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// Copyright (C) 2022 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Kea Hooks Basic
// Commercial End User License Agreement v2.0. See COPYING file in the premium/
// directory.

/// @file This file contains tests which exercise the load and unload
/// functions in the ddns tuning hook library. In order to test the load
/// function, one must be able to pass it hook library parameters. The
/// the only way to populate these parameters is by actually loading the
/// library via HooksManager::loadLibraries().

#include <config.h>

#include <cc/data.h>
#include <dhcpsrv/cfgmgr.h>
#include <hooks/hooks_manager.h>
#include <process/daemon.h>
#include <testutils/lib_load_test_fixture.h>

#include <gtest/gtest.h><--- Include file:  not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <errno.h><--- Include file:  not found. Please note: Cppcheck does not need standard library headers to get proper results.

using namespace std;
using namespace isc;
using namespace isc::hooks;
using namespace isc::data;
using namespace isc::dhcp;
using namespace isc::process;

namespace {

/// @brief Test fixture for testing loading and unloading the ddns tuning library
class DdnsTuningLibLoadTest : public isc::test::LibLoadTest {
public:
    /// @brief Constructor
    DdnsTuningLibLoadTest() : LibLoadTest(DDNS_TUNING_LIB_SO) {
    }

    /// @brief Destructor
    virtual ~DdnsTuningLibLoadTest() {
    }

    /// @brief Creates valid configuration.
    /// @todo Find an expression working on v6 too.
    virtual ElementPtr validConfigParams() {
        ElementPtr params = Element::createMap();
        params->set("hostname-expr",
                    Element::create("addrtotext(pkt4.yiaddr)"));
        return (params);
    }
};

// Simple V4 test that checks the library can be loaded and unloaded several times.
TEST_F(DdnsTuningLibLoadTest, validLoad4) {<--- syntax error
    validDaemonTest("kea-dhcp4", AF_INET, valid_params_);
}

// Simple V6 test that checks the library can be loaded and unloaded several times.
TEST_F(DdnsTuningLibLoadTest, validLoad6) {
    validDaemonTest("kea-dhcp6", AF_INET6, valid_params_);
}

// Simple test that checks the library cannot by loaded by invalid daemons.
TEST_F(DdnsTuningLibLoadTest, invalidDaemonLoad) {
    // V4 is invalid when family is AF_INET6.
    invalidDaemonTest("kea-dhcp4", AF_INET6, valid_params_);

    // V6 is invalid when family is AF_INET.
    invalidDaemonTest("kea-dhcp6", AF_INET, valid_params_);

    invalidDaemonTest("kea-ctrl-agent", AF_INET, valid_params_);
    invalidDaemonTest("kea-dhcp-ddns", AF_INET, valid_params_);
    invalidDaemonTest("bogus", AF_INET, valid_params_);
}

} // end of anonymous namespace