Add VTS tests for IFingerprint

cc_test {

    name: "VtsHalBiometricsFingerprintTargetTest",

    defaults: [

        "VtsHalTargetTestDefaults",

        "use_libaidlvintf_gtest_helper_static",

    ],

    srcs: ["VtsHalBiometricsFingerprintTargetTest.cpp"],

    shared_libs: [

        "libbinder_ndk",

        "android.hardware.biometrics.fingerprint-ndk_platform",

    ],

    test_suites: [

        "general-tests",

        "vts",

    ],

}

/*

 * 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/fingerprint/BnFingerprint.h>

#include <aidl/android/hardware/biometrics/fingerprint/BnSessionCallback.h>

#include <android/binder_manager.h>

#include <android/binder_process.h>

#include <future>

namespace aidl::android::hardware::biometrics::fingerprint {

namespace {

constexpr int kSensorId = 0;

constexpr int kUserId = 0;

constexpr auto kCallbackTimeout = std::chrono::seconds(1);

enum class SessionCallbackMethodName {

    kOnStateChanged,

};

struct SessionCallbackInvocation {

    SessionCallbackMethodName method_name;

    SessionState state;

};

class SessionCallback : public BnSessionCallback {

  public:

    explicit SessionCallback(std::promise<SessionCallbackInvocation> invocation_promise)

        : invocation_promise_(std::move(invocation_promise)) {}

    ndk::ScopedAStatus onStateChanged(int32_t /*cookie*/, SessionState state) override {

        SessionCallbackInvocation invocation = {};

        invocation.method_name = SessionCallbackMethodName::kOnStateChanged;

        invocation.state = state;

        invocation_promise_.set_value(invocation);

        return ndk::ScopedAStatus::ok();

    }

    ndk::ScopedAStatus onAcquired(AcquiredInfo /*info*/, int32_t /*vendorCode*/) override {

        return ndk::ScopedAStatus::ok();

    }

    ndk::ScopedAStatus onError(Error /*error*/, int32_t /*vendorCode*/) override {

        return ndk::ScopedAStatus::ok();

    }

    ndk::ScopedAStatus onEnrollmentProgress(int32_t /*enrollmentId*/, int32_t /*remaining*/,

                                            int32_t /*vendorCode*/) override {

        return ndk::ScopedAStatus::ok();

    }

    ndk::ScopedAStatus onAuthenticated(int32_t /*enrollmentId*/,

                                       const keymaster::HardwareAuthToken& /*hat*/) override {

        return ndk::ScopedAStatus::ok();

    }

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

    ndk::ScopedAStatus onEnrollmentsEnumerated(

            const std::vector<int32_t>& /*enrollmentIds*/) override {

        return ndk::ScopedAStatus::ok();

    }

    ndk::ScopedAStatus onEnrollmentsRemoved(

            const std::vector<int32_t>& /*enrollmentIds*/) override {

        return ndk::ScopedAStatus::ok();

    }

  private:

    std::promise<SessionCallbackInvocation> invocation_promise_;

};

class Fingerprint : public testing::TestWithParam<std::string> {

  protected:

    void SetUp() override {

        AIBinder* binder = AServiceManager_waitForService(GetParam().c_str());

        ASSERT_NE(binder, nullptr);

        hal_ = IFingerprint::fromBinder(ndk::SpAIBinder(binder));

    }

    std::shared_ptr<IFingerprint> hal_;

};

TEST_P(Fingerprint, AuthenticateTest) {

    std::promise<SessionCallbackInvocation> invocation_promise;

    std::future<SessionCallbackInvocation> invocation_future = invocation_promise.get_future();

    std::shared_ptr<SessionCallback> session_cb =

            ndk::SharedRefBase::make<SessionCallback>(std::move(invocation_promise));

    std::shared_ptr<ISession> session;

    ASSERT_TRUE(hal_->createSession(kSensorId, kUserId, session_cb, &session).isOk());

    std::shared_ptr<ICancellationSignal> cancel_cb;

    ASSERT_TRUE(session->authenticate(0, 0, &cancel_cb).isOk());

    ASSERT_EQ(invocation_future.wait_for(kCallbackTimeout), std::future_status::ready);

    SessionCallbackInvocation invocation = invocation_future.get();

    EXPECT_EQ(invocation.method_name, SessionCallbackMethodName::kOnStateChanged);

    EXPECT_EQ(invocation.state, SessionState::AUTHENTICATING);

}

GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(Fingerprint);

INSTANTIATE_TEST_SUITE_P(

        IFingerprint, Fingerprint,

        testing::ValuesIn(::android::getAidlHalInstanceNames(IFingerprint::descriptor)),

        ::android::PrintInstanceNameToString);

}  // namespace

int main(int argc, char** argv) {

    ::testing::InitGoogleTest(&argc, argv);

    ABinderProcess_setThreadPoolMaxThreadCount(1);

    ABinderProcess_startThreadPool();

    return RUN_ALL_TESTS();

}

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