.GetOrientationAbsoluteBuffer()->data.alpha);
   EXPECT_TRUE(fake_data_fetcher.GetOrientationAbsoluteBuffer()->data.absolute);
 
   fake_data_fetcher.StopFetchingDeviceData(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
   fake_data_fetcher.WaitForStop(CONSUMER_TYPE_ORIENTATION_ABSOLUTE);
 }
 
-TEST(DataFetcherSharedMemoryBaseTest, DoesPollLight) {
-  FakePollingDataFetcher fake_data_fetcher;
-  EXPECT_EQ(DataFetcherSharedMemoryBase::FETCHER_TYPE_POLLING_CALLBACK,
-            fake_data_fetcher.GetType());
-
-  EXPECT_TRUE(fake_data_fetcher.StartFetchingDeviceData(CONSUMER_TYPE_LIGHT));
-  fake_data_fetcher.WaitForStart(CONSUMER_TYPE_LIGHT);
-  fake_data_fetcher.WaitForUpdate(CONSUMER_TYPE_LIGHT);
-
-  EXPECT_EQ(100, fake_data_fetcher.GetLightBuffer()->data.value);
-
-  fake_data_fetcher.StopFetchingDeviceData(CONSUMER_TYPE_LIGHT);
-  fake_data_fetcher.WaitForStop(CONSUMER_TYPE_LIGHT);
-}
-
 TEST(DataFetcherSharedMemoryBaseTest, DoesPollMotionAndOrientation) {
   FakePollingDataFetcher fake_data_fetcher;
   EXPECT_EQ(DataFetcherSharedMemoryBase::FETCHER_TYPE_POLLING_CALLBACK,
             fake_data_fetcher.GetType());
 
   EXPECT_TRUE(
       fake_data_fetcher.StartFetchingDeviceData(CONSUMER_TYPE_ORIENTATION));
   mojo::ScopedSharedBufferHandle handle_orientation =
       fake_data_fetcher.GetSharedMemoryHandle(CONSUMER_TYPE_ORIENTATION);
   EXPECT_TRUE(handle_orientation.is_valid());
@@ skipping 51 matching lines @@
       fake_data_fetcher.StartFetchingDeviceData(CONSUMER_TYPE_ORIENTATION));
   fake_data_fetcher.WaitForStart(CONSUMER_TYPE_ORIENTATION);
   EXPECT_EQ(0, fake_data_fetcher.GetOrientationBuffer()->data.alpha);
   fake_data_fetcher.StopFetchingDeviceData(CONSUMER_TYPE_ORIENTATION);
   fake_data_fetcher.WaitForStop(CONSUMER_TYPE_ORIENTATION);
 }
 
 }  // namespace
 
 }  // namespace device