+++ /dev/null
-/*
- test_cases_set_port.c -- Execution of specific meshlink black box test cases
- Copyright (C) 2018 Guus Sliepen <guus@meshlink.io>
-
- 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; either version 2 of the License, or
- (at your option) any later version.
-
- 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifdef NDEBUG
-#undef NDEBUG
-#endif
-
-#include "execute_tests.h"
-#include "test_cases_destroy.h"
-#include "../common/containers.h"
-#include "../common/test_step.h"
-#include "../common/common_handlers.h"
-#include "../../utils.h"
-#include "test_cases_set_port.h"
-#include <assert.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <setjmp.h>
-#include <cmocka.h>
-#include <signal.h>
-#include <wait.h>
-#include <linux/limits.h>
-
-/* Modify this to change the logging level of Meshlink */
-#define TEST_MESHLINK_LOG_LEVEL MESHLINK_DEBUG
-
-#define NUT "nut"
-#define PEER "peer"
-#define TEST_MESHLINK_SET_PORT "test_set_port"
-#define create_path(confbase, node_name, test_case_no) assert(snprintf(confbase, sizeof(confbase), TEST_MESHLINK_SET_PORT "_%ld_%s_%02d", (long) getpid(), node_name, test_case_no) > 0)
-
-static void test_case_set_port_01(void **state);
-static bool test_set_port_01(void);
-static void test_case_set_port_02(void **state);
-static bool test_set_port_02(void);
-static void test_case_set_port_03(void **state);
-static bool test_set_port_03(void);
-static void test_case_set_port_04(void **state);
-static bool test_set_port_04(void);
-
-/* State structure for set port API Test Case #1 */
-static black_box_state_t test_case_set_port_01_state = {
- .test_case_name = "test_case_set_port_01",
-};
-/* State structure for set port API Test Case #2 */
-static black_box_state_t test_case_set_port_02_state = {
- .test_case_name = "test_case_set_port_02",
-};
-/* State structure for set port API Test Case #3 */
-static black_box_state_t test_case_set_port_03_state = {
- .test_case_name = "test_case_set_port_03",
-};
-/* State structure for set port API Test Case #4 */
-static black_box_state_t test_case_set_port_04_state = {
- .test_case_name = "test_case_set_port_04",
-};
-
-static bool try_bind(int portno) {
- int socket_fd = socket(AF_INET, SOCK_STREAM, 0);
- assert_int_not_equal(socket_fd, -1);
-
- struct sockaddr_in sin;
- socklen_t len = sizeof(sin);
- bzero(&sin, len);
-
- assert_int_not_equal(getsockname(socket_fd, (struct sockaddr *)&sin, &len), -1);
- sin.sin_addr.s_addr = INADDR_ANY;
- sin.sin_port = htons(portno);
-
- errno = 0;
- int bind_status = bind(socket_fd, (struct sockaddr *)&sin, len);
-
- // Exempt EADDRINUSE error only
-
- if(bind_status) {
- assert_int_equal(errno, EADDRINUSE);
- }
-
- assert_int_not_equal(close(socket_fd), -1);
-
- return !bind_status;
-}
-
-static void wait_for_socket_free(int portno) {
-
- // Wait upto 20 seconds and poll every second whether the port is freed or not
-
- for(int i = 0; i < 20; i++) {
- if(try_bind(portno)) {
- return;
- } else {
- sleep(1);
- }
- }
-
- fail();
-}
-
-static int get_free_port(void) {
-
- // Get a free port
-
- int socket_fd = socket(AF_INET, SOCK_STREAM, 0);
- assert_int_not_equal(socket_fd, -1);
-
- struct sockaddr_in sin;
- socklen_t len = sizeof(sin);
- bzero(&sin, len);
-
- assert_int_not_equal(getsockname(socket_fd, (struct sockaddr *)&sin, &len), -1);
- sin.sin_addr.s_addr = INADDR_ANY;
- sin.sin_port = 0;
-
- assert_int_not_equal(bind(socket_fd, (struct sockaddr *)&sin, len), -1);
-
- assert_int_not_equal(getsockname(socket_fd, (struct sockaddr *)&sin, &len), -1);
-
- assert_int_not_equal(close(socket_fd), -1);
-
- return (int) sin.sin_port;
-}
-
-
-/* Execute meshlink_set_port Test Case # 1 - valid case*/
-static void test_case_set_port_01(void **state) {
- execute_test(test_set_port_01, state);
-}
-/* Test Steps for meshlink_set_port Test Case # 1 - Valid case
-
- Test Steps:
- 1. Open NUT(Node Under Test)
- 2. Set Port for NUT
-
- Expected Result:
- Set the new port to the NUT.
-*/
-static bool test_set_port_01(void) {
- meshlink_set_log_cb(NULL, TEST_MESHLINK_LOG_LEVEL, meshlink_callback_logger);
-
- // Create meshlink instance
-
- mesh_handle = meshlink_open("setportconf", "nut", "test", 1);
- assert(mesh_handle);
- meshlink_set_log_cb(mesh_handle, TEST_MESHLINK_LOG_LEVEL, meshlink_callback_logger);
-
- // Get old port and set a new port number
-
- int port;
- port = meshlink_get_port(mesh_handle);
- assert(port > 0);
- bool ret = meshlink_set_port(mesh_handle, 8000);
- port = meshlink_get_port(mesh_handle);
-
- assert_int_equal(port, 8000);
- assert_int_equal(ret, true);
-
- // Clean up
-
- meshlink_close(mesh_handle);
- assert(meshlink_destroy("setportconf"));
- return true;
-}
-
-
-/* Execute meshlink_set_port Test Case # 2 - Invalid arguments */
-static void test_case_set_port_02(void **state) {
- execute_test(test_set_port_02, state);
-}
-
-/* Test Steps for meshlink_set_port Test Case # 2 - functionality test
-
- Test Steps:
- 1. Open and start NUT and then pass invalid arguments to the set port API
-
- Expected Result:
- Meshlink set port API should fail and error out when invalid arguments are passed
-*/
-static bool test_set_port_02(void) {
- char nut_confbase[PATH_MAX];
- create_path(nut_confbase, NUT, 2);
-
- // Create meshlink instance
-
- meshlink_set_log_cb(NULL, TEST_MESHLINK_LOG_LEVEL, log_cb);
- meshlink_handle_t *mesh = meshlink_open(nut_confbase, NUT, TEST_MESHLINK_SET_PORT, DEV_CLASS_STATIONARY);
- meshlink_set_log_cb(mesh, TEST_MESHLINK_LOG_LEVEL, log_cb);
-
- // meshlink_set_port called using NULL as mesh handle
-
- meshlink_errno = MESHLINK_OK;
- assert_false(meshlink_set_port(NULL, 8000));
- assert_int_equal(meshlink_errno, MESHLINK_EINVAL);
-
- // Setting port after starting NUT
- meshlink_errno = MESHLINK_OK;
- assert_false(meshlink_set_port(mesh, -1));
- assert_int_equal(meshlink_errno, MESHLINK_EINVAL);
-
- meshlink_errno = MESHLINK_OK;
- assert_false(meshlink_set_port(mesh, 70000));
- assert_int_equal(meshlink_errno, MESHLINK_EINVAL);
-
- assert_true(meshlink_start(mesh));
- meshlink_errno = MESHLINK_OK;
- assert_false(meshlink_set_port(mesh, 8000));
- assert_int_equal(meshlink_errno, MESHLINK_EINVAL);
-
- // Clean up
-
- meshlink_close(mesh);
- assert_true(meshlink_destroy(nut_confbase));
- return true;
-}
-
-/* Execute meshlink_set_port Test Case # 3 - Synchronization testing */
-static void test_case_set_port_03(void **state) {
- execute_test(test_set_port_03, state);
-}
-
-static bool test_set_port_03(void) {
- pid_t pid;
- int pid_status;
- char nut_confbase[PATH_MAX];
- create_path(nut_confbase, NUT, 3);
-
- int new_port = get_free_port();
-
- // Fork a new process in which NUT opens it's instance, set's the new port and raises SIGINT to terminate.
-
- pid = fork();
- assert_int_not_equal(pid, -1);
-
- if(!pid) {
- meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
- meshlink_handle_t *mesh = meshlink_open(nut_confbase, NUT, TEST_MESHLINK_SET_PORT, DEV_CLASS_STATIONARY);
- assert(mesh);
-
- assert(meshlink_set_port(mesh, new_port));
- raise(SIGINT);
- }
-
- // Wait for child exit and verify which signal terminated it
-
- assert_int_not_equal(waitpid(pid, &pid_status, 0), -1);
- assert_int_equal(WIFSIGNALED(pid_status), true);
- assert_int_equal(WTERMSIG(pid_status), SIGINT);
-
- // Wait for the NUT's listening socket to be freed. (i.e, preventing meshlink from binding to a new port
- // when NUT instance is reopened and the actual port is not freed due EADDRINUSE)
-
- wait_for_socket_free(new_port);
-
- // Reopen the NUT instance in the same test suite
-
- meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
- meshlink_handle_t *mesh = meshlink_open(nut_confbase, NUT, TEST_MESHLINK_SET_PORT, DEV_CLASS_STATIONARY);
- assert_non_null(mesh);
-
- assert_false(try_bind(new_port));
-
- // Validate the new port that's being set in the previous instance persists.
-
- int get_port = meshlink_get_port(mesh);
- assert_int_equal(get_port, new_port);
-
- // Close the mesh instance and verify that the listening port is closed or not
-
- meshlink_close(mesh);
-
- wait_for_socket_free(new_port);
-
- assert_true(meshlink_destroy(nut_confbase));
- return true;
-}
-
-
-int test_meshlink_set_port(void) {
- const struct CMUnitTest blackbox_set_port_tests[] = {
- cmocka_unit_test_prestate_setup_teardown(test_case_set_port_01, NULL, NULL,
- (void *)&test_case_set_port_01_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_set_port_02, NULL, NULL,
- (void *)&test_case_set_port_02_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_set_port_03, NULL, NULL,
- (void *)&test_case_set_port_03_state)
- };
- total_tests += sizeof(blackbox_set_port_tests) / sizeof(blackbox_set_port_tests[0]);
- return cmocka_run_group_tests(blackbox_set_port_tests, NULL, NULL);
-}
projects / meshlink-tiny / blobdiff