DeviceOrientation API on ChromeOS

content/browser/device_sensors/sensor_manager_unittest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.

[timvolodine, 2014/11/06 02:53:47]

same here I think this should be sensor_manager_chromeos_unittest

[jonross, 2014/11/06 18:18:52]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/public/browser/sensor_manager.h"
+
+#include "base/memory/shared_memory.h"
+#include "base/process/process_handle.h"
+#include "content/browser/device_sensors/device_inertial_sensor_service.h"
+#include "content/browser/device_sensors/inertial_sensor_consts.h"
+#include "content/common/device_sensors/device_orientation_hardware_buffer.h"
+#include "content/public/browser/sensor_manager.h"
+#include "content/public/test/browser_test.h"
+#include "content/public/test/content_browser_test.h"
+
+namespace {
+const double kMeanGravity = 9.80665;
+}
+
+namespace content {
+
+class SensorManagerTest : public ContentBrowserTest {

[timvolodine, 2014/11/06 02:53:47]

is this a browser or unittest?
browser tests are usually end-to-end, if you only want to test sensor_manager
then a unittest seems sufficient.

[jonross, 2014/11/06 18:18:52]

Just habit from development in ash. I'll switch this to a standalone unittest.

+ public:
+  SensorManagerTest() {}
+  virtual ~SensorManagerTest() {}
+
+  DeviceOrientationHardwareBuffer* orientation_buffer() {
+    return SensorManager::GetInstance()->GetOrientationBufferForTest();

[timvolodine, 2014/11/06 02:53:47]

for unit testing you can create a buffer manually as e.g. in
sensor_manager_android_unittest.cc

[jonross, 2014/11/06 18:18:52]

Done.

+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SensorManagerTest);
+};
+
+// Tests that starting to process orientation data will create a SharedMemory,
+// and that the SensorManager can update the associated buffer.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, OrientationBuffer) {
+  DeviceInertialSensorService* service =
+      DeviceInertialSensorService::GetInstance();

[timvolodine, 2014/11/06 02:53:47]

if the purpose is to test sensor_manager then there is no need to involve
DeviceInertialSensorService. Creation of a shared memory buffer is covered in
the device_inertial_sensor_browsertest.

[jonross, 2014/11/06 18:18:52]

Done.

+  service->AddConsumer(CONSUMER_TYPE_ORIENTATION);
+
+  base::SharedMemoryHandle handle = service->GetSharedMemoryHandleForProcess(
+      CONSUMER_TYPE_ORIENTATION, base::GetCurrentProcessHandle());
+  EXPECT_TRUE(base::SharedMemory::IsHandleValid(handle));
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_TRUE(buffer->data.hasAbsolute);
+  EXPECT_FALSE(buffer->data.hasAlpha);
+  EXPECT_FALSE(buffer->data.hasBeta);
+  EXPECT_FALSE(buffer->data.hasGamma);
+  EXPECT_TRUE(buffer->data.allAvailableSensorsAreActive);
+
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(0.0f, 0.0f,
+                                                               1.0f);
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.alpha);
+  EXPECT_FALSE(buffer->data.hasAlpha);
+  EXPECT_TRUE(buffer->data.hasBeta);
+  EXPECT_TRUE(buffer->data.hasGamma);
+
+  service->RemoveConsumer(CONSUMER_TYPE_ORIENTATION);
+  EXPECT_FALSE(buffer->data.allAvailableSensorsAreActive);
+}
+
+// Tests a device resting flat.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, NeutralOrientation) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(0.0f, 0.0f,
+                                                               -kMeanGravity);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.gamma);
+}
+
+// Tests an upside-down device, such that the W3C boundary [-180,180) causes the
+// beta value to become negative.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, UpsideDown) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(0.0f, 0.0f,
+                                                               kMeanGravity);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(-180.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.gamma);
+}
+
+// Tests for positive beta value before the device is completely upside-down
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, BeforeUpsideDownBoundary) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(
+      0.0f, -kMeanGravity / 2.0f, kMeanGravity / 2.0f);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(135.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.gamma);
+}
+
+// Tests a device lying on its left-edge.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, LeftEdge) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(-kMeanGravity,
+                                                               0.0f, 0.0f);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(-90.0f, buffer->data.gamma);
+}
+
+// Tests a device lying on its right-edge, such that the W3C boundary [-90,90)
+// causes the gamma value to become negative.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, RightEdge) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(kMeanGravity,
+                                                               0.0f, 0.0f);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(-90.0f, buffer->data.gamma);
+}
+
+// Tests for positive gamma value before the device is completely on its right
+// side.
+IN_PROC_BROWSER_TEST_F(SensorManagerTest, BeforeRightEdgeBoundary) {
+  DeviceInertialSensorService::GetInstance()->AddConsumer(
+      CONSUMER_TYPE_ORIENTATION);
+  SensorManager::GetInstance()->OnAccelerationIncludingGravity(
+      kMeanGravity / 2.0f, 0.0f, -kMeanGravity / 2.0f);
+
+  DeviceOrientationHardwareBuffer* buffer = orientation_buffer();
+  EXPECT_FLOAT_EQ(0.0f, buffer->data.beta);
+  EXPECT_FLOAT_EQ(45.0f, buffer->data.gamma);
+}
+
+}  // namespace content