/* Copyright (c) 2015, 2016 Oracle and/or its affiliates. All rights reserved.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; version 2 of the License.

 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 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 "ngs/mysqlx/getter_any.h"
#include <gtest/gtest.h>
#include <gmock/gmock.h>


namespace ngs
{

namespace test
{


using namespace Mysqlx::Datatypes;

class Type_handler
{
public:
  virtual ~Type_handler() {}

  virtual void put(const ::google::protobuf::int64 &value) = 0;
  virtual void put(const ::google::protobuf::uint64 &value) = 0;
  virtual void put(const double &value) = 0;
  virtual void put(const float &value) = 0;
  virtual void put(const bool &value) = 0;
  virtual void put(const std::string &value) = 0;
  virtual void put() = 0;
};

class Mock_type_handler : public Type_handler
{
public:
  // Workaround for GMOCK undefined behaviour with ResultHolder
  MOCK_METHOD1(put_void, bool (const ::google::protobuf::int64 &));
  MOCK_METHOD1(put_void, bool (const ::google::protobuf::uint64 &));
  MOCK_METHOD1(put_void, bool (const double &));
  MOCK_METHOD1(put_void, bool (const float &));
  MOCK_METHOD1(put_void, bool (const bool &));
  MOCK_METHOD1(put_void, bool (const std::string &));
  MOCK_METHOD0(put_void, bool ());

  void put(const ::google::protobuf::int64 &arg)
  {
    put_void(arg);
  }

  void put(const ::google::protobuf::uint64 &arg)
  {
    put_void(arg);
  }

  void put(const double &arg)
  {
    put_void(arg);
  }

  void put(const float &arg)
  {
    put_void(arg);
  }

  void put(const bool &arg)
  {
    put_void(arg);
  }

  void put(const std::string &arg)
  {
    put_void(arg);
  }

  void put()
  {
    put_void();
  }
};

class Getter_any_testsuite : public ::testing::Test
{
public:
  template <typename Value_type>
  void operator() (const Value_type &value)
  {
    mock.put(value);
  }

  void operator() ()
  {
    mock.put();
  }

  Mock_type_handler mock;
  Any any;
};

TEST_F(Getter_any_testsuite, put_throwError_whenPutAnyWithoutType)
{
  ASSERT_THROW(Getter_any::put_scalar_value_to_functor( any, *this), Error_code);
}


TEST_F(Getter_any_testsuite, put_executesNullCallback)
{
  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_NULL);

  EXPECT_CALL(mock, put_void());

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesSignedIntCallback)
{
  const ::google::protobuf::int64 expected_value = -10;

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_SINT);
  any.mutable_scalar()->set_v_signed_int(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const ::google::protobuf::int64 &>(expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesUnsignedIntCallback)
{
  ::google::protobuf::uint64 expected_value = 10;

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_UINT);
  any.mutable_scalar()->set_v_unsigned_int(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const ::google::protobuf::uint64 &>(expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesBoolCallback)
{
  bool expected_value = true;

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_BOOL);
  any.mutable_scalar()->set_v_bool(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const bool &> (expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesFloatCallback)
{
  float expected_value = 1.120f;

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_FLOAT);
  any.mutable_scalar()->set_v_float(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const float &> (expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesDoubleCallback)
{
  double expected_value = 2.2120;

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_DOUBLE);
  any.mutable_scalar()->set_v_double(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const double &> (expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_throwsError_whenStringWithoutValue)
{
  std::string expected_value = "Expected string";

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_STRING);
  any.mutable_scalar()->mutable_v_string();

  ASSERT_THROW(Getter_any::put_scalar_value_to_functor( any, *this), Error_code);
}

TEST_F(Getter_any_testsuite, put_executesStringCallback)
{
  std::string expected_value = "Expected string";

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_STRING);
  any.mutable_scalar()->mutable_v_string()->set_value(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const std::string &> (expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

TEST_F(Getter_any_testsuite, put_executesOctetsCallback)
{
  std::string expected_value = "Expected string";

  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(Scalar_Type_V_OCTETS);
  any.mutable_scalar()->mutable_v_octets()->set_value(expected_value);

  EXPECT_CALL(mock, put_void(::testing::Matcher< const std::string &> (expected_value)));

  Getter_any::put_scalar_value_to_functor( any, *this);
}

class Getter_any_type_testsuite : public Getter_any_testsuite, public ::testing::WithParamInterface<Any_Type> {};

TEST_P(Getter_any_type_testsuite, put_throwError_whenNotSupportedType)
{
  any.set_type(GetParam());

  ASSERT_THROW(Getter_any::put_scalar_value_to_functor( any, *this), Error_code);
}

INSTANTIATE_TEST_CASE_P(InstantiationNegativeTests,
    Getter_any_type_testsuite,
    ::testing::Values(Any_Type_OBJECT, Any_Type_ARRAY));

class Getter_scalar_type_testsuite : public Getter_any_testsuite, public ::testing::WithParamInterface<Scalar_Type> {};

TEST_P(Getter_scalar_type_testsuite, put_throwError_whenNotSupportedType)
{
  any.set_type(Any_Type_SCALAR);
  any.mutable_scalar()->set_type(GetParam());

  ASSERT_THROW(Getter_any::put_scalar_value_to_functor( any, *this), Error_code);
}

INSTANTIATE_TEST_CASE_P(InstantiationNegativeTests,
    Getter_scalar_type_testsuite,
    ::testing::Values(Scalar_Type_V_SINT, Scalar_Type_V_UINT, Scalar_Type_V_BOOL, Scalar_Type_V_FLOAT, Scalar_Type_V_DOUBLE, Scalar_Type_V_STRING, Scalar_Type_V_OCTETS));


} // namespace test

} // namespace ngs
