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

#include "mock.h"

using namespace ::testing;
using namespace ::cppamqp;

using StrictAmqpMock = StrictMock<AmqpMock>;

amqp_envelope_t DefaultEnvelope {
    /* .channel */          3,
    /* .consumer_tag */     { 15, const_cast<char*>("my_consumer_tag") },
    /* .delivery_tag */     12345678,
    /* .redelivered */      true,
    /* .exchange */         { 11, const_cast<char*>("my_exchange") },
    /* .routing_key */      { 14, const_cast<char*>("my_routing_key") },
    /* .message */          {
        /* .properties */       {
            /* ._flags */           0,
            /* .content_type */     { 0, nullptr },
            /* .content_encoding */ { 0, nullptr },
            /* .headers */          { 0, nullptr },
            /* .delivery_mode */    0,
            /* .priority */         0,
            /* .correlation_id */   { 0, nullptr },
            /* .reply_to */         { 0, nullptr },
            /* .expiration */       { 0, nullptr },
            /* .message_id */       { 0, nullptr },
            /* .timestamp */        0,
            /* .type */             { 0, nullptr },
            /* .user_id */          { 0, nullptr },
            /* .app_id */           { 0, nullptr },
            /* .cluster_id */       { 0, nullptr },
        },
        /* .body */         { 19, const_cast<char*>("this_is_the_message") },
        /* .pool */         {
            /* .pagesize */     0,
            /* .pages */        { 0, nullptr },
            /* .large_blocks */ { 0, nullptr },
            /* .next_page */    0,
            /* .alloc_block */  nullptr,
            /* .alloc_used */   0
        }
    }
};

bool operator ==(const timeval& a, const timeval& b)
    { return a.tv_sec == b.tv_sec && a.tv_usec == b.tv_usec; }

MATCHER_P(BytesEq, data, "")
{
    if (    data == nullptr
        &&  arg.len == 0)
        return true;
    std::string d(data);
    return arg.len == d.size()
        && memcmp(arg.bytes, d.data(), arg.len) == 0;
}

TEST(AmqpTest, Connection_connect_newConnectionFailed)
{
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_new_connection())
        .WillOnce(Return(nullptr));

    connection con;
    EXPECT_THROW(con.tcp_connect("localhost", 1234), cppamqp::exception);
}

TEST(AmqpTest, Connection_connect_newSocketFailed)
{
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_new_connection())
        .WillOnce(Return(reinterpret_cast<amqp_connection_state_t>(1)));
    EXPECT_CALL(mock, amqp_tcp_socket_new(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(nullptr));
    EXPECT_CALL(mock, amqp_destroy_connection(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(0));

    connection con;
    EXPECT_THROW(con.tcp_connect("localhost", 1234), cppamqp::exception);
}

TEST(AmqpTest, Connection_connect_openSocketFailed)
{
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_new_connection())
        .WillOnce(Return(reinterpret_cast<amqp_connection_state_t>(1)));
    EXPECT_CALL(mock, amqp_tcp_socket_new(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(reinterpret_cast<amqp_socket_t*>(2)));
    EXPECT_CALL(mock, amqp_socket_open(reinterpret_cast<amqp_socket_t*>(2), StrEq("localhost"), 1234))
        .WillOnce(Return(666));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));
    EXPECT_CALL(mock, amqp_destroy_connection(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(0));

    connection con;
    EXPECT_THROW(con.tcp_connect("localhost", 1234), cppamqp::exception);
}

TEST(AmqpTest, Connection_connect_success)
{
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_new_connection())
        .WillOnce(Return(reinterpret_cast<amqp_connection_state_t>(1)));
    EXPECT_CALL(mock, amqp_tcp_socket_new(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(reinterpret_cast<amqp_socket_t*>(2)));
    EXPECT_CALL(mock, amqp_socket_open(reinterpret_cast<amqp_socket_t*>(2), StrEq("localhost"), 1234))
        .WillOnce(Return(0));
    EXPECT_CALL(mock, amqp_connection_close(reinterpret_cast<amqp_connection_state_t>(1), 200))
        .WillOnce(Return(AmqpMock::defaultRpcReply));
    EXPECT_CALL(mock, amqp_destroy_connection(reinterpret_cast<amqp_connection_state_t>(1)))
        .WillOnce(Return(0));

    connection con;
    EXPECT_NO_THROW(con.tcp_connect("localhost", 1234));
}

TEST(AmqpTest, Connection_loginPlain_failed)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_login_plain(AmqpMock::defaultConnectionState, StrEq("vhost"), 100, 200, 0, AMQP_SASL_METHOD_PLAIN, StrEq("username"), StrEq("password")))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(con.login_plain("username", "password", "vhost", 100, 200), cppamqp::exception);
}

TEST(AmqpTest, Connection_loginPlain_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_login_plain(AmqpMock::defaultConnectionState, StrEq("vhost"), 100, 200, 0, AMQP_SASL_METHOD_PLAIN, StrEq("username"), StrEq("password")))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_NO_THROW(con.login_plain("username", "password", "vhost", 100, 200));
}

TEST(AmqpTest, Connection_openChannel_failed)
{
    std::string channelId("test_channel");
    amqp_channel_open_ok_t channelOk { {
        channelId.size(),
        const_cast<char*>(channelId.c_str())
    } };

    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_channel_open(AmqpMock::defaultConnectionState, 3))
        .WillOnce(Return(&channelOk));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(con.open_channel(3), cppamqp::exception);
}

TEST(AmqpTest, Connection_openChannel_success)
{
    std::string channelId("test_channel");
    amqp_channel_open_ok_t channelOk { {
        channelId.size(),
        const_cast<char*>(channelId.c_str())
    } };

    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_channel_open(AmqpMock::defaultConnectionState, 3))
        .WillOnce(Return(&channelOk));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));
    EXPECT_CALL(mock, amqp_channel_close(AmqpMock::defaultConnectionState, 3, AMQP_REPLY_SUCCESS))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_NO_THROW(con.open_channel(3));
}

TEST(AmqpTest, Connection_consumeMessage_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(SetArgPointee<1>(DefaultEnvelope), Return(AmqpMock::defaultRpcReply)));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    auto mr = con.consume_message();
    EXPECT_EQ(consume_result_type::success,           mr.type);
    EXPECT_EQ(std::string("this_is_the_message"),   mr.message.body);
    EXPECT_EQ(3,                                    mr.channel);
    EXPECT_EQ(std::string("my_consumer_tag"),       mr.consumer_tag);
    EXPECT_EQ(12345678,                             mr.delivery_tag);
    EXPECT_EQ(true,                                 mr.redelivered);
    EXPECT_EQ(std::string("my_exchange"),           mr.exchange);
    EXPECT_EQ(std::string("my_routing_key"),        mr.routing_key);
}

TEST(AmqpTest, Connection_consumeMessage_nonLibraryError)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(
            DoAll(SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_SERVER_EXCEPTION),
                { 0, nullptr },
                666 })));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    EXPECT_THROW(con.consume_message(), cppamqp::exception);
}

TEST(AmqpTest, Connection_consumeMessage_nonUnexpectedState)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(
            DoAll(SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                666 })));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    EXPECT_THROW(con.consume_message(), cppamqp::exception);
}

TEST(AmqpTest, Connection_consumeMessage_waitFrameError)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(Return(666));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    EXPECT_THROW(con.consume_message(), cppamqp::exception);
}

TEST(AmqpTest, Connection_consumeMessage_noMethodFrame)
{
    amqp_frame_t frame {
        /* .frame_type */   AMQP_FRAME_HEADER,
        /* .channel */      3,
        /* .payload */      { { 0, nullptr } }
    };

    connection con;
    con.tcp_connect("localhost", 1234);
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(DoAll(
            SetArgPointee<1>(frame),
            Return(0)));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    EXPECT_THROW(con.consume_message(), cppamqp::exception);
}

TEST(AmqpTest, Connection_consumeMessage_ackMessage)
{
    amqp_frame_t frame {
        /* .frame_type */   AMQP_FRAME_METHOD,
        /* .channel */      3,
        /* .payload */      { { AMQP_BASIC_ACK_METHOD, nullptr } }
    };

    connection con;
    con.tcp_connect("localhost", 1234);
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(DoAll(
            SetArgPointee<1>(frame),
            Return(0)));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    auto mr = con.consume_message();
    EXPECT_EQ(consume_result_type::acknowledge, mr.type);
}

TEST(AmqpTest, Connection_consumeMessage_channelClosedMessage)
{
    amqp_frame_t frame {
        /* .frame_type */   AMQP_FRAME_METHOD,
        /* .channel */      3,
        /* .payload */      { { AMQP_CHANNEL_CLOSE_METHOD, nullptr } }
    };

    connection con;
    con.tcp_connect("localhost", 1234);
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(DoAll(
            SetArgPointee<1>(frame),
            Return(0)));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    EXPECT_THROW(con.consume_message(), cppamqp::exception);
}

TEST(AmqpTest, Connection_consumeMessage_connectionClosedMessage)
{
    amqp_frame_t frame {
        /* .frame_type */   AMQP_FRAME_METHOD,
        /* .channel */      3,
        /* .payload */      { { AMQP_CONNECTION_CLOSE_METHOD, nullptr } }
    };

    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(DoAll(
            SetArgPointee<1>(frame),
            Return(0)));
    EXPECT_CALL(mock, amqp_destroy_connection(AmqpMock::defaultConnectionState))
        .WillOnce(Return(0));
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    auto mr = con.consume_message();
    EXPECT_EQ(consume_result_type::connection_closed_by_peer, mr.type);
}

TEST(AmqpTest, Connection_consumeMessage_returnToSender)
{
    amqp_frame_t frame {
        /* .frame_type */   AMQP_FRAME_METHOD,
        /* .channel */      3,
        /* .payload */      { { AMQP_BASIC_RETURN_METHOD, nullptr } }
    };

    connection con;
    con.tcp_connect("localhost", 1234);
    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_maybe_release_buffers(AmqpMock::defaultConnectionState))
        .Times(1);
    EXPECT_CALL(mock, amqp_consume_message(AmqpMock::defaultConnectionState, NotNull(), nullptr, 0))
        .WillOnce(DoAll(
            SetArgPointee<1>(DefaultEnvelope),
            Return(amqp_rpc_reply_t {
                static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
                { 0, nullptr },
                AMQP_STATUS_UNEXPECTED_STATE })));
    EXPECT_CALL(mock, amqp_simple_wait_frame_noblock(AmqpMock::defaultConnectionState, NotNull(), Pointee(timeval { 0, 0 })))
        .WillOnce(DoAll(
            SetArgPointee<1>(frame),
            Return(0)));
    EXPECT_CALL(mock, amqp_read_message(AmqpMock::defaultConnectionState, 3, NotNull(), 0))
        .WillOnce(DoAll(
            SetArgPointee<2>(DefaultEnvelope.message),
            Return(AmqpMock::defaultRpcReply)));
    EXPECT_CALL(mock, amqp_destroy_message(NotNull()))
        .Times(1);
    EXPECT_CALL(mock, amqp_destroy_envelope(NotNull()))
        .Times(1);

    auto mr = con.consume_message();
    EXPECT_EQ(consume_result_type::could_not_deliver_return_to_sender, mr.type);
    EXPECT_EQ(std::string("this_is_the_message"),               mr.message.body);
}

TEST(AmqpTest, Connection_close_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_connection_close(AmqpMock::defaultConnectionState, 123))
        .WillOnce(Return(AmqpMock::defaultRpcReply));
    EXPECT_CALL(mock, amqp_destroy_connection(AmqpMock::defaultConnectionState))
        .WillOnce(Return(0));

    con.close(123);
}

TEST(AmqpTest, Connection_closeForced_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_destroy_connection(AmqpMock::defaultConnectionState))
        .WillOnce(Return(0));

    con.close(123, true);
}

TEST(AmqpTest, Channel_declareQueue_declareFailed)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_queue_declare(AmqpMock::defaultConnectionState, 3, BytesEq("test_queue"), false, true, false, true, _))
        .WillOnce(Return(nullptr));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_THROW(channel.declare_queue("test_queue", queue_flags({ queue_flag::durable, queue_flag::auto_delete })), cppamqp::exception);
}

TEST(AmqpTest, Channel_declareQueue_rpcReplyError)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_queue_declare(AmqpMock::defaultConnectionState, 3, BytesEq("test_queue"), true, false, false, true, _))
        .WillOnce(Return(nullptr));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(channel.declare_queue("test_queue", queue_flags({ queue_flag::passive, queue_flag::auto_delete })), cppamqp::exception);
}

TEST(AmqpTest, Channel_declareQueue_success)
{
    std::string name("blub");
    amqp_queue_declare_ok_t queueDeclareOk {
        { name.size(), const_cast<char*>(name.data()) },
        123,
        456
    };

    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_queue_declare(AmqpMock::defaultConnectionState, 3, BytesEq("test_queue"), true, false, true, false, _))
        .WillOnce(Return(&queueDeclareOk));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    auto qDecl = channel.declare_queue("test_queue", queue_flags({ queue_flag::passive, queue_flag::exclusive }));
    EXPECT_EQ(name, qDecl.name);
    EXPECT_EQ(123,       qDecl.message_count);
    EXPECT_EQ(456,       qDecl.consumer_count);
}

TEST(AmqpTest, Channel_bindQueue_rpcReplyError)
{
    amqp_queue_bind_ok_t dummy { 0 };

    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_queue_bind(AmqpMock::defaultConnectionState, 3, BytesEq("test_queue"), BytesEq("my_exchange"), BytesEq("the_routing_key"), _))
        .WillOnce(Return(&dummy));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(channel.bind_queue("test_queue", "my_exchange", "the_routing_key"), cppamqp::exception);
}

TEST(AmqpTest, Channel_bindQueue_success)
{
    amqp_queue_bind_ok_t dummy { 0 };

    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_queue_bind(AmqpMock::defaultConnectionState, 3, BytesEq("test_queue"), BytesEq("my_exchange"), BytesEq("the_routing_key"), _))
        .WillOnce(Return(&dummy));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_NO_THROW(channel.bind_queue("test_queue", "my_exchange", "the_routing_key"));
}

TEST(AmqpTest, Channel_publish_failed)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_basic_publish(AmqpMock::defaultConnectionState, 3, BytesEq("my_exchange"), BytesEq("my_routing_key"), false, true, nullptr, BytesEq("the_message")))
        .WillOnce(Return(666));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(channel.publish("my_exchange", "my_routing_key", publish_flags({ publish_flag::immediate }), "the_message", nullptr), cppamqp::exception);
}

TEST(AmqpTest, Channel_publish_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_basic_publish(AmqpMock::defaultConnectionState, 3, BytesEq("my_exchange"), BytesEq("my_routing_key"), true, false, NotNull(), BytesEq("the_message")))
        .WillOnce(Return(0));

    publish_options po;
    EXPECT_NO_THROW(channel.publish("my_exchange", "my_routing_key", publish_flags({ publish_flag::mandatory }), "the_message", &po));
}

TEST(AmqpTest, Channel_consume_consumeFailed)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_basic_consume(AmqpMock::defaultConnectionState, 3, BytesEq("my_queue"), BytesEq("my_consumer_tag"), true, false, false, _))
        .WillOnce(Return(nullptr));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_THROW(channel.consume("my_queue", "my_consumer_tag", consume_flags(consume_flag::no_local)), cppamqp::exception);
}

TEST(AmqpTest, Channel_consume_rpcReplyError)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    amqp_basic_consume_ok_t consumeOk { { 7, const_cast<char*>("new_tag") } };

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_basic_consume(AmqpMock::defaultConnectionState, 3, BytesEq("my_queue"), BytesEq("my_consumer_tag"), false, true, false, _))
        .WillOnce(Return(&consumeOk));
    EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(channel.consume("my_queue", "my_consumer_tag", consume_flags(consume_flag::no_ack)), cppamqp::exception);
}

TEST(AmqpTest, Channel_consume_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    amqp_basic_consume_ok_t consumeOk { { 7, const_cast<char*>("new_tag") } };

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_basic_consume(AmqpMock::defaultConnectionState, 3, BytesEq("my_queue"), BytesEq("my_consumer_tag"), false, false, true, _))
        .WillOnce(Return(&consumeOk));
        EXPECT_CALL(mock, amqp_get_rpc_reply(AmqpMock::defaultConnectionState))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    auto tag = channel.consume("my_queue", "my_consumer_tag", consume_flags(consume_flag::exclusive));
    EXPECT_EQ(std::string("new_tag"), tag);
}

TEST(AmqpTest, Channel_close_failed)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_channel_close(AmqpMock::defaultConnectionState, 3, 500))
        .WillOnce(Return(amqp_rpc_reply_t {
            static_cast<amqp_response_type_enum>(AMQP_RESPONSE_LIBRARY_EXCEPTION),
            { 0, nullptr },
            666 }));
    EXPECT_CALL(mock, amqp_error_string2(666))
        .WillOnce(Return("error from hell >:D"));

    EXPECT_THROW(channel.close(500), cppamqp::exception);
}

TEST(AmqpTest, Channel_close_success)
{
    connection con;
    con.tcp_connect("localhost", 1234);
    channel channel = con.open_channel(3);

    StrictAmqpMock mock;
    InSequence seq;
    EXPECT_CALL(mock, amqp_channel_close(AmqpMock::defaultConnectionState, 3, 200))
        .WillOnce(Return(AmqpMock::defaultRpcReply));

    EXPECT_NO_THROW(channel.close(200));
}