/* Copyright (c) 2015, 2023, Oracle and/or its affiliates.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License, version 2.0,
 as published by the Free Software Foundation.

 This program is also distributed with certain software (including
 but not limited to OpenSSL) that is licensed under separate terms,
 as designated in a particular file or component or in included license
 documentation.  The authors of MySQL hereby grant you an additional
 permission to link the program and your derivative works with the
 separately licensed software that they have included with MySQL.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License, version 2.0, for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */


#include <gtest/gtest.h>
#include <gmock/gmock.h>

#include "ngs/capabilities/handler_tls.h"
#include "ngs/capabilities/handler_auth_mech.h"
#include "mock/session.h"
#include "mock/capabilities.h"
#include "mock/ngs_general.h"


namespace ngs
{

namespace test
{


using namespace ::testing;
using ::Mysqlx::Datatypes::Any;
using ::Mysqlx::Datatypes::Scalar;

class No_delete
{
public:
  template <typename T>
  void operator() (T *memory)
  {
  }
};

class CapabilityHanderTlsTestSuite : public Test
{
public:
  CapabilityHanderTlsTestSuite()
  : sut(mock_client)
  {
    mock_options.reset(new StrictMock<Mock_options_session>());
    EXPECT_CALL(mock_client, connection()).WillRepeatedly(ReturnRef(mock_connection));
    EXPECT_CALL(mock_connection, options()).WillRepeatedly(Return(IOptions_session_ptr(mock_options.get(), No_delete())));
  }

  StrictMock<Mock_connection>        mock_connection;
  ngs::shared_ptr<Mock_options_session>    mock_options;
  StrictMock<xpl::test::Mock_client> mock_client;

  Capability_tls                     sut;
};


TEST_F(CapabilityHanderTlsTestSuite, isSupported_returnsCurrentConnectionOption_on_supported_connection_type)
{
  EXPECT_CALL(*mock_options, supports_tls()).WillOnce(Return(true)).WillOnce(Return(false));
  EXPECT_CALL(mock_connection, connection_type()).WillOnce(Return(Connection_tcpip)).WillOnce(Return(Connection_tcpip));

  ASSERT_TRUE(sut.is_supported());
  ASSERT_FALSE(sut.is_supported());
}

TEST_F(CapabilityHanderTlsTestSuite, isSupported_returnsFailure_on_unsupported_connection_type)
{
  EXPECT_CALL(*mock_options, supports_tls()).WillOnce(Return(true)).WillOnce(Return(false));
  EXPECT_CALL(mock_connection, connection_type()).WillOnce(Return(Connection_namedpipe)).WillOnce(Return(Connection_namedpipe));

  ASSERT_FALSE(sut.is_supported());
  ASSERT_FALSE(sut.is_supported());
}


TEST_F(CapabilityHanderTlsTestSuite, name_returnsTls_always)
{
  ASSERT_STREQ("tls", sut.name().c_str());
}


TEST_F(CapabilityHanderTlsTestSuite, get_returnsCurrentConnectionOption_always)
{
  const bool  expected_result = true;
  Any         any;

  EXPECT_CALL(*mock_options, active_tls()).WillOnce(Return(expected_result));

  sut.get(any);

  ASSERT_EQ(Any::SCALAR,     any.type());
  ASSERT_EQ(Scalar::V_BOOL,  any.scalar().type());
  ASSERT_EQ(expected_result, any.scalar().v_bool());
}


class Set_params
{
public:
  Set_params(bool any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_BOOL);
    m_any.mutable_scalar()->set_v_bool(any);

    m_tls_active = tls;
  }

  Set_params(int any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_SINT);
    m_any.mutable_scalar()->set_v_signed_int(any);

    m_tls_active = tls;
  }

  Set_params(unsigned int any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_UINT);
    m_any.mutable_scalar()->set_v_unsigned_int(any);

    m_tls_active = tls;
  }

  Set_params(float any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_FLOAT);
    m_any.mutable_scalar()->set_v_float(any);

    m_tls_active = tls;
  }

  Set_params(double any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_DOUBLE);
    m_any.mutable_scalar()->set_v_double(any);

    m_tls_active = tls;
  }

  Set_params(const char *any, bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_STRING);
    m_any.mutable_scalar()->mutable_v_string()->set_value(any);

    m_tls_active = tls;
  }

  Set_params(bool tls): m_tls_active(tls)
  {
    m_any.mutable_scalar()->set_type(Scalar::V_NULL);

    m_tls_active = tls;
  }

  Set_params(const Set_params &other)
  : m_any(other.m_any), m_tls_active(other.m_tls_active)
  {}

  Any  m_any;
  bool m_tls_active;
};

::std::ostream& operator<<(::std::ostream& os, const Set_params& set_param)
{
  return os << "tls-active:" << set_param.m_tls_active << std::endl;
}



class SuccessSetCapabilityHanderTlsTestSuite : public CapabilityHanderTlsTestSuite , public WithParamInterface<Set_params>
{
public:
};


TEST_P(SuccessSetCapabilityHanderTlsTestSuite, get_success_forValidParametersAndTlsSupportedOnTcpip)
{
  Set_params s = GetParam();

  EXPECT_CALL(*mock_options, active_tls()).WillOnce(Return(s.m_tls_active));
  EXPECT_CALL(*mock_options, supports_tls()).WillOnce(Return(true));
  EXPECT_CALL(mock_connection, connection_type()).WillOnce(Return(Connection_tcpip));

  ASSERT_TRUE(sut.set(s.m_any));

  EXPECT_CALL(mock_client, activate_tls_void());

  sut.commit();
}

TEST_P(SuccessSetCapabilityHanderTlsTestSuite, get_failure_forValidParametersAndTlsSupportedOnNamedPipe)
{
  Set_params s = GetParam();

  EXPECT_CALL(*mock_options, active_tls()).WillOnce(Return(s.m_tls_active));
  EXPECT_CALL(*mock_options, supports_tls()).WillOnce(Return(true));
  EXPECT_CALL(mock_connection, connection_type()).WillOnce(Return(Connection_namedpipe));

  ASSERT_FALSE(sut.set(s.m_any));
}

TEST_P(SuccessSetCapabilityHanderTlsTestSuite, get_failure_forValidParametersAndTlsIsntSupported)
{
  Set_params s = GetParam();

  EXPECT_CALL(*mock_options, active_tls()).WillOnce(Return(s.m_tls_active));
  EXPECT_CALL(*mock_options, supports_tls()).WillOnce(Return(false));
  EXPECT_CALL(mock_connection, connection_type()).WillOnce(Return(Connection_tcpip));

  ASSERT_FALSE(sut.set(s.m_any));
}


INSTANTIATE_TEST_CASE_P(SuccessInstantiation, SuccessSetCapabilityHanderTlsTestSuite,
                        ::testing::Values(Set_params(true, false),
                                          Set_params(1,    false),
                                          Set_params(2,    false),
                                          Set_params(3u,   false),
                                          Set_params(1.0,  false)));


class FaildSetCapabilityHanderTlsTestSuite : public SuccessSetCapabilityHanderTlsTestSuite {};


TEST_P(FaildSetCapabilityHanderTlsTestSuite, get_failure_forValidParameters)
{
  Set_params s = GetParam();

  EXPECT_CALL(*mock_options, active_tls()).WillOnce(Return(s.m_tls_active));

  ASSERT_FALSE(sut.set(s.m_any));

  sut.commit();
}


INSTANTIATE_TEST_CASE_P(FaildInstantiationAlreadySet, FaildSetCapabilityHanderTlsTestSuite,
                        ::testing::Values(Set_params(true, true),
                                          Set_params(1,    true),
                                          Set_params(2,    true),
                                          Set_params(3u,   true),
                                          Set_params(1.0,  true)));


INSTANTIATE_TEST_CASE_P(FaildInstantiationCantDisable, FaildSetCapabilityHanderTlsTestSuite,
                        ::testing::Values(Set_params(false, true),
                                          Set_params(0,     true),
                                          Set_params(0u,    true),
                                          Set_params(0.0,   true)));


INSTANTIATE_TEST_CASE_P(FaildInstantiationAlreadyDisabled, FaildSetCapabilityHanderTlsTestSuite,
                        ::testing::Values(Set_params(0,     false),
                                          Set_params(false, false)));


class CapabilityHanderAuthMechTestSuite : public Test
{
public:
  CapabilityHanderAuthMechTestSuite()
  : sut(mock_client)
  {
    mock_server = ngs::make_shared< StrictMock<Mock_server> >();

    EXPECT_CALL(mock_client, connection()).WillRepeatedly(ReturnRef(mock_connection));
    EXPECT_CALL(mock_client, server()).WillRepeatedly(ReturnRef(*mock_server));
  }

  ngs::shared_ptr<StrictMock<Mock_server> > mock_server;

  StrictMock<Mock_connection>        mock_connection;
  StrictMock<xpl::test::Mock_client> mock_client;

  Capability_auth_mech sut;
};


TEST_F(CapabilityHanderAuthMechTestSuite, isSupported_returnsTrue_always)
{
  ASSERT_TRUE(sut.is_supported());
}


TEST_F(CapabilityHanderAuthMechTestSuite, set_returnsFalse_always)
{
  Set_params set(1, false);

  ASSERT_FALSE(sut.set(set.m_any));
}


TEST_F(CapabilityHanderAuthMechTestSuite, commit_doesNothing_always)
{
  sut.commit();
}


TEST_F(CapabilityHanderAuthMechTestSuite, name)
{
  ASSERT_STREQ("authentication.mechanisms", sut.name().c_str());
}


TEST_F(CapabilityHanderAuthMechTestSuite, get_doesNothing_whenEmptySetReceive)
{
  std::vector<std::string> names;
  Any any;

  //EXPECT_CALL(mock_connection, is_option_set(Connection::Option_active_tls)).WillOnce(Return(true));
  EXPECT_CALL(*mock_server, get_authentication_mechanisms_void(_, Ref(mock_client))).WillOnce(DoAll(SetArgReferee<0>(names),Return(true)));

  sut.get(any);

  ASSERT_EQ(Any::ARRAY, any.type());
  EXPECT_EQ(0, any.array().value_size());
}


TEST_F(CapabilityHanderAuthMechTestSuite, get_returnAuthMethodsFromServer_always)
{
  std::vector<std::string> names;
  Any any;

  names.push_back("first");
  names.push_back("second");

  EXPECT_CALL(*mock_server, get_authentication_mechanisms_void(_, Ref(mock_client))).WillOnce(DoAll(SetArgReferee<0>(names),Return(true)));

  sut.get(any);

  ASSERT_EQ(Any::ARRAY, any.type());
  ASSERT_EQ(static_cast<int>(names.size()), any.array().value_size());

  for(std::size_t i = 0; i < names.size(); ++i)
  {
    const Any &a = any.array().value(static_cast<int>(i));

    ASSERT_EQ(Any::SCALAR, a.type());
    ASSERT_EQ(Scalar::V_STRING, a.scalar().type());
    ASSERT_STREQ(names[i].c_str(), a.scalar().v_string().value().c_str());
  }
}


} // namespace test

} // namespace ngs