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/*
* This file is part of the PCEPlib, a PCEP protocol library.
*
* Copyright (C) 2020 Volta Networks https://voltanet.io/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Author : Brady Johnson <brady@voltanet.io>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <stdlib.h>
#include <CUnit/CUnit.h>
#include "pcep_socket_comm_internals.h"
#include "pcep_socket_comm_loop.h"
#include "pcep_socket_comm_loop_test.h"
#include "pcep_socket_comm.h"
#include "pcep_utils_memory.h"
void test_loop_conn_except_notifier(void *session_data, int socket_fd);
/*
* Functions to be tested, implemented in pcep_socket_comm_loop.c
*/
typedef struct ready_to_read_handler_info_ {
bool handler_called;
bool except_handler_called;
void *data;
int socket_fd;
int bytes_read;
} ready_to_read_handler_info;
static ready_to_read_handler_info read_handler_info;
static pcep_socket_comm_session *test_comm_session;
static pcep_socket_comm_handle *test_socket_comm_handle = NULL;
static int test_loop_message_ready_to_read_handler(void *session_data,
int socket_fd)
{
read_handler_info.handler_called = true;
read_handler_info.data = session_data;
read_handler_info.socket_fd = socket_fd;
return read_handler_info.bytes_read;
}
void test_loop_conn_except_notifier(void *session_data, int socket_fd)
{
(void)session_data;
(void)socket_fd;
read_handler_info.except_handler_called = true;
}
/*
* Test case setup and teardown called before AND after each test.
*/
void pcep_socket_comm_loop_test_setup()
{
test_socket_comm_handle =
pceplib_malloc(PCEPLIB_INFRA, sizeof(pcep_socket_comm_handle));
memset(test_socket_comm_handle, 0, sizeof(pcep_socket_comm_handle));
test_socket_comm_handle->active = false;
test_socket_comm_handle->read_list =
ordered_list_initialize(socket_fd_node_compare);
test_socket_comm_handle->write_list =
ordered_list_initialize(socket_fd_node_compare);
test_socket_comm_handle->session_list =
ordered_list_initialize(pointer_compare_function);
pthread_mutex_init(&test_socket_comm_handle->socket_comm_mutex, NULL);
test_socket_comm_handle->num_active_sessions = 0;
test_comm_session =
pceplib_malloc(PCEPLIB_INFRA, sizeof(pcep_socket_comm_session));
memset(test_comm_session, 0, sizeof(pcep_socket_comm_session));
test_comm_session->message_ready_to_read_handler =
test_loop_message_ready_to_read_handler;
ordered_list_add_node(test_socket_comm_handle->session_list,
test_comm_session);
read_handler_info.handler_called = false;
read_handler_info.except_handler_called = false;
read_handler_info.data = NULL;
read_handler_info.socket_fd = -1;
read_handler_info.bytes_read = 0;
}
void pcep_socket_comm_loop_test_teardown()
{
pthread_mutex_destroy(&test_socket_comm_handle->socket_comm_mutex);
ordered_list_destroy(test_socket_comm_handle->read_list);
ordered_list_destroy(test_socket_comm_handle->write_list);
ordered_list_destroy(test_socket_comm_handle->session_list);
pceplib_free(PCEPLIB_INFRA, test_socket_comm_handle);
test_socket_comm_handle = NULL;
if (test_comm_session != NULL) {
pceplib_free(PCEPLIB_INFRA, test_comm_session);
test_comm_session = NULL;
}
}
/*
* Test cases
*/
void test_socket_comm_loop_null_handle()
{
/* Verify that socket_comm_loop() correctly handles a NULL
* timers_context */
socket_comm_loop(NULL);
}
void test_socket_comm_loop_not_active()
{
/* Verify that event_loop() correctly handles an inactive flag */
pcep_socket_comm_handle handle;
handle.active = false;
socket_comm_loop(&handle);
}
void test_handle_reads_no_read()
{
CU_ASSERT_PTR_NULL(test_socket_comm_handle->read_list->head);
handle_reads(test_socket_comm_handle);
CU_ASSERT_FALSE(read_handler_info.handler_called);
CU_ASSERT_FALSE(read_handler_info.except_handler_called);
CU_ASSERT_PTR_NULL(test_socket_comm_handle->read_list->head);
}
void test_handle_reads_read_message()
{
/* Setup the comm session so that it can read.
* It should read 100 bytes, which simulates a successful read */
test_comm_session->socket_fd = 10;
read_handler_info.bytes_read = 100;
FD_SET(test_comm_session->socket_fd,
&test_socket_comm_handle->read_master_set);
ordered_list_add_node(test_socket_comm_handle->read_list,
test_comm_session);
handle_reads(test_socket_comm_handle);
CU_ASSERT_TRUE(read_handler_info.handler_called);
CU_ASSERT_FALSE(read_handler_info.except_handler_called);
CU_ASSERT_EQUAL(test_comm_session->received_bytes,
read_handler_info.bytes_read);
}
void test_handle_reads_read_message_close()
{
/* Setup the comm session so that it can read.
* It should read 0 bytes, which simulates that the socket closed */
test_comm_session->socket_fd = 11;
read_handler_info.bytes_read = 0;
FD_SET(test_comm_session->socket_fd,
&test_socket_comm_handle->read_master_set);
ordered_list_add_node(test_socket_comm_handle->read_list,
test_comm_session);
handle_reads(test_socket_comm_handle);
CU_ASSERT_TRUE(read_handler_info.handler_called);
CU_ASSERT_FALSE(read_handler_info.except_handler_called);
CU_ASSERT_EQUAL(test_comm_session->received_bytes,
read_handler_info.bytes_read);
CU_ASSERT_PTR_NULL(test_socket_comm_handle->read_list->head);
}
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