def test_random_filename():
fn = random_filename(10)
assert len(fn) == 10
fn = random_filename((10, 11))
assert 10 <= len(fn) <= 11
fn = random_filename((11, 11))
assert len(fn) == 11
def create_link(self, wekafs_alternate_path):
def _link(path, filename, linkname):
os.link(path + '/' + filename, path + '/' + linkname)
return linkname
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
new_link = self.validate_same_behavior_on_both_paths(
_link,
wekafs_alternate_path,
filename=filename,
linkname=random_filename())
if new_link:
# this means there was no exception
wekafs_path = self.wekafs_alternate_path if wekafs_alternate_path else self.wekafs_path
wekafs_inode = os.stat(wekafs_path + '/' + new_link).st_ino
self.dir_contents[new_link] = wekafs_inode
def access_file(self, wekafs_alternate_path):
def _access(path, filename, flag):
return os.access(path + '/' + filename, flag)
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
flag = choose([os.R_OK, os.W_OK, os.X_OK])
self.validate_same_behavior_on_both_paths(_access,
wekafs_alternate_path,
filename=filename,
flag=flag)
def remove_dir(self, wekafs_alternate_path):
def _rmdir(path, dirname):
os.rmdir(path + '/' + dirname)
return dirname
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
del_dir = self.validate_same_behavior_on_both_paths(
_rmdir, wekafs_alternate_path, dirname=filename)
if del_dir:
self.dir_contents.pop(del_dir)
def remove_file(self, wekafs_alternate_path):
def _rm(path, filename):
os.remove(path + '/' + filename)
return filename
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
del_file = self.validate_same_behavior_on_both_paths(
_rm, wekafs_alternate_path, filename=filename)
if del_file:
self.dir_contents.pop(del_file)
def chmod_file(self, wekafs_alternate_path):
def _chmod(path, filename, value):
os.chmod(path + '/' + filename, value)
return (filename, value)
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
value = randint(0, 0o777)
self.validate_same_behavior_on_both_paths(_chmod,
wekafs_alternate_path,
filename=filename,
value=value)
def create_file(self, wekafs_alternate_path):
def _mknod(path, filename):
os.mknod(path + '/' + filename)
return filename
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
new_file = self.validate_same_behavior_on_both_paths(
_mknod, wekafs_alternate_path, filename=filename)
if new_file:
# this means there was no exception
wekafs_path = self.wekafs_alternate_path if wekafs_alternate_path else self.wekafs_path
wekafs_inode = os.stat(wekafs_path + '/' + new_file).st_ino
self.dir_contents[new_file] = wekafs_inode
def open_read_write_close(self, wekafs_alternate_path):
def _open(path, filename, buf):
@contextmanager
def opened_file(filename):
fd = os.open(filename, flags=os.O_RDWR)
yield fd
os.close(fd)
with opened_file(filename) as fd:
os.read(fd, 100)
os.write(fd, buf)
return (filename, buf)
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
buf = random_buf(100)
self.validate_same_behavior_on_both_paths(_open,
wekafs_alternate_path,
filename=filename,
buf=buf)
def stat_file(self, wekafs_alternate_path):
def _stat(path, filename):
stats = os.stat(path + '/' + filename)
mode = stats.st_mode
# atime, mtime and ctime might differ by a few nanoseconds
# inode and device will be different between the 2 filesystems
# directory's nlink is different between wekafs and posix (see WEKAPP-76966)
# directory's size is unspecified
# this only leaves the 'mode' stat
return mode
filename = choose([k for (k, v) in self.dir_contents.items()] +
[random_filename()])
ret = self.validate_same_behavior_on_both_paths(
_stat, wekafs_alternate_path, filename=filename)
if ret:
# this means there was no exception
wekafs_path = self.wekafs_alternate_path if wekafs_alternate_path else self.wekafs_path
wekafs_inode = os.stat(wekafs_path + '/' + filename).st_ino
assert wekafs_inode == self.dir_contents[filename]
def __init__(self, wekafs, localfs='/mnt/localfs'):
random_suffix = random_filename(3)
dir_name = '/dir_leases_directory_' + random_suffix
self.localfs_path = localfs + dir_name
os.makedirs(self.localfs_path, exist_ok=True)
self.wekafs_path = wekafs + dir_name
os.makedirs(self.wekafs_path, exist_ok=True)
alternate_wekafs_mount_point = '/mnt/wekafs'
os.makedirs(alternate_wekafs_mount_point, exist_ok=True)
os.system('mount -t wekafs default %s -o dentry_max_age_positive=0' %
alternate_wekafs_mount_point)
self.wekafs_alternate_path = alternate_wekafs_mount_point + dir_name
os.makedirs(self.wekafs_alternate_path, exist_ok=True)
logger.info(
"Mount-paths are:\n%s\n%s\n%s\n" %
(self.localfs_path, self.wekafs_path, self.wekafs_alternate_path))
self.dir_contents = dict()