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//
// Copyright 2015 Google, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include <base/macros.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "service/gatt_client.h"
#include "service/hal/fake_bluetooth_gatt_interface.h"
using ::testing::_;
using ::testing::Return;
namespace bluetooth {
namespace {
class MockGattHandler
: public hal::FakeBluetoothGattInterface::TestClientHandler {
public:
MockGattHandler() = default;
~MockGattHandler() override = default;
MOCK_METHOD1(RegisterClient, bt_status_t(const bluetooth::Uuid&));
MOCK_METHOD1(UnregisterClient, bt_status_t(int));
MOCK_METHOD1(Scan, bt_status_t(bool));
MOCK_METHOD4(Connect, bt_status_t(int, const RawAddress&, bool, int));
MOCK_METHOD3(Disconnect, bt_status_t(int, const RawAddress&, int));
private:
DISALLOW_COPY_AND_ASSIGN(MockGattHandler);
};
class GattClientTest : public ::testing::Test {
public:
GattClientTest() = default;
~GattClientTest() override = default;
void SetUp() override {
// Only set |mock_handler_| if a previous test case hasn't set it.
if (!mock_handler_) mock_handler_.reset(new MockGattHandler());
fake_hal_gatt_iface_ = new hal::FakeBluetoothGattInterface(
nullptr, nullptr,
std::static_pointer_cast<
hal::FakeBluetoothGattInterface::TestClientHandler>(mock_handler_),
nullptr);
hal::BluetoothGattInterface::InitializeForTesting(fake_hal_gatt_iface_);
factory_.reset(new GattClientFactory());
}
void TearDown() override {
factory_.reset();
hal::BluetoothGattInterface::CleanUp();
}
protected:
hal::FakeBluetoothGattInterface* fake_hal_gatt_iface_;
std::shared_ptr<MockGattHandler> mock_handler_;
std::unique_ptr<GattClientFactory> factory_;
private:
DISALLOW_COPY_AND_ASSIGN(GattClientTest);
};
TEST_F(GattClientTest, RegisterInstance) {
EXPECT_CALL(*mock_handler_, RegisterClient(_))
.Times(2)
.WillOnce(Return(BT_STATUS_FAIL))
.WillOnce(Return(BT_STATUS_SUCCESS));
// These will be asynchronously populated with a result when the callback
// executes.
BLEStatus status = BLE_STATUS_SUCCESS;
Uuid cb_uuid;
std::unique_ptr<GattClient> client;
int callback_count = 0;
auto callback = [&](BLEStatus in_status, const Uuid& uuid,
std::unique_ptr<BluetoothInstance> in_client) {
status = in_status;
cb_uuid = uuid;
client = std::unique_ptr<GattClient>(
static_cast<GattClient*>(in_client.release()));
callback_count++;
};
Uuid uuid0 = Uuid::GetRandom();
// HAL returns failure.
EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
EXPECT_EQ(0, callback_count);
// HAL returns success.
EXPECT_TRUE(factory_->RegisterInstance(uuid0, callback));
EXPECT_EQ(0, callback_count);
// Calling twice with the same Uuid should fail with no additional call into
// the stack.
EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
// Call with a different Uuid while one is pending.
Uuid uuid1 = Uuid::GetRandom();
EXPECT_CALL(*mock_handler_, RegisterClient(_))
.Times(1)
.WillOnce(Return(BT_STATUS_SUCCESS));
EXPECT_TRUE(factory_->RegisterInstance(uuid1, callback));
// Trigger callback with an unknown Uuid. This should get ignored.
Uuid uuid2 = Uuid::GetRandom();
fake_hal_gatt_iface_->NotifyRegisterClientCallback(0, 0, uuid2);
EXPECT_EQ(0, callback_count);
// |uuid0| succeeds.
int client_id0 = 2; // Pick something that's not 0.
fake_hal_gatt_iface_->NotifyRegisterClientCallback(BT_STATUS_SUCCESS,
client_id0, uuid0);
EXPECT_EQ(1, callback_count);
ASSERT_TRUE(client.get() != nullptr); // Assert to terminate in case of error
EXPECT_EQ(BLE_STATUS_SUCCESS, status);
EXPECT_EQ(client_id0, client->GetInstanceId());
EXPECT_EQ(uuid0, client->GetAppIdentifier());
EXPECT_EQ(uuid0, cb_uuid);
// The client should unregister itself when deleted.
EXPECT_CALL(*mock_handler_, UnregisterClient(client_id0))
.Times(1)
.WillOnce(Return(BT_STATUS_SUCCESS));
client.reset();
testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
// |uuid1| fails.
int client_id1 = 3;
fake_hal_gatt_iface_->NotifyRegisterClientCallback(BT_STATUS_FAIL, client_id1,
uuid1);
EXPECT_EQ(2, callback_count);
ASSERT_TRUE(client.get() == nullptr); // Assert to terminate in case of error
EXPECT_EQ(BLE_STATUS_FAILURE, status);
EXPECT_EQ(uuid1, cb_uuid);
}
} // namespace
} // namespace bluetooth
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