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Diffstat (limited to 'tests/fs-tests/simple/test_1.c')
| -rw-r--r-- | tests/fs-tests/simple/test_1.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/tests/fs-tests/simple/test_1.c b/tests/fs-tests/simple/test_1.c new file mode 100644 index 0000000..69eafe4 --- /dev/null +++ b/tests/fs-tests/simple/test_1.c @@ -0,0 +1,150 @@ +/* + * Copyright (C) 2007 Nokia Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * 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 St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * Author: Adrian Hunter + */ + +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "tests.h" + +void test_1(void) +{ + int fd; + pid_t pid; + uint64_t i; + uint64_t block; + uint64_t actual_size; + char name[256]; + char old[16]; + char buf[16]; + off_t old_len; + char dir_name[256]; + + /* Create a directory to test in */ + pid = getpid(); + tests_cat_pid(dir_name, "test_1_test_dir_", pid); + if (chdir(dir_name) == -1) + CHECK(mkdir(dir_name, 0777) != -1); + CHECK(chdir(dir_name) != -1); + /* Create a file that fills half the free space on the file system */ + tests_create_file("big_file", tests_get_big_file_size(1,2)); + CHECK(tests_count_files_in_dir(".") == 1); + fd = open("big_file", O_RDWR | tests_maybe_sync_flag()); + CHECK(fd != -1); + CHECK(read(fd, old, 5) == 5); + CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1); + CHECK(write(fd,"start", 5) == 5); + CHECK(lseek(fd,0,SEEK_END) != (off_t) -1); + CHECK(write(fd, "end", 3) == 3); + tests_maybe_sync(fd); + /* Delete the file while it is still open */ + tests_delete_file("big_file"); + CHECK(tests_count_files_in_dir(".") == 0); + /* Create files to file up the file system */ + for (block = 1000000, i = 1; ; block /= 10) { + while (i != 0) { + sprintf(name, "fill_up_%llu", i); + actual_size = tests_create_file(name, block); + if (actual_size != 0) + ++i; + if (actual_size != block) + break; + } + if (block == 1) + break; + } + /* Check the big file */ + CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1); + CHECK(read(fd, buf, 5) == 5); + CHECK(strncmp(buf, "start", 5) == 0); + CHECK(lseek(fd, -3, SEEK_END) != (off_t) -1); + CHECK(read(fd, buf, 3) == 3); + CHECK(strncmp(buf, "end", 3) == 0); + /* Check the other files and delete them */ + i -= 1; + CHECK(tests_count_files_in_dir(".") == i); + for (; i > 0; --i) { + sprintf(name, "fill_up_%llu", i); + tests_check_filled_file(name); + tests_delete_file(name); + } + CHECK(tests_count_files_in_dir(".") == 0); + /* Check the big file again */ + CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1); + CHECK(read(fd, buf, 5) == 5); + CHECK(strncmp(buf, "start", 5) == 0); + CHECK(lseek(fd, -3, SEEK_END) != (off_t) -1); + CHECK(read(fd, buf, 3) == 3); + CHECK(strncmp(buf, "end", 3) == 0); + CHECK(lseek(fd, 0, SEEK_SET) != (off_t) -1); + CHECK(write(fd,old, 5) == 5); + old_len = lseek(fd, -3, SEEK_END); + CHECK(old_len != (off_t) -1); + CHECK(ftruncate(fd,old_len) != -1); + tests_check_filled_file_fd(fd); + /* Close the big file*/ + CHECK(close(fd) != -1); + CHECK(tests_count_files_in_dir(".") == 0); + CHECK(chdir("..") != -1); + CHECK(rmdir(dir_name) != -1); +} + +/* Title of this test */ + +const char *test_1_get_title(void) +{ + return "Fill file system while holding deleted big file descriptor"; +} + +/* Description of this test */ + +const char *test_1_get_description(void) +{ + return + "Create a directory named test_1_test_dir_pid, where " \ + "pid is the process id. Within that directory, " \ + "create a big file (approx. half the file system in size), " \ + "open it, and unlink it. " \ + "Create many smaller files until the file system is full. " \ + "Check the big file is ok. " \ + "Delete all the smaller files. " \ + "Check the big file again. " \ + "Finally delete the big file and directory."; +} + +int main(int argc, char *argv[]) +{ + int run_test; + + /* Handle common arguments */ + run_test = tests_get_args(argc, argv, test_1_get_title(), + test_1_get_description(), "s"); + if (!run_test) + return 1; + /* Change directory to the file system and check it is ok for testing */ + tests_check_test_file_system(); + /* Do the actual test */ + test_1(); + return 0; +} |