contexthub/1.0/vts/functional/VtsHalContexthubV1_0TargetTest.cpp - platform/hardware/interfaces - Git at Google

 /*
  * Copyright (C) 2017 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 "contexthub_hidl_hal_test"

 #include <android-base/logging.h>
 #include <android/hardware/contexthub/1.0/IContexthub.h>
 #include <android/hardware/contexthub/1.0/IContexthubCallback.h>
 #include <android/hardware/contexthub/1.0/types.h>
 #include <android/log.h>
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
 #include <log/log.h>

 #include <cinttypes>
 #include <future>
 #include <utility>

 using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
 using ::android::hardware::contexthub::V1_0::AsyncEventType;
 using ::android::hardware::contexthub::V1_0::ContextHub;
 using ::android::hardware::contexthub::V1_0::ContextHubMsg;
 using ::android::hardware::contexthub::V1_0::HubAppInfo;
 using ::android::hardware::contexthub::V1_0::IContexthub;
 using ::android::hardware::contexthub::V1_0::IContexthubCallback;
 using ::android::hardware::contexthub::V1_0::NanoAppBinary;
 using ::android::hardware::contexthub::V1_0::Result;
 using ::android::hardware::contexthub::V1_0::TransactionResult;
 using ::android::sp;

 #define ASSERT_OK(result) ASSERT_EQ(result, Result::OK)
 #define EXPECT_OK(result) EXPECT_EQ(result, Result::OK)

 namespace {

 // App ID with vendor "GoogT" (Google Testing), app identifier 0x555555. This
 // app ID is reserved and must never appear in the list of loaded apps.
 constexpr uint64_t kNonExistentAppId = 0x476f6f6754555555;

 // Helper that does explicit conversion of an enum class to its underlying/base
 // type. Useful for stream output of enum values.
 template<typename EnumType>
 constexpr typename std::underlying_type<EnumType>::type asBaseType(
     EnumType value) {
   return static_cast<typename std::underlying_type<EnumType>::type>(value);
 }

 // Synchronously queries IContexthub::getHubs() and returns the result
 hidl_vec<ContextHub> getHubsSync(sp<IContexthub> hubApi) {
   hidl_vec<ContextHub> hubList;
   std::promise<void> barrier;

   hubApi->getHubs([&hubList, &barrier](const hidl_vec<ContextHub>& hubs) {
     hubList = hubs;
     barrier.set_value();
   });
   barrier.get_future().wait_for(std::chrono::seconds(1));

   return hubList;
 }

 // Gets a list of valid hub IDs in the system
 std::vector<std::string> getHubIds(const std::string& service_name) {
     std::vector<std::string> hubIds;

     sp<IContexthub> hubApi = IContexthub::getService(service_name);

     if (hubApi != nullptr) {
         for (const ContextHub& hub : getHubsSync(hubApi)) {
             hubIds.push_back(std::to_string(hub.hubId));
         }
     }

     ALOGD("Running tests against all %zu reported hubs for service %s", hubIds.size(),
           service_name.c_str());
     return hubIds;
 }

 // Test fixture parameterized by hub ID, initializes the HAL and makes the context hub API handle
 // available.
 class ContexthubHidlTest : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
   public:
     virtual void SetUp() override {
         hubApi = IContexthub::getService(std::get<0>(GetParam()));
         ASSERT_NE(hubApi, nullptr);

         // getHubs() must be called at least once for proper initialization of the
         // HAL implementation
         getHubsSync(hubApi);
     }

     uint32_t getHubId() { return std::stoi(std::get<1>(GetParam())); }

     Result registerCallback(sp<IContexthubCallback> cb) {
         Result result = hubApi->registerCallback(getHubId(), cb);
         ALOGD("Registered callback, result %" PRIu32, result);
         return result;
     }

     sp<IContexthub> hubApi;
 };

 // Base callback implementation that just logs all callbacks by default
 class ContexthubCallbackBase : public IContexthubCallback {
  public:
   virtual Return<void> handleClientMsg(const ContextHubMsg& /*msg*/) override {
     ALOGD("Got client message callback");
     return Void();
   }

   virtual Return<void> handleTxnResult(
       uint32_t txnId, TransactionResult result) override {
     ALOGD("Got transaction result callback for txnId %" PRIu32 " with result %"
           PRId32, txnId, result);
     return Void();
   }

   virtual Return<void> handleHubEvent(AsyncEventType evt) override {
     ALOGD("Got hub event callback for event type %" PRIu32, evt);
     return Void();
   }

   virtual Return<void> handleAppAbort(uint64_t appId, uint32_t abortCode)
       override {
     ALOGD("Got app abort notification for appId 0x%" PRIx64 " with abort code "
           "0x%" PRIx32, appId, abortCode);
     return Void();
   }

   virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& /*appInfo*/)
       override {
     ALOGD("Got app info callback");
     return Void();
   }
 };

 // Wait for a callback to occur (signaled by the given future) up to the
 // provided timeout. If the future is invalid or the callback does not come
 // within the given time, returns false.
 template<class ReturnType>
 bool waitForCallback(
     std::future<ReturnType> future,
     ReturnType *result,
     std::chrono::milliseconds timeout = std::chrono::seconds(5)) {
   auto expiration = std::chrono::system_clock::now() + timeout;

   EXPECT_NE(result, nullptr);
   EXPECT_TRUE(future.valid());
   if (result != nullptr && future.valid()) {
     std::future_status status = future.wait_until(expiration);
     EXPECT_NE(status, std::future_status::timeout)
         << "Timed out waiting for callback";

     if (status == std::future_status::ready) {
       *result = future.get();
       return true;
     }
   }

   return false;
 }

 // Ensures that the metadata reported in getHubs() is sane
 TEST_P(ContexthubHidlTest, TestGetHubs) {
     hidl_vec<ContextHub> hubs = getHubsSync(hubApi);
     ALOGD("System reports %zu hubs", hubs.size());

     for (const ContextHub& hub : hubs) {
         ALOGD("Checking hub ID %" PRIu32, hub.hubId);

         EXPECT_FALSE(hub.name.empty());
         EXPECT_FALSE(hub.vendor.empty());
         EXPECT_FALSE(hub.toolchain.empty());
         EXPECT_GT(hub.peakMips, 0);
         EXPECT_GE(hub.stoppedPowerDrawMw, 0);
         EXPECT_GE(hub.sleepPowerDrawMw, 0);
         EXPECT_GT(hub.peakPowerDrawMw, 0);

         // Minimum 128 byte MTU as required by CHRE API v1.0
         EXPECT_GE(hub.maxSupportedMsgLen, UINT32_C(128));
     }
 }

 TEST_P(ContexthubHidlTest, TestRegisterCallback) {
   ALOGD("TestRegisterCallback called, hubId %" PRIu32, getHubId());
   ASSERT_OK(registerCallback(new ContexthubCallbackBase()));
 }

 TEST_P(ContexthubHidlTest, TestRegisterNullCallback) {
   ALOGD("TestRegisterNullCallback called, hubId %" PRIu32, getHubId());
   ASSERT_OK(registerCallback(nullptr));
 }

 // Helper callback that puts the async appInfo callback data into a promise
 class QueryAppsCallback : public ContexthubCallbackBase {
  public:
   virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& appInfo)
       override {
     ALOGD("Got app info callback with %zu apps", appInfo.size());
     promise.set_value(appInfo);
     return Void();
   }

   std::promise<hidl_vec<HubAppInfo>> promise;
 };

 // Calls queryApps() and checks the returned metadata
 TEST_P(ContexthubHidlTest, TestQueryApps) {
   ALOGD("TestQueryApps called, hubId %u", getHubId());
   sp<QueryAppsCallback> cb = new QueryAppsCallback();
   ASSERT_OK(registerCallback(cb));

   Result result = hubApi->queryApps(getHubId());
   ASSERT_OK(result);

   ALOGD("Waiting for app info callback");
   hidl_vec<HubAppInfo> appList;
   ASSERT_TRUE(waitForCallback(cb->promise.get_future(), &appList));
   for (const HubAppInfo &appInfo : appList) {
     EXPECT_NE(appInfo.appId, UINT64_C(0));
     EXPECT_NE(appInfo.appId, kNonExistentAppId);
   }
 }

 // Helper callback that puts the TransactionResult for the expectedTxnId into a
 // promise
 class TxnResultCallback : public ContexthubCallbackBase {
  public:
   virtual Return<void> handleTxnResult(
       uint32_t txnId, TransactionResult result) override {
     ALOGD("Got transaction result callback for txnId %" PRIu32 " (expecting %"
           PRIu32 ") with result %" PRId32, txnId, expectedTxnId, result);
     if (txnId == expectedTxnId) {
       promise.set_value(result);
     }
     return Void();
   }

   uint32_t expectedTxnId = 0;
   std::promise<TransactionResult> promise;
 };

 // Parameterized fixture that sets the callback to TxnResultCallback
 class ContexthubTxnTest : public ContexthubHidlTest {
  public:
   virtual void SetUp() override {
     ContexthubHidlTest::SetUp();
     ASSERT_OK(registerCallback(cb));
   }

   sp<TxnResultCallback> cb = new TxnResultCallback();
 };


 // Checks cases where the hub implementation is expected to return an error, but
 // that error can be returned either synchronously or in the asynchronous
 // transaction callback. Returns an AssertionResult that can be used in
 // ASSERT/EXPECT_TRUE. Allows checking the sync result against 1 additional
 // allowed error code apart from OK and TRANSACTION_FAILED, which are always
 // allowed.
 ::testing::AssertionResult checkFailureSyncOrAsync(
     Result result, Result allowedSyncResult,
     std::future<TransactionResult>&& future) {
   if (result == Result::OK) {
     // No error reported synchronously - this is OK, but then we should get an
     // async callback with a failure status
     TransactionResult asyncResult;
     if (!waitForCallback(std::forward<std::future<TransactionResult>>(future),
                          &asyncResult)) {
       return ::testing::AssertionFailure()
           << "Got successful sync result, then failed to receive async cb";
     } else if (asyncResult == TransactionResult::SUCCESS) {
       return ::testing::AssertionFailure()
           << "Got successful sync result, then unexpected successful async "
              "result";
     }
   } else if (result != allowedSyncResult &&
              result != Result::TRANSACTION_FAILED) {
     return ::testing::AssertionFailure() << "Got sync result "
         << asBaseType(result) << ", expected TRANSACTION_FAILED or "
         << asBaseType(allowedSyncResult);
   }

   return ::testing::AssertionSuccess();
 }

 TEST_P(ContexthubTxnTest, TestSendMessageToNonExistentNanoApp) {
   ContextHubMsg msg;
   msg.appName = kNonExistentAppId;
   msg.msgType = 1;
   msg.msg.resize(4);
   std::fill(msg.msg.begin(), msg.msg.end(), 0);

   ALOGD("Sending message to non-existent nanoapp");
   Result result = hubApi->sendMessageToHub(getHubId(), msg);
   if (result != Result::OK &&
       result != Result::BAD_PARAMS &&
       result != Result::TRANSACTION_FAILED) {
     FAIL() << "Got result " << asBaseType(result) << ", expected OK, BAD_PARAMS"
         << ", or TRANSACTION_FAILED";
   }
 }

 TEST_P(ContexthubTxnTest, TestLoadEmptyNanoApp) {
   cb->expectedTxnId = 0123;
   NanoAppBinary emptyApp;

   emptyApp.appId = kNonExistentAppId;
   emptyApp.appVersion = 1;
   emptyApp.flags = 0;
   emptyApp.targetChreApiMajorVersion = 1;
   emptyApp.targetChreApiMinorVersion = 0;

   ALOGD("Loading empty nanoapp");
   Result result = hubApi->loadNanoApp(getHubId(), emptyApp, cb->expectedTxnId);
   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
                                       cb->promise.get_future()));
 }

 TEST_P(ContexthubTxnTest, TestUnloadNonexistentNanoApp) {
   cb->expectedTxnId = 1234;

   ALOGD("Unloading nonexistent nanoapp");
   Result result = hubApi->unloadNanoApp(getHubId(), kNonExistentAppId,
                                         cb->expectedTxnId);
   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
                                       cb->promise.get_future()));
 }

 TEST_P(ContexthubTxnTest, TestEnableNonexistentNanoApp) {
   cb->expectedTxnId = 2345;

   ALOGD("Enabling nonexistent nanoapp");
   Result result = hubApi->enableNanoApp(getHubId(), kNonExistentAppId,
                                         cb->expectedTxnId);
   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
                                       cb->promise.get_future()));
 }

 TEST_P(ContexthubTxnTest, TestDisableNonexistentNanoApp) {
   cb->expectedTxnId = 3456;

   ALOGD("Disabling nonexistent nanoapp");
   Result result = hubApi->disableNanoApp(getHubId(), kNonExistentAppId,
                                          cb->expectedTxnId);
   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
                                       cb->promise.get_future()));
 }

 // Return the test parameters of a vecter of tuples for all IContexthub services and each of its hub
 // id: <service name of IContexthub, hub id of the IContexthub service>
 static std::vector<std::tuple<std::string, std::string>> get_parameters() {
     std::vector<std::tuple<std::string, std::string>> parameters;
     std::vector<std::string> service_names =
             android::hardware::getAllHalInstanceNames(IContexthub::descriptor);
     for (const std::string& service_name : service_names) {
         std::vector<std::string> ids = getHubIds(service_name);
         for (const std::string& id : ids) {
             parameters.push_back(std::make_tuple(service_name, id));
         }
     }

     return parameters;
 }

 static std::vector<std::tuple<std::string, std::string>> kTestParameters = get_parameters();

 INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubHidlTest, testing::ValuesIn(kTestParameters),
                          android::hardware::PrintInstanceTupleNameToString<>);

 INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubTxnTest, testing::ValuesIn(kTestParameters),
                          android::hardware::PrintInstanceTupleNameToString<>);

 }  // anonymous namespace
	/*
	* Copyright (C) 2017 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 "contexthub_hidl_hal_test"

	#include <android-base/logging.h>
	#include <android/hardware/contexthub/1.0/IContexthub.h>
	#include <android/hardware/contexthub/1.0/IContexthubCallback.h>
	#include <android/hardware/contexthub/1.0/types.h>
	#include <android/log.h>
	#include <gtest/gtest.h>
	#include <hidl/GtestPrinter.h>
	#include <hidl/ServiceManagement.h>
	#include <log/log.h>

	#include <cinttypes>
	#include <future>
	#include <utility>

	using ::android::hardware::Return;
	using ::android::hardware::Void;
	using ::android::hardware::hidl_string;
	using ::android::hardware::hidl_vec;
	using ::android::hardware::contexthub::V1_0::AsyncEventType;
	using ::android::hardware::contexthub::V1_0::ContextHub;
	using ::android::hardware::contexthub::V1_0::ContextHubMsg;
	using ::android::hardware::contexthub::V1_0::HubAppInfo;
	using ::android::hardware::contexthub::V1_0::IContexthub;
	using ::android::hardware::contexthub::V1_0::IContexthubCallback;
	using ::android::hardware::contexthub::V1_0::NanoAppBinary;
	using ::android::hardware::contexthub::V1_0::Result;
	using ::android::hardware::contexthub::V1_0::TransactionResult;
	using ::android::sp;

	#define ASSERT_OK(result) ASSERT_EQ(result, Result::OK)
	#define EXPECT_OK(result) EXPECT_EQ(result, Result::OK)

	namespace {

	// App ID with vendor "GoogT" (Google Testing), app identifier 0x555555. This
	// app ID is reserved and must never appear in the list of loaded apps.
	constexpr uint64_t kNonExistentAppId = 0x476f6f6754555555;

	// Helper that does explicit conversion of an enum class to its underlying/base
	// type. Useful for stream output of enum values.
	template<typename EnumType>
	constexpr typename std::underlying_type<EnumType>::type asBaseType(
	EnumType value) {
	return static_cast<typename std::underlying_type<EnumType>::type>(value);
	}

	// Synchronously queries IContexthub::getHubs() and returns the result
	hidl_vec<ContextHub> getHubsSync(sp<IContexthub> hubApi) {
	hidl_vec<ContextHub> hubList;
	std::promise<void> barrier;

	hubApi->getHubs([&hubList, &barrier](const hidl_vec<ContextHub>& hubs) {
	hubList = hubs;
	barrier.set_value();
	});
	barrier.get_future().wait_for(std::chrono::seconds(1));

	return hubList;
	}

	// Gets a list of valid hub IDs in the system
	std::vector<std::string> getHubIds(const std::string& service_name) {
	std::vector<std::string> hubIds;

	sp<IContexthub> hubApi = IContexthub::getService(service_name);

	if (hubApi != nullptr) {
	for (const ContextHub& hub : getHubsSync(hubApi)) {
	hubIds.push_back(std::to_string(hub.hubId));
	}
	}

	ALOGD("Running tests against all %zu reported hubs for service %s", hubIds.size(),
	service_name.c_str());
	return hubIds;
	}

	// Test fixture parameterized by hub ID, initializes the HAL and makes the context hub API handle
	// available.
	class ContexthubHidlTest : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
	public:
	virtual void SetUp() override {
	hubApi = IContexthub::getService(std::get<0>(GetParam()));
	ASSERT_NE(hubApi, nullptr);

	// getHubs() must be called at least once for proper initialization of the
	// HAL implementation
	getHubsSync(hubApi);
	}

	uint32_t getHubId() { return std::stoi(std::get<1>(GetParam())); }

	Result registerCallback(sp<IContexthubCallback> cb) {
	Result result = hubApi->registerCallback(getHubId(), cb);
	ALOGD("Registered callback, result %" PRIu32, result);
	return result;
	}

	sp<IContexthub> hubApi;
	};

	// Base callback implementation that just logs all callbacks by default
	class ContexthubCallbackBase : public IContexthubCallback {
	public:
	virtual Return<void> handleClientMsg(const ContextHubMsg& /msg/) override {
	ALOGD("Got client message callback");
	return Void();
	}

	virtual Return<void> handleTxnResult(
	uint32_t txnId, TransactionResult result) override {
	ALOGD("Got transaction result callback for txnId %" PRIu32 " with result %"
	PRId32, txnId, result);
	return Void();
	}

	virtual Return<void> handleHubEvent(AsyncEventType evt) override {
	ALOGD("Got hub event callback for event type %" PRIu32, evt);
	return Void();
	}

	virtual Return<void> handleAppAbort(uint64_t appId, uint32_t abortCode)
	override {
	ALOGD("Got app abort notification for appId 0x%" PRIx64 " with abort code "
	"0x%" PRIx32, appId, abortCode);
	return Void();
	}

	virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& /appInfo/)
	override {
	ALOGD("Got app info callback");
	return Void();
	}
	};

	// Wait for a callback to occur (signaled by the given future) up to the
	// provided timeout. If the future is invalid or the callback does not come
	// within the given time, returns false.
	template<class ReturnType>
	bool waitForCallback(
	std::future<ReturnType> future,
	ReturnType *result,
	std::chrono::milliseconds timeout = std::chrono::seconds(5)) {
	auto expiration = std::chrono::system_clock::now() + timeout;

	EXPECT_NE(result, nullptr);
	EXPECT_TRUE(future.valid());
	if (result != nullptr && future.valid()) {
	std::future_status status = future.wait_until(expiration);
	EXPECT_NE(status, std::future_status::timeout)
	<< "Timed out waiting for callback";

	if (status == std::future_status::ready) {
	*result = future.get();
	return true;
	}
	}

	return false;
	}

	// Ensures that the metadata reported in getHubs() is sane
	TEST_P(ContexthubHidlTest, TestGetHubs) {
	hidl_vec<ContextHub> hubs = getHubsSync(hubApi);
	ALOGD("System reports %zu hubs", hubs.size());

	for (const ContextHub& hub : hubs) {
	ALOGD("Checking hub ID %" PRIu32, hub.hubId);

	EXPECT_FALSE(hub.name.empty());
	EXPECT_FALSE(hub.vendor.empty());
	EXPECT_FALSE(hub.toolchain.empty());
	EXPECT_GT(hub.peakMips, 0);
	EXPECT_GE(hub.stoppedPowerDrawMw, 0);
	EXPECT_GE(hub.sleepPowerDrawMw, 0);
	EXPECT_GT(hub.peakPowerDrawMw, 0);

	// Minimum 128 byte MTU as required by CHRE API v1.0
	EXPECT_GE(hub.maxSupportedMsgLen, UINT32_C(128));
	}
	}

	TEST_P(ContexthubHidlTest, TestRegisterCallback) {
	ALOGD("TestRegisterCallback called, hubId %" PRIu32, getHubId());
	ASSERT_OK(registerCallback(new ContexthubCallbackBase()));
	}

	TEST_P(ContexthubHidlTest, TestRegisterNullCallback) {
	ALOGD("TestRegisterNullCallback called, hubId %" PRIu32, getHubId());
	ASSERT_OK(registerCallback(nullptr));
	}

	// Helper callback that puts the async appInfo callback data into a promise
	class QueryAppsCallback : public ContexthubCallbackBase {
	public:
	virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& appInfo)
	override {
	ALOGD("Got app info callback with %zu apps", appInfo.size());
	promise.set_value(appInfo);
	return Void();
	}

	std::promise<hidl_vec<HubAppInfo>> promise;
	};

	// Calls queryApps() and checks the returned metadata
	TEST_P(ContexthubHidlTest, TestQueryApps) {
	ALOGD("TestQueryApps called, hubId %u", getHubId());
	sp<QueryAppsCallback> cb = new QueryAppsCallback();
	ASSERT_OK(registerCallback(cb));

	Result result = hubApi->queryApps(getHubId());
	ASSERT_OK(result);

	ALOGD("Waiting for app info callback");
	hidl_vec<HubAppInfo> appList;
	ASSERT_TRUE(waitForCallback(cb->promise.get_future(), &appList));
	for (const HubAppInfo &appInfo : appList) {
	EXPECT_NE(appInfo.appId, UINT64_C(0));
	EXPECT_NE(appInfo.appId, kNonExistentAppId);
	}
	}

	// Helper callback that puts the TransactionResult for the expectedTxnId into a
	// promise
	class TxnResultCallback : public ContexthubCallbackBase {
	public:
	virtual Return<void> handleTxnResult(
	uint32_t txnId, TransactionResult result) override {
	ALOGD("Got transaction result callback for txnId %" PRIu32 " (expecting %"
	PRIu32 ") with result %" PRId32, txnId, expectedTxnId, result);
	if (txnId == expectedTxnId) {
	promise.set_value(result);
	}
	return Void();
	}

	uint32_t expectedTxnId = 0;
	std::promise<TransactionResult> promise;
	};

	// Parameterized fixture that sets the callback to TxnResultCallback
	class ContexthubTxnTest : public ContexthubHidlTest {
	public:
	virtual void SetUp() override {
	ContexthubHidlTest::SetUp();
	ASSERT_OK(registerCallback(cb));
	}

	sp<TxnResultCallback> cb = new TxnResultCallback();
	};


	// Checks cases where the hub implementation is expected to return an error, but
	// that error can be returned either synchronously or in the asynchronous
	// transaction callback. Returns an AssertionResult that can be used in
	// ASSERT/EXPECT_TRUE. Allows checking the sync result against 1 additional
	// allowed error code apart from OK and TRANSACTION_FAILED, which are always
	// allowed.
	::testing::AssertionResult checkFailureSyncOrAsync(
	Result result, Result allowedSyncResult,
	std::future<TransactionResult>&& future) {
	if (result == Result::OK) {
	// No error reported synchronously - this is OK, but then we should get an
	// async callback with a failure status
	TransactionResult asyncResult;
	if (!waitForCallback(std::forward<std::future<TransactionResult>>(future),
	&asyncResult)) {
	return ::testing::AssertionFailure()
	<< "Got successful sync result, then failed to receive async cb";
	} else if (asyncResult == TransactionResult::SUCCESS) {
	return ::testing::AssertionFailure()
	<< "Got successful sync result, then unexpected successful async "
	"result";
	}
	} else if (result != allowedSyncResult &&
	result != Result::TRANSACTION_FAILED) {
	return ::testing::AssertionFailure() << "Got sync result "
	<< asBaseType(result) << ", expected TRANSACTION_FAILED or "
	<< asBaseType(allowedSyncResult);
	}

	return ::testing::AssertionSuccess();
	}

	TEST_P(ContexthubTxnTest, TestSendMessageToNonExistentNanoApp) {
	ContextHubMsg msg;
	msg.appName = kNonExistentAppId;
	msg.msgType = 1;
	msg.msg.resize(4);
	std::fill(msg.msg.begin(), msg.msg.end(), 0);

	ALOGD("Sending message to non-existent nanoapp");
	Result result = hubApi->sendMessageToHub(getHubId(), msg);
	if (result != Result::OK &&
	result != Result::BAD_PARAMS &&
	result != Result::TRANSACTION_FAILED) {
	FAIL() << "Got result " << asBaseType(result) << ", expected OK, BAD_PARAMS"
	<< ", or TRANSACTION_FAILED";
	}
	}

	TEST_P(ContexthubTxnTest, TestLoadEmptyNanoApp) {
	cb->expectedTxnId = 0123;
	NanoAppBinary emptyApp;

	emptyApp.appId = kNonExistentAppId;
	emptyApp.appVersion = 1;
	emptyApp.flags = 0;
	emptyApp.targetChreApiMajorVersion = 1;
	emptyApp.targetChreApiMinorVersion = 0;

	ALOGD("Loading empty nanoapp");
	Result result = hubApi->loadNanoApp(getHubId(), emptyApp, cb->expectedTxnId);
	EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
	cb->promise.get_future()));
	}

	TEST_P(ContexthubTxnTest, TestUnloadNonexistentNanoApp) {
	cb->expectedTxnId = 1234;

	ALOGD("Unloading nonexistent nanoapp");
	Result result = hubApi->unloadNanoApp(getHubId(), kNonExistentAppId,
	cb->expectedTxnId);
	EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
	cb->promise.get_future()));
	}

	TEST_P(ContexthubTxnTest, TestEnableNonexistentNanoApp) {
	cb->expectedTxnId = 2345;

	ALOGD("Enabling nonexistent nanoapp");
	Result result = hubApi->enableNanoApp(getHubId(), kNonExistentAppId,
	cb->expectedTxnId);
	EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
	cb->promise.get_future()));
	}

	TEST_P(ContexthubTxnTest, TestDisableNonexistentNanoApp) {
	cb->expectedTxnId = 3456;

	ALOGD("Disabling nonexistent nanoapp");
	Result result = hubApi->disableNanoApp(getHubId(), kNonExistentAppId,
	cb->expectedTxnId);
	EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
	cb->promise.get_future()));
	}

	// Return the test parameters of a vecter of tuples for all IContexthub services and each of its hub
	// id: <service name of IContexthub, hub id of the IContexthub service>
	static std::vector<std::tuple<std::string, std::string>> get_parameters() {
	std::vector<std::tuple<std::string, std::string>> parameters;
	std::vector<std::string> service_names =
	android::hardware::getAllHalInstanceNames(IContexthub::descriptor);
	for (const std::string& service_name : service_names) {
	std::vector<std::string> ids = getHubIds(service_name);
	for (const std::string& id : ids) {
	parameters.push_back(std::make_tuple(service_name, id));
	}
	}

	return parameters;
	}

	static std::vector<std::tuple<std::string, std::string>> kTestParameters = get_parameters();

	INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubHidlTest, testing::ValuesIn(kTestParameters),
	android::hardware::PrintInstanceTupleNameToString<>);

	INSTANTIATE_TEST_SUITE_P(HubIdSpecificTests, ContexthubTxnTest, testing::ValuesIn(kTestParameters),
	android::hardware::PrintInstanceTupleNameToString<>);

	} // anonymous namespace