test_file.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2016, Digium, Inc.
 *
 * Kevin Harwell <[email protected]>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*** MODULEINFO
 <depend>TEST_FRAMEWORK</depend>
 <support_level>core</support_level>
 ***/


#include "asterisk.h"
#include <sys/stat.h>
#include <stdio.h>

#include "asterisk/file.h"
#include "asterisk/paths.h"
#include "asterisk/test.h"
#include "asterisk/module.h"
#include "asterisk/strings.h"
#include "asterisk/vector.h"

#define FOUND -7

AST_VECTOR(_filenames, struct ast_str *);

static void rm_file(struct ast_str *filename)
{
 if (unlink(ast_str_buffer(filename))) {
 ast_log(LOG_ERROR, "Unable to remove file: %s\n", ast_str_buffer(filename));
 }

 ast_free(filename);
}

static int test_files_destroy(struct ast_test *test, char *dir_name,
 struct _filenames *filenames)
{
 int res;

 if (filenames) {
 AST_VECTOR_CALLBACK_VOID(filenames, rm_file);
 AST_VECTOR_FREE(filenames);
 }

 if ((res = rmdir(dir_name)) < 0) {
 ast_test_status_update(test, "Failed to remove directory: %s\n", dir_name);
 }

 return res;
}

static int test_files_create(struct ast_test *test, char *dir_name,
 struct _filenames *filenames, int num)
{
 int i;

 if (!(mkdtemp(dir_name))) {
 ast_test_status_update(test, "Failed to create directory: %s\n", dir_name);
 return -1;
 }


 AST_VECTOR_INIT(filenames, num);

 /*
 * Create "num" files under the specified directory
 */
 for (i = 0; i < num; ++i) {
 int fd;
 struct ast_str *filename = ast_str_create(32);

 if (!filename) {
 break;
 }

 ast_str_set(&filename, 0, "%s/XXXXXX", dir_name);

 fd = mkstemp(ast_str_buffer(filename));
 if (fd < 0) {
 ast_test_status_update(test, "Failed to create file: %s\n",
 ast_str_buffer(filename));
 ast_free(filename);
 break;
 }
 close(fd);

 AST_VECTOR_APPEND(filenames, filename);
 }

 if (i != num) {
 test_files_destroy(test, dir_name, filenames);
 return -1;
 }

 return 0;
}

static char *test_files_get_one(struct _filenames *filenames, int num)
{
 /* Every file is in a directory and contains a '/' so okay to do this */
 return strrchr(ast_str_buffer(
 AST_VECTOR_GET(filenames, ast_random() % (num - 1))), '/') + 1;
}

static int handle_find_file(const char *dir_name, const char *filename, void *obj)
{
 struct stat statbuf;
 char *full_path = ast_alloca(strlen(dir_name) + strlen(filename) + 2);

 sprintf(full_path, "%s/%s", dir_name, filename);

 errno = 0;
 if (stat(full_path, &statbuf)) {
 ast_log(LOG_ERROR, "Error reading path stats - %s: %s\n",
 full_path, strerror(errno));
 return 0;
 }
 /* obj contains the name of the file we are looking for */
 return strcmp(obj, filename) ? 0 : FOUND;
}

AST_TEST_DEFINE(read_dirs_test)
{
 char tmp_dir[] = "/tmp/tmpdir.XXXXXX";
 struct ast_str *tmp_sub_dir;
 struct _filenames filenames;
 enum ast_test_result_state res;
 const int num_files = 10 + (ast_random() % 10); /* 10-19 random files */

 switch (cmd) {
 case TEST_INIT:
 info->name = "read_dir_test";
 info->category = "/main/file/";
 info->summary = "Read a directory's content";
 info->description = "Iterate over directories looking for a file.";
 return AST_TEST_NOT_RUN;
 case TEST_EXECUTE:
 break;
 }

 /*
 * We want to test recursively searching into a subdirectory, so
 * create a top level tmp directory where we will start the search.
 */
 if (!(mkdtemp(tmp_dir))) {
 ast_test_status_update(test, "Failed to create directory: %s\n", tmp_dir);
 return AST_TEST_FAIL;
 }

 tmp_sub_dir = ast_str_alloca(32);
 ast_str_set(&tmp_sub_dir, 0, "%s/XXXXXX", tmp_dir);

 if (test_files_create(test, ast_str_buffer(tmp_sub_dir), &filenames, num_files)) {
 test_files_destroy(test, tmp_dir, NULL);
 return AST_TEST_FAIL;
 }

 res = ast_file_read_dirs(tmp_dir, handle_find_file, test_files_get_one(
 &filenames, num_files), 2) == FOUND ? AST_TEST_PASS : AST_TEST_FAIL;

 if (test_files_destroy(test, ast_str_buffer(tmp_sub_dir), &filenames) ||
 test_files_destroy(test, tmp_dir, NULL)) {
 res = AST_TEST_FAIL;
 }

 return res;
}

static int unload_module(void)
{
 AST_TEST_UNREGISTER(read_dirs_test);
 return 0;
}

static int load_module(void)
{
 AST_TEST_REGISTER(read_dirs_test);
 return AST_MODULE_LOAD_SUCCESS;
}

AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "File test module");