Bluetooth: macOS: Implement BluetoothRemoteGattCharacteristicMac::UnsubscribeFromNotifications

device/bluetooth/bluetooth_remote_gatt_characteristic_unittest.cc

 // Copyright 2015 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 <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
@@ skipping 114 matching lines @@
 #if !defined(OS_MACOSX)
     // macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
     // setNotifyValue:forCharacteristic:] which handles all interactions with
     // the CCC descriptor.
     EXPECT_EQ(1, gatt_write_descriptor_attempts_);
     EXPECT_EQ(2u, last_write_value_.size());
     uint8_t expected_byte0 = expected_config_descriptor_value & 0xFF;
     uint8_t expected_byte1 = (expected_config_descriptor_value >> 8) & 0xFF;
     EXPECT_EQ(expected_byte0, last_write_value_[0]);
     EXPECT_EQ(expected_byte1, last_write_value_[1]);
+#else
+    EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+    EXPECT_TRUE(last_notify_value);
 #endif  // !defined(OS_MACOSX)
   }
 
   BluetoothDevice* device_ = nullptr;
   BluetoothRemoteGattService* service_ = nullptr;
   BluetoothRemoteGattCharacteristic* characteristic1_ = nullptr;
   BluetoothRemoteGattCharacteristic* characteristic2_ = nullptr;
 };
 #endif
 
@@ skipping 858 matching lines @@
 
   // The expected error callback is asynchronous:
   EXPECT_EQ(0, error_callback_count_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothRemoteGattService::GATT_ERROR_NOT_SUPPORTED,
             last_gatt_error_code_);
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 
-#if defined(OS_ANDROID) || defined(OS_WIN)
+#if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 // StartNotifySession fails if the characteristic is missing the Client
 // Characteristic Configuration descriptor.
-// macOS: TODO(crbug.com/624017) Need to implement CCC descriptors.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StartNotifySession_NoConfigDescriptor) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1,
       StartNotifySetupError::CONFIG_DESCRIPTOR_MISSING));
 
   EXPECT_EQ(0, gatt_notify_characteristic_attempts_);
 
   // The expected error callback is asynchronous:
   EXPECT_EQ(0, error_callback_count_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothRemoteGattService::GATT_ERROR_NOT_SUPPORTED,
             last_gatt_error_code_);
 }
-#endif  // defined(OS_ANDROID) || defined(OS_WIN)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 
-#if defined(OS_ANDROID) || defined(OS_WIN)
+#if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 // StartNotifySession fails if the characteristic has multiple Client
 // Characteristic Configuration descriptors.
-// macOS: TODO(crbug.com/624017) Need to implement CCC descriptors.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StartNotifySession_MultipleConfigDescriptor) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1,
       StartNotifySetupError::CONFIG_DESCRIPTOR_DUPLICATE));
 
   EXPECT_EQ(0, gatt_notify_characteristic_attempts_);
 
   // The expected error callback is asynchronous:
   EXPECT_EQ(0, error_callback_count_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothRemoteGattService::GATT_ERROR_FAILED,
             last_gatt_error_code_);
 }
-#endif  // defined(OS_ANDROID) || defined(OS_WIN)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 
 #if defined(OS_ANDROID)
 // StartNotifySession fails synchronously when failing to set a characteristic
 // to enable notifications.
 // Android: This is mBluetoothGatt.setCharacteristicNotification failing.
 // macOS: Not applicable: CoreBluetooth doesn't support synchronous API.
 // Windows: Synchronous Test Not Applicable: OS calls are all made
 // asynchronously from BluetoothTaskManagerWin.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StartNotifySession_FailToSetCharacteristicNotification) {
@@ skipping 82 matching lines @@
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
-#if !defined(OS_MACOSX)
-  // TODO(crbug.com/624017): Need implementation for descriptors.
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif  // !defined(OS_MACOSX)
 
   characteristic1_->StartNotifySession(
       GetNotifyCallback(Call::EXPECTED),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   characteristic1_->StartNotifySession(
       GetNotifyCallback(Call::EXPECTED),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStarted(characteristic1_);
   base::RunLoop().RunUntilIdle();
@@ skipping 19 matching lines @@
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
-#if !defined(OS_MACOSX)
-  // TODO(crbug.com/624017): Need implementation for descriptors.
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif  // !defined(OS_MACOSX)
 
   characteristic1_->StartNotifySession(GetNotifyCallback(Call::NOT_EXPECTED),
                                        GetGattErrorCallback(Call::EXPECTED));
   characteristic1_->StartNotifySession(GetNotifyCallback(Call::NOT_EXPECTED),
                                        GetGattErrorCallback(Call::EXPECTED));
   EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStartError(
       characteristic1_, BluetoothRemoteGattService::GATT_ERROR_FAILED);
   base::RunLoop().RunUntilIdle();
@@ skipping 29 matching lines @@
 
   SimulateGattNotifySessionStarted(/* use remembered characteristic */ nullptr);
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   ASSERT_EQ(0u, notify_sessions_.size());
   EXPECT_EQ(BluetoothRemoteGattService::GATT_ERROR_FAILED,
             last_gatt_error_code_);
 }
 #endif  // defined(OS_ANDROID)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests StartNotifySession completing before chrome objects are deleted.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StartNotifySession_BeforeDeleted) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
 
   characteristic1_->StartNotifySession(
       GetNotifyCallback(Call::EXPECTED),
@@ skipping 13 matching lines @@
 
   DeleteDevice(device_);  // TODO(576906) delete only the characteristic.
 
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE("Did not crash!");
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_EQ(characteristic_identifier,
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
 #if defined(OS_MACOSX) || defined(OS_WIN)
 // Tests StartNotifySession reentrant in start notify session success callback
 // and the reentrant start notify session success.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StartNotifySession_Reentrant_Success_Success) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothGattDescriptor::ClientCharacteristicConfigurationUuid().value());
-#if !defined(OS_MACOSX)
-  // TODO(crbug.com/624017): Need implementation for descriptors.
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif  // !defined(OS_MACOSX)
 
   characteristic1_->StartNotifySession(
       GetReentrantStartNotifySessionSuccessCallback(Call::EXPECTED,
                                                     characteristic1_),
       GetReentrantStartNotifySessionErrorCallback(
           Call::NOT_EXPECTED, characteristic1_,
           false /* error_in_reentrant */));
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStarted(characteristic1_);
   EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
@@ skipping 80 matching lines @@
   // Simulate reentrant StartNotifySession request from
   // BluetoothTestBase::ReentrantStartNotifySessionErrorCallback.
   SimulateGattNotifySessionStarted(characteristic1_);
   EXPECT_EQ(0, gatt_notify_characteristic_attempts_);
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(2, error_callback_count_);
   ASSERT_EQ(0u, notify_sessions_.size());
 }
 #endif  // defined(OS_WIN)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests StopNotifySession success on a characteristic that enabled Notify.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   EXPECT_EQ(1, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(0, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+  EXPECT_FALSE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests that deleted sessions are stopped.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_SessionDeleted) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   EXPECT_EQ(1, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   notify_sessions_.clear();
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(0, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+  EXPECT_FALSE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests that deleting the sessions before the stop callbacks have been
 // invoked does not cause problems.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_SessionDeleted2) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
 
-#if !defined(OS_MACOSX)
-  // TODO(624017) enable for macosx
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif
 
   // Start notify sessions.
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(0),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(1),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStarted(characteristic1_);
@@ skipping 19 matching lines @@
 
   // Run the stop events.
   base::RunLoop().RunUntilIdle();
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
   // Check that the state is correct.
   EXPECT_TRUE("Did not crash!");
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests that cancelling StopNotifySession works.
-// TODO(crbug.com/633191): Enable on macOS when SubscribeToNotifications is
-// implemented.
 // TODO(crbug.com/636270): Enable on Windows when SubscribeToNotifications is
 // implemented.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_Cancelled) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the session is correctly setup.
   std::string characteristic_identifier = characteristic1_->GetIdentifier();
   EXPECT_EQ(characteristic_identifier,
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
 
   // Queue a Stop request.
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
 
   // Cancel Stop by deleting the device before Stop finishes.
   DeleteDevice(device_);  // TODO(576906) delete only the characteristic.
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests that deleted sessions are stopped.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_AfterDeleted) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the session is correctly setup
   std::string characteristic_identifier = characteristic1_->GetIdentifier();
   EXPECT_EQ(characteristic_identifier,
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
 
   DeleteDevice(device_);  // TODO(576906) delete only the characteristic.
 
   ResetEventCounts();
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
 
   // Check that the callback does not arrive synchronously.
   EXPECT_EQ(0, callback_count_);
 
   // Trigger the stop callback
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1, callback_count_);
 
   EXPECT_TRUE("Did not crash!");
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_EQ(characteristic_identifier,
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests StopNotifySession success on a characteristic that enabled Indicate.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_OnIndicate) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: INDICATE */ 0x20,
       /* expected_config_descriptor_value: INDICATE */ 2));
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   EXPECT_EQ(1, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(0, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+  EXPECT_FALSE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests StopNotifySession success on a characteristic that enabled Notify &
 // Indicate.
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_OnNotifyAndIndicate) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY and INDICATE bits set */ 0x30,
       /* expected_config_descriptor_value: INDICATE */ 1));
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   EXPECT_EQ(1, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(0, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+  EXPECT_FALSE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests StopNotifySession error
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_Error) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the notify session is active.
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
   EXPECT_EQ(characteristic1_->GetIdentifier(),
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 
   notify_sessions_[0]->Stop(GetStopNotifyCallback(Call::EXPECTED));
   SimulateGattNotifySessionStopError(
       characteristic1_, BluetoothRemoteGattService::GATT_ERROR_UNKNOWN);
   base::RunLoop().RunUntilIdle();
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests multiple StopNotifySession calls for a single session.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_Multiple1) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
 
-#if !defined(OS_MACOSX)
-  // TODO(624017) enable for macosx
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif
 
   // Start notify session
   characteristic1_->StartNotifySession(
       GetNotifyCallback(Call::EXPECTED),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStarted(characteristic1_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   ASSERT_EQ(1u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 
   // Stop the notify session twice
   ResetEventCounts();
   notify_sessions_[0]->Stop(GetStopNotifyCheckForPrecedingCalls(0));
   notify_sessions_[0]->Stop(GetStopNotifyCheckForPrecedingCalls(1));
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
   // Check that the notify session is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests multiple StartNotifySession calls and multiple StopNotifySession calls.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_Multiple2) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
 
-#if !defined(OS_MACOSX)
-  // TODO(624017) enable for macosx
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
-#endif
 
   // Start notify sessions
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(0),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(1),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(0, callback_count_);
   SimulateGattNotifySessionStarted(characteristic1_);
@@ skipping 19 matching lines @@
 
   notify_sessions_[0]->Stop(GetStopNotifyCheckForPrecedingCalls(3));
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
   // Check that the notify sessions is inactive.
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(notify_sessions_[1]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests starting a new notify session before the previous stop request
 // resolves.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_StopStart) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
 
   // Start notify session
   ResetEventCounts();
@@ skipping 20 matching lines @@
 
   SimulateGattNotifySessionStarted(characteristic1_);
   base::RunLoop().RunUntilIdle();
   ASSERT_EQ(2u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   ASSERT_TRUE(notify_sessions_[1]);
   EXPECT_TRUE(notify_sessions_[1]->IsActive());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_StartStopStart) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the initial notify session is active.
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
   EXPECT_EQ(characteristic1_->GetIdentifier(),
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(characteristic1_->IsNotifying());
@@ skipping 27 matching lines @@
   EXPECT_EQ(characteristic1_, notify_sessions_[1]->GetCharacteristic());
   EXPECT_TRUE(notify_sessions_[1]->IsActive());
 
   EXPECT_EQ(characteristic1_->GetIdentifier(),
             notify_sessions_[2]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[2]->GetCharacteristic());
   EXPECT_TRUE(notify_sessions_[2]->IsActive());
 
   EXPECT_TRUE(characteristic1_->IsNotifying());
 }
-#endif
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 // Tests starting a new notify session before the previous stop requests
 // resolve.
 TEST_F(BluetoothRemoteGattCharacteristicTest, StopNotifySession_StopStopStart) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
 
   // Start notify session
   ResetEventCounts();
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(0),
       GetGattErrorCallback(Call::NOT_EXPECTED));
   SimulateGattNotifySessionStarted(characteristic1_);
   base::RunLoop().RunUntilIdle();
   ASSERT_EQ(1u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   EXPECT_EQ(1, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(1, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Stop the notify session twice
   notify_sessions_[0]->Stop(GetStopNotifyCheckForPrecedingCalls(1));
   notify_sessions_[0]->Stop(GetStopNotifyCheckForPrecedingCalls(2));
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(0, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+  EXPECT_FALSE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Start another notify session
   characteristic1_->StartNotifySession(
       GetNotifyCheckForPrecedingCalls(3),
       GetGattErrorCallback(Call::NOT_EXPECTED));
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that nothing was written by the StartNotifySession call above
   EXPECT_EQ(2, gatt_write_descriptor_attempts_);
+#else
+  EXPECT_EQ(2, gatt_notify_characteristic_attempts_);
+#endif  // !defined(OS_MACOSX)
 
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
 
   SimulateGattNotifySessionStarted(characteristic1_);
   base::RunLoop().RunUntilIdle();
 
+// macOS: Not applicable. CoreBluetooth exposes -[CBPeripheral
+// setNotifyValue:forCharacteristic:] which handles all interactions with
+// the CCC descriptor.
+#if !defined(OS_MACOSX)
   // Check that the right values were written to the descriptor.
   EXPECT_EQ(3, gatt_write_descriptor_attempts_);
   ASSERT_EQ(2u, last_write_value_.size());
   EXPECT_EQ(1, last_write_value_[0]);
   EXPECT_EQ(0, last_write_value_[1]);
+#else
+  EXPECT_EQ(3, gatt_notify_characteristic_attempts_);
+  EXPECT_TRUE(last_notify_value);
+#endif  // !defined(OS_MACOSX)
 
   // Check the notify state
   ASSERT_EQ(2u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   ASSERT_TRUE(notify_sessions_[1]);
   EXPECT_TRUE(notify_sessions_[1]->IsActive());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_Reentrant_Success_Stop) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(
       FakeCharacteristicBoilerplate(/* properties: NOTIFY */ 0x10));
   SimulateGattDescriptor(
       characteristic1_,
       BluetoothRemoteGattDescriptor::ClientCharacteristicConfigurationUuid()
           .canonical_value());
   ASSERT_EQ(1u, characteristic1_->GetDescriptors().size());
 
   // Start notify session
   characteristic1_->StartNotifySession(
@@ skipping 15 matching lines @@
   ASSERT_EQ(1u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 
   SimulateGattNotifySessionStopped(characteristic1_);
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_Reentrant_Stop_StartSuccess) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the notify session is active.
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
   EXPECT_EQ(characteristic1_->GetIdentifier(),
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(characteristic1_->IsNotifying());
@@ skipping 17 matching lines @@
   base::RunLoop().RunUntilIdle();
   ASSERT_EQ(2u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   ASSERT_TRUE(notify_sessions_[1]);
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_EQ(characteristic1_, notify_sessions_[1]->GetCharacteristic());
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_TRUE(notify_sessions_[1]->IsActive());
   EXPECT_TRUE(characteristic1_->IsNotifying());
 }
-#endif
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
 TEST_F(BluetoothRemoteGattCharacteristicTest,
        StopNotifySession_Reentrant_Stop_StartError) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
       /* expected_config_descriptor_value: NOTIFY */ 1));
 
   // Check that the notify session is active.
   EXPECT_TRUE(notify_sessions_[0]->IsActive());
   EXPECT_EQ(characteristic1_->GetIdentifier(),
             notify_sessions_[0]->GetCharacteristicIdentifier());
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_TRUE(characteristic1_->IsNotifying());
@@ skipping 15 matching lines @@
 
   SimulateGattNotifySessionStartError(
       characteristic1_, BluetoothRemoteGattService::GATT_ERROR_FAILED);
   base::RunLoop().RunUntilIdle();
   ASSERT_EQ(1u, notify_sessions_.size());
   ASSERT_TRUE(notify_sessions_[0]);
   EXPECT_EQ(characteristic1_, notify_sessions_[0]->GetCharacteristic());
   EXPECT_FALSE(notify_sessions_[0]->IsActive());
   EXPECT_FALSE(characteristic1_->IsNotifying());
 }
-#endif
+#endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 // Tests Characteristic Value changes during a Notify Session.
 TEST_F(BluetoothRemoteGattCharacteristicTest, GattCharacteristicValueChanged) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(StartNotifyBoilerplate(
       /* properties: NOTIFY */ 0x10,
@@ skipping 116 matching lines @@
   EXPECT_EQ(1u, characteristic1_->GetDescriptorsByUUID(id2).size());
   EXPECT_EQ(2u, characteristic2_->GetDescriptorsByUUID(id3).size());
 
   EXPECT_EQ(0u, characteristic2_->GetDescriptorsByUUID(id1).size());
   EXPECT_EQ(0u, characteristic2_->GetDescriptorsByUUID(id2).size());
   EXPECT_EQ(0u, characteristic1_->GetDescriptorsByUUID(id3).size());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_WIN)
 
 }  // namespace device