// UDP state machine test: init -> opening

#include "test_utils.h"

/******************************************************************************
 * case: UDP init -> opening (by C2S Packet)
 ******************************************************************************/

#if 1
TEST(UDP_INIT_TO_OPENING, BY_C2S)
{
    char buffer[1024] = {0};
    struct packet pkt;
    struct session *sess = NULL;
    struct session_manager *mgr = NULL;

    timestamp_update();

    mgr = session_manager_create(&config);
    EXPECT_TRUE(mgr != NULL);

    // C2S REQ Packet
    printf("=> packet parse: UDP C2S REQ packet\n");
    packet_parse(&pkt, (const char *)udp_pkt1_dns_req, sizeof(udp_pkt1_dns_req));
    printf("<= packet parse\n\n");
    sess = session_manager_update_session(mgr, &pkt);
    EXPECT_TRUE(sess);

    EXPECT_TRUE(session_get_id(sess) == 0);
    tuple6_tostring(session_get0_key(sess), buffer, sizeof(buffer));
    EXPECT_STREQ(buffer, "192.168.38.105:61099 -> 121.14.154.93:53, proto: 17, domain: 0");
    EXPECT_TRUE(session_get_key_dir(sess) == SESSION_DIR_C2S);
    EXPECT_TRUE(session_get_state(sess) == SESSION_STATE_OPENING);
    EXPECT_TRUE(session_get_type(sess) == SESSION_TYPE_UDP);
    EXPECT_TRUE(session_get_dup_traffic_flag(sess) == 0);
    EXPECT_TRUE(session_get_closing_reasion(sess) == 0);
    EXPECT_TRUE(session_get_c2s_bytes(sess) == 74);
    EXPECT_TRUE(session_get_s2c_bytes(sess) == 0);
    EXPECT_TRUE(session_get_c2s_packets(sess) == 1);
    EXPECT_TRUE(session_get_s2c_packets(sess) == 0);
    EXPECT_TRUE(session_get_create_time(sess) == timestamp_get_msec());
    EXPECT_TRUE(session_get_last_time(sess) == timestamp_get_msec());
    EXPECT_TRUE(session_get0_cur_pkt(sess) == &pkt);
    EXPECT_TRUE(session_get_cur_dir(sess) == SESSION_DIR_C2S);
    EXPECT_TRUE(session_get_udp_state(sess) == UDP_C2S_RECVED);
    EXPECT_TRUE(session_get0_c2s_1st_pkt(sess) != NULL);
    EXPECT_TRUE(session_get0_s2c_1st_pkt(sess) == NULL);
    EXPECT_TRUE(session_get0_1st_pkt(sess) == session_get0_c2s_1st_pkt(sess));

    __session_dispatch(sess);

    __session_manager_count(mgr, 0, 0, 0, 1, 0, 0);
    __session_manager_dispatch(mgr, CLOSING_BY_TIMEOUT);
    __session_manager_count(mgr, 0, 0, 0, 0, 0, 0);

    session_manager_destroy(mgr);
}
#endif

/******************************************************************************
 * case: UDP init -> opening (by S2C Packet)
 ******************************************************************************/

#if 1
TEST(UDP_INIT_TO_OPENING, BY_S2C)
{
    char buffer[1024] = {0};
    struct packet pkt;
    struct session *sess = NULL;
    struct session_manager *mgr = NULL;

    timestamp_update();

    mgr = session_manager_create(&config);
    EXPECT_TRUE(mgr != NULL);

    // S2C RESP Packet
    printf("=> packet parse: UDP S2C RESP packet\n");
    packet_parse(&pkt, (const char *)udp_pkt2_dns_resp, sizeof(udp_pkt2_dns_resp));
    printf("<= packet parse\n\n");
    sess = session_manager_update_session(mgr, &pkt);
    EXPECT_TRUE(sess);

    EXPECT_TRUE(session_get_id(sess) == 0);
    tuple6_tostring(session_get0_key(sess), buffer, sizeof(buffer));
    EXPECT_STREQ(buffer, "121.14.154.93:53 -> 192.168.38.105:61099, proto: 17, domain: 0");
    EXPECT_TRUE(session_get_key_dir(sess) == SESSION_DIR_S2C);
    EXPECT_TRUE(session_get_state(sess) == SESSION_STATE_OPENING);
    EXPECT_TRUE(session_get_type(sess) == SESSION_TYPE_UDP);
    EXPECT_TRUE(session_get_dup_traffic_flag(sess) == 0);
    EXPECT_TRUE(session_get_closing_reasion(sess) == 0);
    EXPECT_TRUE(session_get_c2s_bytes(sess) == 0);
    EXPECT_TRUE(session_get_s2c_bytes(sess) == 550);
    EXPECT_TRUE(session_get_c2s_packets(sess) == 0);
    EXPECT_TRUE(session_get_s2c_packets(sess) == 1);
    EXPECT_TRUE(session_get_create_time(sess) == timestamp_get_msec());
    EXPECT_TRUE(session_get_last_time(sess) == timestamp_get_msec());
    EXPECT_TRUE(session_get0_cur_pkt(sess) == &pkt);
    EXPECT_TRUE(session_get_cur_dir(sess) == SESSION_DIR_S2C);
    EXPECT_TRUE(session_get_udp_state(sess) == UDP_S2C_RECVED);
    EXPECT_TRUE(session_get0_c2s_1st_pkt(sess) == NULL);
    EXPECT_TRUE(session_get0_s2c_1st_pkt(sess) != NULL);
    EXPECT_TRUE(session_get0_1st_pkt(sess) == session_get0_s2c_1st_pkt(sess));

    __session_dispatch(sess);

    __session_manager_count(mgr, 0, 0, 0, 1, 0, 0);
    __session_manager_dispatch(mgr, CLOSING_BY_TIMEOUT);
    __session_manager_count(mgr, 0, 0, 0, 0, 0, 0);

    session_manager_destroy(mgr);
}
#endif

int main(int argc, char **argv)
{
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}