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authorAdrian Hunter <ext-adrian.hunter@nokia.com>2007-03-15 08:45:19 -0500
committerJosh Boyer <jwboyer@gmail.com>2007-03-15 08:45:19 -0500
commit726ac243f051f0daee6149db66ac21ba621fb454 (patch)
tree257483dc155e539e5d7f08fb8009c57181919962 /tests/fs-tests/simple/test_2.c
parent876476b7bbf158c64868d379460a7b6bce7e95e0 (diff)
Add fs-tests from Adrian Hunter
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
Diffstat (limited to 'tests/fs-tests/simple/test_2.c')
-rw-r--r--tests/fs-tests/simple/test_2.c201
1 files changed, 201 insertions, 0 deletions
diff --git a/tests/fs-tests/simple/test_2.c b/tests/fs-tests/simple/test_2.c
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+/*
+ * 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_2(void)
+{
+ pid_t pid;
+ int create, full;
+ unsigned i, number_of_files;
+ unsigned growth;
+ unsigned size;
+ uint64_t big_file_size;
+ int fd;
+ off_t offset;
+ char dir_name[256];
+
+ /* Create a directory to test in */
+ pid = getpid();
+ tests_cat_pid(dir_name, "test_2_test_dir_", pid);
+ if (chdir(dir_name) == -1)
+ CHECK(mkdir(dir_name, 0777) != -1);
+ CHECK(chdir(dir_name) != -1);
+ /* Create up to 1000 files appending 400 bytes at a time to each file */
+ /* until the file system is full.*/
+ create = 1;
+ full = 0;
+ number_of_files = 1000;
+ while (!full) {
+ for (i = 0; i < number_of_files; ++i) {
+ growth = tests_append_to_fragment_file(i, 400, create);
+ if (!growth) {
+ full = 1;
+ if (create)
+ number_of_files = i;
+ break;
+ }
+ }
+ create = 0;
+ }
+ /* Check the files */
+ CHECK(tests_count_files_in_dir(".") == number_of_files);
+ for (i = 0; i < number_of_files; ++i)
+ tests_check_fragment_file(i);
+ /* Delete half of them */
+ for (i = 1; i < number_of_files; i += 2)
+ tests_delete_fragment_file(i);
+ /* Check them again */
+ CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
+ /* Create a big file that fills two thirds of the free space */
+ big_file_size = tests_get_big_file_size(2,3);
+ /* Check the big file */
+ tests_create_file("big_file", big_file_size);
+ CHECK(tests_count_files_in_dir(".") == 1 + (number_of_files + 1) / 2);
+ tests_check_filled_file("big_file");
+ /* Open the big file */
+ fd = open("big_file",O_RDWR | tests_maybe_sync_flag());
+ CHECK(fd != -1);
+ /* Delete the big file while it is still open */
+ tests_delete_file("big_file");
+ /* Check the big file again */
+ CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
+ tests_check_filled_file_fd(fd);
+
+ /* Write parts of the files and check them */
+
+ offset = 100; /* Offset to write at, in the small files */
+ size = 200; /* Number of bytes to write at the offset */
+
+ for (i = 0; i < number_of_files; i += 2)
+ tests_overwite_fragment_file(i, offset, size);
+ /* Rewrite the big file entirely */
+ tests_write_filled_file(fd, 0, big_file_size);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ tests_check_filled_file_fd(fd);
+
+ offset = 300; /* Offset to write at, in the small files */
+ size = 400; /* Number of bytes to write at the offset */
+
+ for (i = 0; i < number_of_files; i += 2)
+ tests_overwite_fragment_file(i, offset, size);
+ /* Rewrite the big file entirely */
+ tests_write_filled_file(fd, 0, big_file_size);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ tests_check_filled_file_fd(fd);
+
+ offset = 110; /* Offset to write at, in the small files */
+ size = 10; /* Number of bytes to write at the offset */
+
+ for (i = 0; i < number_of_files; i += 2)
+ tests_overwite_fragment_file(i, offset, size);
+ /* Rewrite the big file entirely */
+ tests_write_filled_file(fd, 0, big_file_size);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ tests_check_filled_file_fd(fd);
+
+ offset = 10; /* Offset to write at, in the small files */
+ size = 1000; /* Number of bytes to write at the offset */
+
+ for (i = 0; i < number_of_files; i += 2)
+ tests_overwite_fragment_file(i, offset, size);
+ /* Rewrite the big file entirely */
+ tests_write_filled_file(fd, 0, big_file_size);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ tests_check_filled_file_fd(fd);
+
+ offset = 0; /* Offset to write at, in the small files */
+ size = 100000; /* Number of bytes to write at the offset */
+
+ for (i = 0; i < number_of_files; i += 2)
+ tests_overwite_fragment_file(i, offset, size);
+ /* Rewrite the big file entirely */
+ tests_write_filled_file(fd, 0, big_file_size);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ tests_check_filled_file_fd(fd);
+
+ /* Close the big file*/
+ CHECK(close(fd) != -1);
+ /* Check the small files */
+ CHECK(tests_count_files_in_dir(".") == (number_of_files + 1) / 2);
+ for (i = 0; i < number_of_files; i += 2)
+ tests_check_fragment_file(i);
+ /* Delete the small files */
+ for (i = 0; i < number_of_files; i += 2)
+ tests_delete_fragment_file(i);
+ CHECK(tests_count_files_in_dir(".") == 0);
+ CHECK(chdir("..") != -1);
+ CHECK(rmdir(dir_name) != -1);
+}
+
+/* Title of this test */
+
+const char *test_2_get_title(void)
+{
+ return "Repeated write many small files and one big deleted file";
+}
+
+/* Description of this test */
+
+const char *test_2_get_description(void)
+{
+ return
+ "Create a directory named test_2_test_dir_pid, where " \
+ "pid is the process id. Within that directory, " \
+ "create about 1000 files. Append 400 bytes to each until " \
+ "the file system is full. Then delete half of them. Then " \
+ "create a big file that uses about 2/3 of the remaining free " \
+ "space. Get a file descriptor for the big file, and delete " \
+ "the big file. Then repeatedly write to the small files " \
+ "and the big file. " \
+ "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_2_get_title(),
+ test_2_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_2();
+ return 0;
+}