nfc/1.0/vts/functional/VtsHalNfcV1_0TargetTest.cpp

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.
 */

#define LOG_TAG "nfc_hidl_hal_test"
#include <android-base/logging.h>

#include <android/hardware/nfc/1.0/INfc.h>
#include <android/hardware/nfc/1.0/INfcClientCallback.h>
#include <android/hardware/nfc/1.0/types.h>
#include <hardware/nfc.h>

#include <VtsHalHidlTargetCallbackBase.h>
#include <VtsHalHidlTargetTestBase.h>

using ::android::hardware::nfc::V1_0::INfc;
using ::android::hardware::nfc::V1_0::INfcClientCallback;
using ::android::hardware::nfc::V1_0::NfcEvent;
using ::android::hardware::nfc::V1_0::NfcStatus;
using ::android::hardware::nfc::V1_0::NfcData;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::hidl_vec;
using ::android::sp;

/* NCI Commands */
#define CORE_RESET_CMD \
  { 0x20, 0x00, 0x01, 0x00 }
#define CORE_RESET_CMD_CONFIG_RESET \
  { 0x20, 0x00, 0x01, 0x01 }
#define CORE_CONN_CREATE_CMD \
  { 0x20, 0x04, 0x02, 0x01, 0x00 }
#define CORE_INIT_CMD \
    { 0x20, 0x01, 0x00 }
#define INVALID_COMMAND \
  { 0x20, 0x00, 0x00 }
#define FAULTY_DATA_PACKET \
  { 0x00, 0x00, 0xFF }

#define LOOP_BACK_HEADER_SIZE 3
#define SYNTAX_ERROR 5
#define NUMBER_LOOPS 3922
#define NCI_VERSION_1_1 0x11
#define NCI_VERSION_2 0x20
#define TIMEOUT_PERIOD 5

constexpr char kCallbackNameSendEvent[] = "sendEvent";
constexpr char kCallbackNameSendData[] = "sendData";

class NfcClientCallbackArgs {
   public:
    NfcEvent last_event_;
    NfcStatus last_status_;
    NfcData last_data_;
};

/* Callback class for data & Event. */
class NfcClientCallback
    : public ::testing::VtsHalHidlTargetCallbackBase<NfcClientCallbackArgs>,
      public INfcClientCallback {
   public:
    virtual ~NfcClientCallback() = default;

    /* sendEvent callback function - Records the Event & Status
     * and notifies the TEST
     **/
    Return<void> sendEvent(NfcEvent event, NfcStatus event_status) override {
        NfcClientCallbackArgs args;
        args.last_event_ = event;
        args.last_status_ = event_status;
        NotifyFromCallback(kCallbackNameSendEvent, args);
        return Void();
    };

    /* sendData callback function. Records the data and notifies the TEST*/
    Return<void> sendData(const NfcData& data) override {
        NfcClientCallbackArgs args;
        args.last_data_ = data;
        NotifyFromCallback(kCallbackNameSendData, args);
        return Void();
    };
};

// The main test class for NFC HIDL HAL.
class NfcHidlTest : public ::testing::VtsHalHidlTargetTestBase {
 public:
  virtual void SetUp() override {
    nfc_ = ::testing::VtsHalHidlTargetTestBase::getService<INfc>();
    ASSERT_NE(nfc_, nullptr);

    nfc_cb_ = new NfcClientCallback();
    ASSERT_NE(nfc_cb_, nullptr);

    EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
    // Wait for OPEN_CPLT event
    auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
    EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

    /* Get the NCI version that the device supports */
    std::vector<uint8_t> cmd = CORE_RESET_CMD;
    NfcData data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_RESET_RSP
    res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_GE(6ul, res.args->last_data_.size());
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
    if (res.args->last_data_.size() == 6) {
        nci_version = res.args->last_data_[4];
    } else {
        EXPECT_EQ(4ul, res.args->last_data_.size());
        nci_version = NCI_VERSION_2;
        res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res.no_timeout);
    }

    /*
     * Close the hal and then re-open to make sure we are in a predictable
     * state for all the tests.
     */
    EXPECT_EQ(NfcStatus::OK, nfc_->close());
    // Wait for CLOSE_CPLT event
    res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
    EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

    EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
    // Wait for OPEN_CPLT event
    res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
    EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
  }

  virtual void TearDown() override {
    EXPECT_EQ(NfcStatus::OK, nfc_->close());
    // Wait for CLOSE_CPLT event
    auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
    EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
  }

  /* NCI version the device supports
   * 0x11 for NCI 1.1, 0x20 for NCI 2.0 and so forth */
  uint8_t nci_version;
  sp<INfc> nfc_;
  sp<NfcClientCallback> nfc_cb_;
};

// A class for test environment setup (kept since this file is a template).
class NfcHidlEnvironment : public ::testing::Environment {
 public:
  virtual void SetUp() {}
  virtual void TearDown() {}

 private:
};

/*
 * OpenAndClose:
 * Makes an open call, waits for NfcEvent.OPEN_CPLT
 * Immediately calls close() and waits for NfcEvent.CLOSE_CPLT
 * Since open and close calls are a part of SetUp() and TearDown(),
 * the function definition is intentionally kept empty
 */
TEST_F(NfcHidlTest, OpenAndClose) {}

/*
 * WriteCoreReset:
 * Sends CORE_RESET_CMD
 * Waits for CORE_RESET_RSP
 * Checks the status, version number and configuration status
 */
TEST_F(NfcHidlTest, WriteCoreReset) {
  std::vector<uint8_t> cmd = CORE_RESET_CMD;
  NfcData data = cmd;
  EXPECT_EQ(data.size(), nfc_->write(data));
  // Wait for CORE_RESET_RSP
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
  EXPECT_TRUE(res.no_timeout);

  /* The response/notification format for CORE_RESET_CMD differs
   * with NCI 1.0 and 2.0. */
  if (nci_version <= NCI_VERSION_1_1) {
      EXPECT_EQ(6ul, res.args->last_data_.size());
      EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
      EXPECT_GE(NCI_VERSION_1_1, res.args->last_data_[4]);
      EXPECT_GE(1ul, res.args->last_data_[5]);
  } else {
      EXPECT_EQ(4ul, res.args->last_data_.size());
      EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
      // Wait for CORE_RESET_NTF
      res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
      EXPECT_TRUE(res.no_timeout);
      // Check if reset trigger was due to CORE_RESET_CMD
      EXPECT_LE(8ul, res.args->last_data_.size());
      EXPECT_EQ(2ul, res.args->last_data_[3]);
      EXPECT_GE(1ul, res.args->last_data_[4]);
      EXPECT_EQ(NCI_VERSION_2, res.args->last_data_[5]);
  }
}

/*
 * WriteCoreResetConfigReset:
 * Sends CORE_RESET_CMD_CONFIG_RESET
 * Waits for CORE_RESET_RSP
 * Checks the status, version number and configuration status
 */
TEST_F(NfcHidlTest, WriteCoreResetConfigReset) {
  std::vector<uint8_t> cmd = CORE_RESET_CMD_CONFIG_RESET;
  NfcData data = cmd;
  EXPECT_EQ(data.size(), nfc_->write(data));
  // Wait for CORE_RESET_RSP
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
  EXPECT_TRUE(res.no_timeout);

  /* The response/notification format for CORE_RESET_CMD differs
   * with NCI 1.0 and 2.0. */
  if (nci_version <= NCI_VERSION_1_1) {
      EXPECT_EQ(6ul, res.args->last_data_.size());
      EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
      EXPECT_GE(NCI_VERSION_1_1, res.args->last_data_[4]);
      EXPECT_EQ(1ul, res.args->last_data_[5]);
  } else {
      EXPECT_EQ(4ul, res.args->last_data_.size());
      EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
      // Wait for CORE_RESET_NTF
      res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
      EXPECT_TRUE(res.no_timeout);
      // Check if reset trigger was due to CORE_RESET_CMD
      EXPECT_LE(8ul, res.args->last_data_.size());
      EXPECT_EQ(2ul, res.args->last_data_[3]);
      EXPECT_EQ(1ul, res.args->last_data_[4]);
      EXPECT_EQ(NCI_VERSION_2, res.args->last_data_[5]);
  }
}

/*
 * WriteInvalidCommand:
 * Sends an invalid command
 * Waits for response
 * Checks SYNTAX_ERROR status
 */
TEST_F(NfcHidlTest, WriteInvalidCommand) {
  // Send an Error Command
  std::vector<uint8_t> cmd = INVALID_COMMAND;
  NfcData data = cmd;
  EXPECT_EQ(data.size(), nfc_->write(data));
  // Wait for RSP
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(4ul, res.args->last_data_.size());
  EXPECT_EQ(SYNTAX_ERROR, res.args->last_data_[3]);
}

/*
 * WriteInvalidAndThenValidCommand:
 * Sends an Faulty Data Packet
 * Waits for CORE_INTERFACE_ERROR_NTF
 * Checks SYNTAX_ERROR status
 * Repeat for 100 times appending 0xFF each time to the packet
 * Send CORE_CONN_CREATE_CMD for loop-back mode
 * Check the response
 */
TEST_F(NfcHidlTest, WriteInvalidAndThenValidCommand) {
    std::vector<uint8_t> cmd = CORE_RESET_CMD;
    NfcData data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_RESET_RSP
    auto res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);

    /* NCI 2.0 sends CORE_RESET_NTF everytime. */
    if (nci_version == NCI_VERSION_2) {
        // Wait for CORE_RESET_NTF
        res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res.no_timeout);
    }

    cmd = CORE_INIT_CMD;
    data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_INIT_RSP
    res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);

    // Send an Error Data Packet
    cmd = FAULTY_DATA_PACKET;
    data = cmd;
    size_t size = data.size();

    for (int i = 0; i < 100; i++) {
        data.resize(++size);
        data[size - 1] = 0xFF;
        EXPECT_EQ(data.size(), nfc_->write(data));
        // Wait for CORE_INTERFACE_ERROR_NTF
        res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res.no_timeout);
        EXPECT_EQ(5ul, res.args->last_data_.size());
        EXPECT_EQ(0x60, res.args->last_data_[0]);
        EXPECT_EQ(0x08, res.args->last_data_[1]);
        EXPECT_EQ(0x02, res.args->last_data_[2]);
        EXPECT_EQ(SYNTAX_ERROR, res.args->last_data_[3]);
  }

  cmd = CORE_CONN_CREATE_CMD;
  data = cmd;
  EXPECT_EQ(data.size(), nfc_->write(data));
  // Wait for CORE_CONN_CREATE_RSP
  res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(7ul, res.args->last_data_.size());
  EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
}
/*
 * Bandwidth:
 * Sets the loop-back mode using CORE_CONN_CREATE_CMD
 * Sends max payload size data
 * Waits for the response
 * Checks the data received
 * Repeat to send total of 1Mb data
 */
TEST_F(NfcHidlTest, Bandwidth) {
    std::vector<uint8_t> cmd = CORE_RESET_CMD;
    NfcData data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_RESET_RSP
    auto res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);

    /* NCI 2.0 sends CORE_RESET_NTF everytime. */
    if (nci_version == NCI_VERSION_2) {
        // Wait for CORE_RESET_NTF
        res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res.no_timeout);
    }

    cmd = CORE_INIT_CMD;
    data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_INIT_RSP
    res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);

    cmd = CORE_CONN_CREATE_CMD;
    data = cmd;
    EXPECT_EQ(data.size(), nfc_->write(data));
    // Wait for CORE_CONN_CREATE_RSP
    res = nfc_cb_->WaitForCallback(kCallbackNameSendData);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_TRUE(res.no_timeout);
    EXPECT_EQ(7ul, res.args->last_data_.size());
    EXPECT_EQ((int)NfcStatus::OK, res.args->last_data_[3]);
    uint8_t conn_id = res.args->last_data_[6];
    uint32_t max_payload_size = res.args->last_data_[4];

    for (int loops = 0; loops < NUMBER_LOOPS; loops++) {
        res.args->last_data_.resize(0);
        data.resize(max_payload_size + LOOP_BACK_HEADER_SIZE);
        data[0] = conn_id;
        data[1] = 0x00;
        data[2] = max_payload_size;
        for (uint32_t i = 0; i < max_payload_size; i++) {
            data[i + LOOP_BACK_HEADER_SIZE] = i;
        }
        EXPECT_EQ(max_payload_size + LOOP_BACK_HEADER_SIZE, nfc_->write(data));
        // Wait for data and CORE_CONN_CREDITS_NTF
        auto res1 = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res1.no_timeout);
        auto res2 = nfc_cb_->WaitForCallback(kCallbackNameSendData);
        EXPECT_TRUE(res2.no_timeout);
        // Check if the same data was received back
        EXPECT_TRUE(res1.args);
        EXPECT_TRUE(res2.args);

        NfcData credits_ntf = res1.args->last_data_;
        NfcData received_data = res2.args->last_data_;
        /* It is possible that CORE_CONN_CREDITS_NTF is received before data,
         * Find the order and do further checks depending on that */
        if (received_data.size() != data.size()) {
            credits_ntf = res2.args->last_data_;
            received_data = res1.args->last_data_;
        }
        EXPECT_EQ(data.size(), received_data.size());
        for (size_t i = 0; i < data.size(); i++) {
            EXPECT_EQ(data[i], received_data[i]);
        }

        EXPECT_EQ(6ul, credits_ntf.size());
        // Check if the credit is refilled to 1
        EXPECT_EQ(1, credits_ntf[5]);
  }
}

/*
 * PowerCycle:
 * Calls powerCycle()
 * Waits for NfcEvent.OPEN_CPLT
 * Checks status
 */
TEST_F(NfcHidlTest, PowerCycle) {
  EXPECT_EQ(NfcStatus::OK, nfc_->powerCycle());
  // Wait for NfcEvent.OPEN_CPLT
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
}

/*
 * PowerCycleAfterClose:
 * Calls powerCycle() after close()
 * Checks status
 */
TEST_F(NfcHidlTest, PowerCycleAfterClose) {
  EXPECT_EQ(NfcStatus::OK, nfc_->close());
  // Wait for CLOSE_CPLT event
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

  EXPECT_EQ(NfcStatus::FAILED, nfc_->powerCycle());

  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
  // Wait for OPEN_CPLT event
  res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
}

/*
 * CoreInitialized:
 * Calls coreInitialized() with different data
 * Waits for NfcEvent.POST_INIT_CPLT
 */
TEST_F(NfcHidlTest, CoreInitialized) {
  NfcData data;
  data.resize(1);
  // These parameters might lead to device specific proprietary behavior
  // Using > 10 values should result in predictable and common results for
  // most devices.
  for (int i = 10; i <= 16; i++) {
      data[0] = i;
      NfcStatus status = nfc_->coreInitialized(data);

      /* In case coreInitialized returned FAILED, do not wait for
       * POST_INIT_CLPT event. */
      if (status == NfcStatus::FAILED) continue;

      EXPECT_EQ(NfcStatus::OK, status);
      // Wait for NfcEvent.POST_INIT_CPLT
      auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
      EXPECT_TRUE(res.no_timeout);
      EXPECT_EQ(NfcEvent::POST_INIT_CPLT, res.args->last_event_);
  }
}

/*
 * ControlGranted:
 * Calls controlGranted()
 * Checks the return value
 */
TEST_F(NfcHidlTest, ControlGranted) {
  EXPECT_EQ(NfcStatus::OK, nfc_->controlGranted());
}

/*
 * ControlGrantedAfterClose:
 * Call controlGranted() after close
 * Checks the return value
 */
TEST_F(NfcHidlTest, ControlGrantedAfterClose) {
  EXPECT_EQ(NfcStatus::OK, nfc_->close());
  // Wait for CLOSE_CPLT event
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

  EXPECT_EQ(NfcStatus::OK, nfc_->controlGranted());

  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
  // Wait for OPEN_CPLT event
  res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
}

/* PreDiscover:
 * Calls prediscover()
 * Checks the return value
 */
TEST_F(NfcHidlTest, PreDiscover) {
  EXPECT_EQ(NfcStatus::OK, nfc_->prediscover());
}

/*
 * PreDiscoverAfterClose:
 * Call prediscover() after close
 * Checks the return value
 */
TEST_F(NfcHidlTest, PreDiscoverAfterClose) {
  EXPECT_EQ(NfcStatus::OK, nfc_->close());
  // Wait for CLOSE_CPLT event
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

  EXPECT_EQ(NfcStatus::OK, nfc_->prediscover());

  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
  // Wait for OPEN_CPLT event
  res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
}

/*
 * CloseAfterClose:
 * Calls close() multiple times
 * Checks status
 */
TEST_F(NfcHidlTest, CloseAfterClose) {
  EXPECT_EQ(NfcStatus::OK, nfc_->close());
  // Wait for CLOSE_CPLT event
  auto res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::CLOSE_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);

  EXPECT_EQ(NfcStatus::FAILED, nfc_->close());

  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
  // Wait for OPEN_CPLT event
  res = nfc_cb_->WaitForCallback(kCallbackNameSendEvent);
  EXPECT_TRUE(res.no_timeout);
  EXPECT_EQ(NfcEvent::OPEN_CPLT, res.args->last_event_);
  EXPECT_EQ(NfcStatus::OK, res.args->last_status_);
}

/*
 * OpenAfterOpen:
 * Calls open() multiple times
 * Checks status
 */
TEST_F(NfcHidlTest, OpenAfterOpen) {
  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
  EXPECT_EQ(NfcStatus::OK, nfc_->open(nfc_cb_));
}

int main(int argc, char** argv) {
  ::testing::AddGlobalTestEnvironment(new NfcHidlEnvironment);
  ::testing::InitGoogleTest(&argc, argv);

  std::system("svc nfc disable"); /* Turn off NFC */
  sleep(5);

  int status = RUN_ALL_TESTS();
  LOG(INFO) << "Test result = " << status;

  std::system("svc nfc enable"); /* Turn on NFC */
  sleep(5);

  return status;
}