Implement Android shared memory data fetcher for Device Motion.

content/browser/device_orientation/data_fetcher_impl_android_unittest.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/android/jni_android.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/process_util.h"
+#include "content/browser/device_orientation/data_fetcher_impl_android.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace content {
+
+namespace {
+
+class MockDataFetcherImplAndroid : public DataFetcherImplAndroid {
+ public:
+  MockDataFetcherImplAndroid() { }
+  virtual ~MockDataFetcherImplAndroid() { }
+
+  virtual bool Start(DeviceData::Type event_type,
+      int rate_in_milliseconds) OVERRIDE {
+    return true;
+  }
+
+  virtual int GetNumberActiveDeviceMotionSensors() OVERRIDE {
+    return number_active_sensors_;
+  }
+
+  void SetNumberActiveDeviceMotionSensors(int numberActiveSensors) {
+    number_active_sensors_ = numberActiveSensors;
+  }
+
+ private:
+  int number_active_sensors_;
+};
+
+class AndroidDataFetcherTest : public testing::Test {
+ public:
+ protected:
+  AndroidDataFetcherTest() {
+    buffer_.reset(new DeviceMotionHardwareBuffer);
+  }
+
+  scoped_ptr<DeviceMotionHardwareBuffer> buffer_;
+};
+
+TEST_F(AndroidDataFetcherTest, ThreeDeviceMotionSensorsActive) {
+  MockDataFetcherImplAndroid::Init(base::android::AttachCurrentThread());
+  MockDataFetcherImplAndroid fetcher;
+  fetcher.SetNumberActiveDeviceMotionSensors(3);
+  fetcher.StartFetchingDeviceMotionData(buffer_.get());
+
+  ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);
+  fetcher.GotAcceleration(0, 0, 1, 2, 3);
+
+  ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);
+  fetcher.GotAccelerationIncludingGravity(0, 0, 1, 2, 3);
+
+  ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);
+  fetcher.GotRotationRate(0, 0, 1, 2, 3);
+
+  ASSERT_TRUE(buffer_->data.allAvailableSensorsAreActive);
+
+  fetcher.StopFetchingDeviceMotionData();

[bulach, 2013/07/04 08:23:36]

nit: for completeness, could add this after the Stop call in these tests..

 ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);

[timvolodine, 2013/07/04 12:02:52]

Done.

+}
+
+TEST_F(AndroidDataFetcherTest, TwoDeviceMotionSensorsActive) {
+  MockDataFetcherImplAndroid::Init(base::android::AttachCurrentThread());
+  MockDataFetcherImplAndroid fetcher;
+  fetcher.SetNumberActiveDeviceMotionSensors(2);
+  fetcher.StartFetchingDeviceMotionData(buffer_.get());
+
+  ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);
+  fetcher.GotAcceleration(0, 0, 1, 2, 3);
+
+  ASSERT_FALSE(buffer_->data.allAvailableSensorsAreActive);
+  fetcher.GotAccelerationIncludingGravity(0, 0, 1, 2, 3);
+
+  ASSERT_TRUE(buffer_->data.allAvailableSensorsAreActive);
+
+  fetcher.StopFetchingDeviceMotionData();
+}
+
+TEST_F(AndroidDataFetcherTest, ZeroDeviceMotionSensorsActive) {
+  MockDataFetcherImplAndroid::Init(base::android::AttachCurrentThread());
+  MockDataFetcherImplAndroid fetcher;
+  fetcher.SetNumberActiveDeviceMotionSensors(0);
+  fetcher.StartFetchingDeviceMotionData(buffer_.get());
+
+  ASSERT_TRUE(buffer_->data.allAvailableSensorsAreActive);
+
+  fetcher.StopFetchingDeviceMotionData();
+}
+
+}  // namespace
+
+}  // namespace content