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import unittest
import errno
import os
from commontest import abs_test_dir, old_test_dir, Myrm, \
rdiff_backup, compare_recursive
from rdiff_backup import rpath, Globals, regress, Time
if os.name == "nt":
NAME_MAX_LEN = 255
else:
NAME_MAX_LEN = os.pathconf(abs_test_dir, 'PC_NAME_MAX')
class LongNameTest(unittest.TestCase):
"""Test the longname module"""
root_rp = rpath.RPath(Globals.local_connection, abs_test_dir)
out_rp = root_rp.append_path('output')
def test_length_limit(self):
"""Confirm that length limit is NAME_MAX_LEN
Some of these tests depend on the length being at most
NAME_MAX_LEN, so check to make sure it's accurate.
"""
Myrm(self.out_rp.path)
self.out_rp.mkdir()
really_long = self.out_rp.append('a' * NAME_MAX_LEN)
really_long.touch()
with self.assertRaises(
OSError,
msg="File name could exceed max length '{max}'.".format(
max=NAME_MAX_LEN)) as cm:
self.out_rp.append("a" * (NAME_MAX_LEN + 1)).touch()
self.assertEqual(cm.exception.errno, errno.ENAMETOOLONG)
def make_input_dirs(self):
"""Create two input directories with long filename(s) in them"""
dir1 = self.root_rp.append('longname1')
dir2 = self.root_rp.append('longname2')
Myrm(dir1.path)
Myrm(dir2.path)
dir1.mkdir()
rp11 = dir1.append('A' * NAME_MAX_LEN)
rp11.write_string('foobar')
rp12 = dir1.append('B' * NAME_MAX_LEN)
rp12.mkdir()
rp121 = rp12.append('C' * NAME_MAX_LEN)
rp121.touch()
dir2.mkdir()
rp21 = dir2.append('A' * NAME_MAX_LEN)
rp21.write_string('Hello, world')
rp22 = dir2.append('D' * NAME_MAX_LEN)
rp22.mkdir()
rp221 = rp22.append('C' * NAME_MAX_LEN)
rp221.touch()
return dir1, dir2
def check_dir1(self, dirrp):
"""Make sure dirrp looks like dir1"""
rp1 = dirrp.append('A' * NAME_MAX_LEN)
self.assertEqual(rp1.get_string(), 'foobar')
rp2 = dirrp.append('B' * NAME_MAX_LEN)
self.assertTrue(rp2.isdir())
rp21 = rp2.append('C' * NAME_MAX_LEN)
self.assertTrue(rp21.isreg())
def check_dir2(self, dirrp):
"""Make sure dirrp looks like dir2"""
rp1 = dirrp.append('A' * NAME_MAX_LEN)
self.assertEqual(rp1.get_string(), 'Hello, world')
rp2 = dirrp.append('D' * NAME_MAX_LEN)
self.assertTrue(rp2.isdir())
rp21 = rp2.append('C' * NAME_MAX_LEN)
self.assertTrue(rp21.isreg())
def generic_test(self, inlocal, outlocal, extra_args, compare_back):
"""Used for some of the tests below"""
in1, in2 = self.make_input_dirs()
Myrm(self.out_rp.path)
restore_dir = self.root_rp.append('longname_out')
# Test backing up
rdiff_backup(inlocal,
outlocal,
in1.path,
self.out_rp.path,
10000,
extra_options=extra_args)
if compare_back:
self.check_dir1(self.out_rp)
rdiff_backup(inlocal,
outlocal,
in2.path,
self.out_rp.path,
20000,
extra_options=extra_args)
if compare_back:
self.check_dir2(self.out_rp)
# Now try restoring
Myrm(restore_dir.path)
rdiff_backup(inlocal,
outlocal,
self.out_rp.path,
restore_dir.path,
30000,
extra_options=b"-r now " + extra_args)
self.check_dir2(restore_dir)
Myrm(restore_dir.path)
rdiff_backup(1,
1,
self.out_rp.path,
restore_dir.path,
30000,
extra_options=b"-r 10000 " + extra_args)
self.check_dir1(restore_dir)
def test_basic_local(self):
"""Test backup session when increment would be too long"""
self.generic_test(1, 1, b"", 1)
def test_quoting_local(self):
"""Test backup session with quoting, so reg files also too long"""
self.generic_test(1, 1, b"--override-chars-to-quote A-Z", 0)
def generic_regress_test(self, extra_args):
"""Used for regress tests below"""
in1, in2 = self.make_input_dirs()
Myrm(self.out_rp.path)
restore_dir = self.root_rp.append('longname_out')
Myrm(restore_dir.path)
rdiff_backup(1,
1,
in1.path,
self.out_rp.path,
10000,
extra_options=extra_args)
rdiff_backup(1,
1,
in2.path,
self.out_rp.path,
20000,
extra_options=extra_args)
# Regress repository back to in1 condition
Globals.rbdir = self.out_rp.append_path('rdiff-backup-data')
self.add_current_mirror(10000)
self.out_rp.setdata()
regress.Regress(self.out_rp)
# Restore in1 and compare
rdiff_backup(1,
1,
self.out_rp.path,
restore_dir.path,
30000,
extra_options=b'-r now ' + extra_args)
self.check_dir1(restore_dir)
def add_current_mirror(self, time):
"""Add current_mirror marker at given time"""
cur_mirror_rp = Globals.rbdir.append("current_mirror.%s.data" %
(Time.timetostring(time), ))
cur_mirror_rp.touch()
def test_regress_basic(self):
"""Test regressing when increments would be too long"""
self.generic_regress_test(b'')
def test_long_socket_name(self):
"""Test when socket name is saved to a backup directory with a long name
It addresses an issue where socket wasn't created with mknod but
with socket.socket and bind, which has a limit at 107 characters."""
input_dir = os.path.join(old_test_dir, b"select", b"filetypes")
# create a target directory with a long name next to 107
output_dir = os.path.join(abs_test_dir, b"tenletters" * 10)
Myrm(output_dir)
restore_dir = os.path.join(abs_test_dir, b"restoresme" * 10)
Myrm(restore_dir)
# backup and restore the input directory with socket, then compare
rdiff_backup(True, True, input_dir, output_dir)
rdiff_backup(True,
True,
output_dir,
restore_dir,
extra_options=b'-r 0')
compare_recursive(rpath.RPath(Globals.local_connection, input_dir),
rpath.RPath(Globals.local_connection, restore_dir))
if __name__ == "__main__":
unittest.main()
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