biometrics/face/aidl/vts/VtsHalBiometricsFaceTargetTest.cpp - LeafOS-Project/android_hardware_interfaces - Gitiles

 /*
  * Copyright (C) 2020 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.
  */
 #include <aidl/Gtest.h>
 #include <aidl/Vintf.h>
 #include <aidl/android/hardware/biometrics/face/BnFace.h>
 #include <aidl/android/hardware/biometrics/face/BnSessionCallback.h>

 #include <android/binder_manager.h>
 #include <android/binder_process.h>

 #include <chrono>
 #include <future>

 namespace aidl::android::hardware::biometrics::face {
 namespace {

 using namespace std::literals::chrono_literals;

 using aidl::android::hardware::common::NativeHandle;

 constexpr int kSensorId = 0;
 constexpr int kUserId = 0;

 class SessionCallback : public BnSessionCallback {
   public:
     ndk::ScopedAStatus onChallengeGenerated(int64_t challenge) override {
         auto lock = std::lock_guard{mMutex};
         mOnChallengeGeneratedInvoked = true;
         mGeneratedChallenge = challenge;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onChallengeRevoked(int64_t challenge) override {
         auto lock = std::lock_guard{mMutex};
         mOnChallengeRevokedInvoked = true;
         mRevokedChallenge = challenge;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onAuthenticationFrame(const AuthenticationFrame& /*frame*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onEnrollmentFrame(const EnrollmentFrame& /*frame*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onError(Error error, int32_t vendorCode) override {
         auto lock = std::lock_guard<std::mutex>{mMutex};
         mError = error;
         mVendorCode = vendorCode;
         mOnErrorInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onEnrollmentProgress(int32_t /*enrollmentId*/,
                                             int32_t /*remaining*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onAuthenticationSucceeded(
             int32_t /*enrollmentId*/, const keymaster::HardwareAuthToken& /*hat*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onAuthenticationFailed() override { return ndk::ScopedAStatus::ok(); }

     ndk::ScopedAStatus onLockoutTimed(int64_t /*durationMillis*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onLockoutPermanent() override { return ndk::ScopedAStatus::ok(); }

     ndk::ScopedAStatus onLockoutCleared() override { return ndk::ScopedAStatus::ok(); }

     ndk::ScopedAStatus onInteractionDetected() override { return ndk::ScopedAStatus::ok(); }

     ndk::ScopedAStatus onEnrollmentsEnumerated(
             const std::vector<int32_t>& /*enrollmentIds*/) override {
         auto lock = std::lock_guard{mMutex};
         mOnEnrollmentsEnumeratedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onEnrollmentsRemoved(
             const std::vector<int32_t>& /*enrollmentIds*/) override {
         auto lock = std::lock_guard{mMutex};
         mOnEnrollmentsRemovedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onFeaturesRetrieved(const std::vector<Feature>& /*features*/) override {
         auto lock = std::lock_guard{mMutex};
         mOnFeaturesRetrievedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onFeatureSet(Feature /*feature*/) override {
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onAuthenticatorIdRetrieved(int64_t /*authenticatorId*/) override {
         auto lock = std::lock_guard{mMutex};
         mOnAuthenticatorIdRetrievedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onAuthenticatorIdInvalidated(int64_t /*newAuthenticatorId*/) override {
         auto lock = std::lock_guard{mMutex};
         mOnAuthenticatorIdInvalidatedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     ndk::ScopedAStatus onSessionClosed() override {
         auto lock = std::lock_guard<std::mutex>{mMutex};
         mOnSessionClosedInvoked = true;
         mCv.notify_one();
         return ndk::ScopedAStatus::ok();
     }

     std::mutex mMutex;
     std::condition_variable mCv;
     Error mError = Error::UNKNOWN;
     int32_t mVendorCode = 0;
     int64_t mGeneratedChallenge = 0;
     int64_t mRevokedChallenge = 0;
     bool mOnChallengeGeneratedInvoked = false;
     bool mOnChallengeRevokedInvoked = false;
     bool mOnErrorInvoked = false;
     bool mOnEnrollmentsEnumeratedInvoked = false;
     bool mOnEnrollmentsRemovedInvoked = false;
     bool mOnFeaturesRetrievedInvoked = false;
     bool mOnAuthenticatorIdRetrievedInvoked = false;
     bool mOnAuthenticatorIdInvalidatedInvoked = false;
     bool mOnSessionClosedInvoked = false;
 };

 class Face : public testing::TestWithParam<std::string> {
   protected:
     void SetUp() override {
         // Prepare the callback.
         mCb = ndk::SharedRefBase::make<SessionCallback>();

         int retries = 0;
         bool isOk = false;
         // If the first attempt to create a session fails, we try to create a session again. The
         // first attempt might fail if the framework already has an active session. The AIDL
         // contract doesn't allow to create a new session without closing the old one. However, we
         // can't close the framework's session from VTS. The expectation here is that the HAL will
         // crash after the first illegal attempt to create a session, then it will restart, and then
         // we'll be able to create a session.
         do {
             // Get an instance of the HAL.
             AIBinder* binder = AServiceManager_waitForService(GetParam().c_str());
             ASSERT_NE(binder, nullptr);
             mHal = IFace::fromBinder(ndk::SpAIBinder(binder));

             // Create a session.
             isOk = mHal->createSession(kSensorId, kUserId, mCb, &mSession).isOk();
             ++retries;
         } while (!isOk && retries < 2);

         ASSERT_TRUE(isOk);
     }

     void TearDown() override {
         // Close the mSession.
         ASSERT_TRUE(mSession->close().isOk());

         // Make sure the mSession is closed.
         auto lock = std::unique_lock<std::mutex>(mCb->mMutex);
         mCb->mCv.wait(lock, [this] { return mCb->mOnSessionClosedInvoked; });
     }

     std::shared_ptr<IFace> mHal;
     std::shared_ptr<SessionCallback> mCb;
     std::shared_ptr<ISession> mSession;
 };

 TEST_P(Face, GetSensorPropsWorksTest) {
     std::vector<SensorProps> sensorProps;

     // Call the method.
     ASSERT_TRUE(mHal->getSensorProps(&sensorProps).isOk());

     // Make sure the sensorProps aren't empty.
     ASSERT_FALSE(sensorProps.empty());
     ASSERT_FALSE(sensorProps[0].commonProps.componentInfo.empty());
 }

 TEST_P(Face, EnrollWithBadHatResultsInErrorTest) {
     // Call the method.
     auto hat = keymaster::HardwareAuthToken{};
     std::shared_ptr<common::ICancellationSignal> cancellationSignal;
     ASSERT_TRUE(
             mSession->enroll(hat, EnrollmentType::DEFAULT, {}, std::nullopt, &cancellationSignal)
                     .isOk());

     // Make sure an error is returned.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnErrorInvoked; });
     EXPECT_EQ(mCb->mError, Error::UNABLE_TO_PROCESS);
     EXPECT_EQ(mCb->mVendorCode, 0);
 }

 TEST_P(Face, GenerateChallengeProducesUniqueChallengesTest) {
     static constexpr int kIterations = 100;

     auto challenges = std::set<int>{};
     for (unsigned int i = 0; i < kIterations; ++i) {
         // Call the method.
         ASSERT_TRUE(mSession->generateChallenge().isOk());

         // Check that the generated challenge is unique and not 0.
         auto lock = std::unique_lock{mCb->mMutex};
         mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeGeneratedInvoked; });
         ASSERT_NE(mCb->mGeneratedChallenge, 0);
         ASSERT_EQ(challenges.find(mCb->mGeneratedChallenge), challenges.end());

         challenges.insert(mCb->mGeneratedChallenge);
         mCb->mOnChallengeGeneratedInvoked = false;
     }
 }

 TEST_P(Face, RevokeChallengeWorksForNonexistentChallengeTest) {
     const int64_t nonexistentChallenge = 123;

     // Call the method.
     ASSERT_TRUE(mSession->revokeChallenge(nonexistentChallenge).isOk());

     // Check that the challenge is revoked and matches the requested challenge.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeRevokedInvoked; });
     ASSERT_EQ(mCb->mRevokedChallenge, nonexistentChallenge);
 }

 TEST_P(Face, RevokeChallengeWorksForExistentChallengeTest) {
     // Generate a challenge.
     ASSERT_TRUE(mSession->generateChallenge().isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeGeneratedInvoked; });
     lock.unlock();

     // Revoke the challenge.
     ASSERT_TRUE(mSession->revokeChallenge(mCb->mGeneratedChallenge).isOk());

     // Check that the challenge is revoked and matches the requested challenge.
     lock.lock();
     mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeRevokedInvoked; });
     ASSERT_EQ(mCb->mRevokedChallenge, mCb->mGeneratedChallenge);
 }

 TEST_P(Face, EnumerateEnrollmentsWorksTest) {
     // Call the method.
     ASSERT_TRUE(mSession->enumerateEnrollments().isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnEnrollmentsEnumeratedInvoked; });
 }

 TEST_P(Face, RemoveEnrollmentsWorksTest) {
     // Call the method.
     ASSERT_TRUE(mSession->removeEnrollments({}).isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnEnrollmentsRemovedInvoked; });
 }

 TEST_P(Face, GetFeaturesWithoutEnrollmentsResultsInUnableToProcess) {
     // Call the method.
     ASSERT_TRUE(mSession->getFeatures().isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnErrorInvoked; });
     EXPECT_EQ(mCb->mError, Error::UNABLE_TO_PROCESS);
     EXPECT_EQ(mCb->mVendorCode, 0);
 }

 TEST_P(Face, GetAuthenticatorIdWorksTest) {
     // Call the method.
     ASSERT_TRUE(mSession->getAuthenticatorId().isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnAuthenticatorIdRetrievedInvoked; });
 }

 TEST_P(Face, InvalidateAuthenticatorIdWorksTest) {
     // Call the method.
     ASSERT_TRUE(mSession->invalidateAuthenticatorId().isOk());

     // Wait for the result.
     auto lock = std::unique_lock{mCb->mMutex};
     mCb->mCv.wait(lock, [this] { return mCb->mOnAuthenticatorIdInvalidatedInvoked; });
 }

 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(Face);
 INSTANTIATE_TEST_SUITE_P(IFace, Face,
                          testing::ValuesIn(::android::getAidlHalInstanceNames(IFace::descriptor)),
                          ::android::PrintInstanceNameToString);

 }  // namespace
 }  // namespace aidl::android::hardware::biometrics::face

 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
     ABinderProcess_setThreadPoolMaxThreadCount(1);
     ABinderProcess_startThreadPool();
     return RUN_ALL_TESTS();
 }
	/*
	* Copyright (C) 2020 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.
	*/
	#include <aidl/Gtest.h>
	#include <aidl/Vintf.h>
	#include <aidl/android/hardware/biometrics/face/BnFace.h>
	#include <aidl/android/hardware/biometrics/face/BnSessionCallback.h>

	#include <android/binder_manager.h>
	#include <android/binder_process.h>

	#include <chrono>
	#include <future>

	namespace aidl::android::hardware::biometrics::face {
	namespace {

	using namespace std::literals::chrono_literals;

	using aidl::android::hardware::common::NativeHandle;

	constexpr int kSensorId = 0;
	constexpr int kUserId = 0;

	class SessionCallback : public BnSessionCallback {
	public:
	ndk::ScopedAStatus onChallengeGenerated(int64_t challenge) override {
	auto lock = std::lock_guard{mMutex};
	mOnChallengeGeneratedInvoked = true;
	mGeneratedChallenge = challenge;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onChallengeRevoked(int64_t challenge) override {
	auto lock = std::lock_guard{mMutex};
	mOnChallengeRevokedInvoked = true;
	mRevokedChallenge = challenge;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onAuthenticationFrame(const AuthenticationFrame& /frame/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onEnrollmentFrame(const EnrollmentFrame& /frame/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onError(Error error, int32_t vendorCode) override {
	auto lock = std::lock_guard<std::mutex>{mMutex};
	mError = error;
	mVendorCode = vendorCode;
	mOnErrorInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onEnrollmentProgress(int32_t /enrollmentId/,
	int32_t /remaining/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onAuthenticationSucceeded(
	int32_t /enrollmentId/, const keymaster::HardwareAuthToken& /hat/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onAuthenticationFailed() override { return ndk::ScopedAStatus::ok(); }

	ndk::ScopedAStatus onLockoutTimed(int64_t /durationMillis/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onLockoutPermanent() override { return ndk::ScopedAStatus::ok(); }

	ndk::ScopedAStatus onLockoutCleared() override { return ndk::ScopedAStatus::ok(); }

	ndk::ScopedAStatus onInteractionDetected() override { return ndk::ScopedAStatus::ok(); }

	ndk::ScopedAStatus onEnrollmentsEnumerated(
	const std::vector<int32_t>& /enrollmentIds/) override {
	auto lock = std::lock_guard{mMutex};
	mOnEnrollmentsEnumeratedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onEnrollmentsRemoved(
	const std::vector<int32_t>& /enrollmentIds/) override {
	auto lock = std::lock_guard{mMutex};
	mOnEnrollmentsRemovedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onFeaturesRetrieved(const std::vector<Feature>& /features/) override {
	auto lock = std::lock_guard{mMutex};
	mOnFeaturesRetrievedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onFeatureSet(Feature /feature/) override {
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onAuthenticatorIdRetrieved(int64_t /authenticatorId/) override {
	auto lock = std::lock_guard{mMutex};
	mOnAuthenticatorIdRetrievedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onAuthenticatorIdInvalidated(int64_t /newAuthenticatorId/) override {
	auto lock = std::lock_guard{mMutex};
	mOnAuthenticatorIdInvalidatedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	ndk::ScopedAStatus onSessionClosed() override {
	auto lock = std::lock_guard<std::mutex>{mMutex};
	mOnSessionClosedInvoked = true;
	mCv.notify_one();
	return ndk::ScopedAStatus::ok();
	}

	std::mutex mMutex;
	std::condition_variable mCv;
	Error mError = Error::UNKNOWN;
	int32_t mVendorCode = 0;
	int64_t mGeneratedChallenge = 0;
	int64_t mRevokedChallenge = 0;
	bool mOnChallengeGeneratedInvoked = false;
	bool mOnChallengeRevokedInvoked = false;
	bool mOnErrorInvoked = false;
	bool mOnEnrollmentsEnumeratedInvoked = false;
	bool mOnEnrollmentsRemovedInvoked = false;
	bool mOnFeaturesRetrievedInvoked = false;
	bool mOnAuthenticatorIdRetrievedInvoked = false;
	bool mOnAuthenticatorIdInvalidatedInvoked = false;
	bool mOnSessionClosedInvoked = false;
	};

	class Face : public testing::TestWithParam<std::string> {
	protected:
	void SetUp() override {
	// Prepare the callback.
	mCb = ndk::SharedRefBase::make<SessionCallback>();

	int retries = 0;
	bool isOk = false;
	// If the first attempt to create a session fails, we try to create a session again. The
	// first attempt might fail if the framework already has an active session. The AIDL
	// contract doesn't allow to create a new session without closing the old one. However, we
	// can't close the framework's session from VTS. The expectation here is that the HAL will
	// crash after the first illegal attempt to create a session, then it will restart, and then
	// we'll be able to create a session.
	do {
	// Get an instance of the HAL.
	AIBinder* binder = AServiceManager_waitForService(GetParam().c_str());
	ASSERT_NE(binder, nullptr);
	mHal = IFace::fromBinder(ndk::SpAIBinder(binder));

	// Create a session.
	isOk = mHal->createSession(kSensorId, kUserId, mCb, &mSession).isOk();
	++retries;
	} while (!isOk && retries < 2);

	ASSERT_TRUE(isOk);
	}

	void TearDown() override {
	// Close the mSession.
	ASSERT_TRUE(mSession->close().isOk());

	// Make sure the mSession is closed.
	auto lock = std::unique_lock<std::mutex>(mCb->mMutex);
	mCb->mCv.wait(lock, [this] { return mCb->mOnSessionClosedInvoked; });
	}

	std::shared_ptr<IFace> mHal;
	std::shared_ptr<SessionCallback> mCb;
	std::shared_ptr<ISession> mSession;
	};

	TEST_P(Face, GetSensorPropsWorksTest) {
	std::vector<SensorProps> sensorProps;

	// Call the method.
	ASSERT_TRUE(mHal->getSensorProps(&sensorProps).isOk());

	// Make sure the sensorProps aren't empty.
	ASSERT_FALSE(sensorProps.empty());
	ASSERT_FALSE(sensorProps[0].commonProps.componentInfo.empty());
	}

	TEST_P(Face, EnrollWithBadHatResultsInErrorTest) {
	// Call the method.
	auto hat = keymaster::HardwareAuthToken{};
	std::shared_ptr<common::ICancellationSignal> cancellationSignal;
	ASSERT_TRUE(
	mSession->enroll(hat, EnrollmentType::DEFAULT, {}, std::nullopt, &cancellationSignal)
	.isOk());

	// Make sure an error is returned.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnErrorInvoked; });
	EXPECT_EQ(mCb->mError, Error::UNABLE_TO_PROCESS);
	EXPECT_EQ(mCb->mVendorCode, 0);
	}

	TEST_P(Face, GenerateChallengeProducesUniqueChallengesTest) {
	static constexpr int kIterations = 100;

	auto challenges = std::set<int>{};
	for (unsigned int i = 0; i < kIterations; ++i) {
	// Call the method.
	ASSERT_TRUE(mSession->generateChallenge().isOk());

	// Check that the generated challenge is unique and not 0.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeGeneratedInvoked; });
	ASSERT_NE(mCb->mGeneratedChallenge, 0);
	ASSERT_EQ(challenges.find(mCb->mGeneratedChallenge), challenges.end());

	challenges.insert(mCb->mGeneratedChallenge);
	mCb->mOnChallengeGeneratedInvoked = false;
	}
	}

	TEST_P(Face, RevokeChallengeWorksForNonexistentChallengeTest) {
	const int64_t nonexistentChallenge = 123;

	// Call the method.
	ASSERT_TRUE(mSession->revokeChallenge(nonexistentChallenge).isOk());

	// Check that the challenge is revoked and matches the requested challenge.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeRevokedInvoked; });
	ASSERT_EQ(mCb->mRevokedChallenge, nonexistentChallenge);
	}

	TEST_P(Face, RevokeChallengeWorksForExistentChallengeTest) {
	// Generate a challenge.
	ASSERT_TRUE(mSession->generateChallenge().isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeGeneratedInvoked; });
	lock.unlock();

	// Revoke the challenge.
	ASSERT_TRUE(mSession->revokeChallenge(mCb->mGeneratedChallenge).isOk());

	// Check that the challenge is revoked and matches the requested challenge.
	lock.lock();
	mCb->mCv.wait(lock, [this] { return mCb->mOnChallengeRevokedInvoked; });
	ASSERT_EQ(mCb->mRevokedChallenge, mCb->mGeneratedChallenge);
	}

	TEST_P(Face, EnumerateEnrollmentsWorksTest) {
	// Call the method.
	ASSERT_TRUE(mSession->enumerateEnrollments().isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnEnrollmentsEnumeratedInvoked; });
	}

	TEST_P(Face, RemoveEnrollmentsWorksTest) {
	// Call the method.
	ASSERT_TRUE(mSession->removeEnrollments({}).isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnEnrollmentsRemovedInvoked; });
	}

	TEST_P(Face, GetFeaturesWithoutEnrollmentsResultsInUnableToProcess) {
	// Call the method.
	ASSERT_TRUE(mSession->getFeatures().isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnErrorInvoked; });
	EXPECT_EQ(mCb->mError, Error::UNABLE_TO_PROCESS);
	EXPECT_EQ(mCb->mVendorCode, 0);
	}

	TEST_P(Face, GetAuthenticatorIdWorksTest) {
	// Call the method.
	ASSERT_TRUE(mSession->getAuthenticatorId().isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnAuthenticatorIdRetrievedInvoked; });
	}

	TEST_P(Face, InvalidateAuthenticatorIdWorksTest) {
	// Call the method.
	ASSERT_TRUE(mSession->invalidateAuthenticatorId().isOk());

	// Wait for the result.
	auto lock = std::unique_lock{mCb->mMutex};
	mCb->mCv.wait(lock, [this] { return mCb->mOnAuthenticatorIdInvalidatedInvoked; });
	}

	GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(Face);
	INSTANTIATE_TEST_SUITE_P(IFace, Face,
	testing::ValuesIn(::android::getAidlHalInstanceNames(IFace::descriptor)),
	::android::PrintInstanceNameToString);

	} // namespace
	} // namespace aidl::android::hardware::biometrics::face

	int main(int argc, char** argv) {
	::testing::InitGoogleTest(&argc, argv);
	ABinderProcess_setThreadPoolMaxThreadCount(1);
	ABinderProcess_startThreadPool();
	return RUN_ALL_TESTS();
	}