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How to use mnt_dir method in avocado
Best Python code snippet using avocado_python
test_examples.py
Source:test_examples.py 
1#!/usr/bin/env python32# -*- coding: utf-8 -*-3'''4test_examples.py - Unit tests for pyfuse3.5Copyright © 2015 Nikolaus Rath <Nikolaus.org>6This file is part of pyfuse3. This work may be distributed under7the terms of the GNU LGPL.8'''9if __name__ == '__main__':10 import pytest11 import sys12 sys.exit(pytest.main([__file__] + sys.argv[1:]))13import subprocess14import os15import sys16import pytest17import stat18import shutil19import filecmp20import errno21from tempfile import NamedTemporaryFile22from util import fuse_test_marker, wait_for_mount, umount, cleanup23from pyfuse3 import _NANOS_PER_SEC24basename = os.path.join(os.path.dirname(__file__), '..')25TEST_FILE = __file__26pytestmark = fuse_test_marker()27with open(TEST_FILE, 'rb') as fh:28 TEST_DATA = fh.read()29def name_generator(__ctr=[0]):30 __ctr[0] += 131 return 'testfile_%d' % __ctr[0]32@pytest.mark.parametrize('filename', ('hello.py', 'hello_asyncio.py'))33def test_hello(tmpdir, filename):34 mnt_dir = str(tmpdir)35 cmdline = [sys.executable,36 os.path.join(basename, 'examples', filename),37 mnt_dir ]38 mount_process = subprocess.Popen(cmdline, stdin=subprocess.DEVNULL,39 universal_newlines=True)40 try:41 wait_for_mount(mount_process, mnt_dir)42 assert os.listdir(mnt_dir) == [ 'message' ]43 filename = os.path.join(mnt_dir, 'message')44 with open(filename, 'r') as fh:45 assert fh.read() == 'hello world\n'46 with pytest.raises(IOError) as exc_info:47 open(filename, 'r+')48 assert exc_info.value.errno == errno.EACCES49 with pytest.raises(IOError) as exc_info:50 open(filename + 'does-not-exist', 'r+')51 assert exc_info.value.errno == errno.ENOENT52 except:53 cleanup(mount_process, mnt_dir)54 raise55 else:56 umount(mount_process, mnt_dir)57def test_tmpfs(tmpdir):58 mnt_dir = str(tmpdir)59 cmdline = [sys.executable,60 os.path.join(basename, 'examples', 'tmpfs.py'),61 mnt_dir ]62 mount_process = subprocess.Popen(cmdline, stdin=subprocess.DEVNULL,63 universal_newlines=True)64 try:65 wait_for_mount(mount_process, mnt_dir)66 tst_write(mnt_dir)67 tst_mkdir(mnt_dir)68 tst_symlink(mnt_dir)69 tst_mknod(mnt_dir)70 tst_chown(mnt_dir)71 tst_chmod(mnt_dir)72 tst_utimens(mnt_dir)73 tst_rounding(mnt_dir)74 tst_link(mnt_dir)75 tst_rename(mnt_dir)76 tst_readdir(mnt_dir)77 tst_statvfs(mnt_dir)78 tst_truncate_path(mnt_dir)79 tst_truncate_fd(mnt_dir)80 tst_unlink(mnt_dir)81 except:82 cleanup(mount_process, mnt_dir)83 raise84 else:85 umount(mount_process, mnt_dir)86def test_passthroughfs(tmpdir):87 mnt_dir = str(tmpdir.mkdir('mnt'))88 src_dir = str(tmpdir.mkdir('src'))89 cmdline = [sys.executable,90 os.path.join(basename, 'examples', 'passthroughfs.py'),91 src_dir, mnt_dir ]92 mount_process = subprocess.Popen(cmdline, stdin=subprocess.DEVNULL,93 universal_newlines=True)94 try:95 wait_for_mount(mount_process, mnt_dir)96 tst_write(mnt_dir)97 tst_mkdir(mnt_dir)98 tst_symlink(mnt_dir)99 tst_mknod(mnt_dir)100 if os.getuid() == 0:101 tst_chown(mnt_dir)102 tst_chmod(mnt_dir)103 # Underlying fs may not have full nanosecond resolution104 tst_utimens(mnt_dir, ns_tol=1000)105 tst_rounding(mnt_dir)106 tst_link(mnt_dir)107 tst_rename(mnt_dir)108 tst_readdir(mnt_dir)109 tst_statvfs(mnt_dir)110 tst_truncate_path(mnt_dir)111 tst_truncate_fd(mnt_dir)112 tst_unlink(mnt_dir)113 tst_passthrough(src_dir, mnt_dir)114 except:115 cleanup(mount_process, mnt_dir)116 raise117 else:118 umount(mount_process, mnt_dir)119def checked_unlink(filename, path, isdir=False):120 fullname = os.path.join(path, filename)121 if isdir:122 os.rmdir(fullname)123 else:124 os.unlink(fullname)125 with pytest.raises(OSError) as exc_info:126 os.stat(fullname)127 assert exc_info.value.errno == errno.ENOENT128 assert filename not in os.listdir(path)129def tst_mkdir(mnt_dir):130 dirname = name_generator()131 fullname = mnt_dir + "/" + dirname132 os.mkdir(fullname)133 fstat = os.stat(fullname)134 assert stat.S_ISDIR(fstat.st_mode)135 assert os.listdir(fullname) == []136 assert fstat.st_nlink in (1,2)137 assert dirname in os.listdir(mnt_dir)138 checked_unlink(dirname, mnt_dir, isdir=True)139def tst_symlink(mnt_dir):140 linkname = name_generator()141 fullname = mnt_dir + "/" + linkname142 os.symlink("/imaginary/dest", fullname)143 fstat = os.lstat(fullname)144 assert stat.S_ISLNK(fstat.st_mode)145 assert os.readlink(fullname) == "/imaginary/dest"146 assert fstat.st_nlink == 1147 assert linkname in os.listdir(mnt_dir)148 checked_unlink(linkname, mnt_dir)149def tst_mknod(mnt_dir):150 filename = os.path.join(mnt_dir, name_generator())151 shutil.copyfile(TEST_FILE, filename)152 fstat = os.lstat(filename)153 assert stat.S_ISREG(fstat.st_mode)154 assert fstat.st_nlink == 1155 assert os.path.basename(filename) in os.listdir(mnt_dir)156 assert filecmp.cmp(TEST_FILE, filename, False)157 checked_unlink(filename, mnt_dir)158def tst_chown(mnt_dir):159 filename = os.path.join(mnt_dir, name_generator())160 os.mkdir(filename)161 fstat = os.lstat(filename)162 uid = fstat.st_uid163 gid = fstat.st_gid164 uid_new = uid + 1165 os.chown(filename, uid_new, -1)166 fstat = os.lstat(filename)167 assert fstat.st_uid == uid_new168 assert fstat.st_gid == gid169 gid_new = gid + 1170 os.chown(filename, -1, gid_new)171 fstat = os.lstat(filename)172 assert fstat.st_uid == uid_new173 assert fstat.st_gid == gid_new174 checked_unlink(filename, mnt_dir, isdir=True)175def tst_chmod(mnt_dir):176 filename = os.path.join(mnt_dir, name_generator())177 os.mkdir(filename)178 fstat = os.lstat(filename)179 mode = stat.S_IMODE(fstat.st_mode)180 mode_new = 0o640181 assert mode != mode_new182 os.chmod(filename, mode_new)183 fstat = os.lstat(filename)184 assert stat.S_IMODE(fstat.st_mode) == mode_new185 checked_unlink(filename, mnt_dir, isdir=True)186def tst_write(mnt_dir):187 name = os.path.join(mnt_dir, name_generator())188 shutil.copyfile(TEST_FILE, name)189 assert filecmp.cmp(name, TEST_FILE, False)190 checked_unlink(name, mnt_dir)191def tst_unlink(mnt_dir):192 name = os.path.join(mnt_dir, name_generator())193 data1 = b'foo'194 data2 = b'bar'195 with open(os.path.join(mnt_dir, name), 'wb+', buffering=0) as fh:196 fh.write(data1)197 checked_unlink(name, mnt_dir)198 fh.write(data2)199 fh.seek(0)200 assert fh.read() == data1+data2201def tst_statvfs(mnt_dir):202 os.statvfs(mnt_dir)203def tst_link(mnt_dir):204 name1 = os.path.join(mnt_dir, name_generator())205 name2 = os.path.join(mnt_dir, name_generator())206 shutil.copyfile(TEST_FILE, name1)207 assert filecmp.cmp(name1, TEST_FILE, False)208 os.link(name1, name2)209 fstat1 = os.lstat(name1)210 fstat2 = os.lstat(name2)211 assert fstat1 == fstat2212 assert fstat1.st_nlink == 2213 assert os.path.basename(name2) in os.listdir(mnt_dir)214 assert filecmp.cmp(name1, name2, False)215 os.unlink(name2)216 fstat1 = os.lstat(name1)217 assert fstat1.st_nlink == 1218 os.unlink(name1)219def tst_rename(mnt_dir):220 name1 = os.path.join(mnt_dir, name_generator())221 name2 = os.path.join(mnt_dir, name_generator())222 shutil.copyfile(TEST_FILE, name1)223 assert os.path.basename(name1) in os.listdir(mnt_dir)224 assert os.path.basename(name2) not in os.listdir(mnt_dir)225 assert filecmp.cmp(name1, TEST_FILE, False)226 fstat1 = os.lstat(name1)227 os.rename(name1, name2)228 fstat2 = os.lstat(name2)229 assert fstat1 == fstat2230 assert filecmp.cmp(name2, TEST_FILE, False)231 assert os.path.basename(name1) not in os.listdir(mnt_dir)232 assert os.path.basename(name2) in os.listdir(mnt_dir)233 os.unlink(name2)234def tst_readdir(mnt_dir):235 dir_ = os.path.join(mnt_dir, name_generator())236 file_ = dir_ + "/" + name_generator()237 subdir = dir_ + "/" + name_generator()238 subfile = subdir + "/" + name_generator()239 os.mkdir(dir_)240 shutil.copyfile(TEST_FILE, file_)241 os.mkdir(subdir)242 shutil.copyfile(TEST_FILE, subfile)243 listdir_is = os.listdir(dir_)244 listdir_is.sort()245 listdir_should = [ os.path.basename(file_), os.path.basename(subdir) ]246 listdir_should.sort()247 assert listdir_is == listdir_should248 os.unlink(file_)249 os.unlink(subfile)250 os.rmdir(subdir)251 os.rmdir(dir_)252def tst_truncate_path(mnt_dir):253 assert len(TEST_DATA) > 1024254 filename = os.path.join(mnt_dir, name_generator())255 with open(filename, 'wb') as fh:256 fh.write(TEST_DATA)257 fstat = os.stat(filename)258 size = fstat.st_size259 assert size == len(TEST_DATA)260 # Add zeros at the end261 os.truncate(filename, size + 1024)262 assert os.stat(filename).st_size == size + 1024263 with open(filename, 'rb') as fh:264 assert fh.read(size) == TEST_DATA265 assert fh.read(1025) == b'\0' * 1024266 # Truncate data267 os.truncate(filename, size - 1024)268 assert os.stat(filename).st_size == size - 1024269 with open(filename, 'rb') as fh:270 assert fh.read(size) == TEST_DATA[:size-1024]271 os.unlink(filename)272def tst_truncate_fd(mnt_dir):273 assert len(TEST_DATA) > 1024274 with NamedTemporaryFile('w+b', 0, dir=mnt_dir) as fh:275 fd = fh.fileno()276 fh.write(TEST_DATA)277 fstat = os.fstat(fd)278 size = fstat.st_size279 assert size == len(TEST_DATA)280 # Add zeros at the end281 os.ftruncate(fd, size + 1024)282 assert os.fstat(fd).st_size == size + 1024283 fh.seek(0)284 assert fh.read(size) == TEST_DATA285 assert fh.read(1025) == b'\0' * 1024286 # Truncate data287 os.ftruncate(fd, size - 1024)288 assert os.fstat(fd).st_size == size - 1024289 fh.seek(0)290 assert fh.read(size) == TEST_DATA[:size-1024]291def tst_utimens(mnt_dir, ns_tol=0):292 filename = os.path.join(mnt_dir, name_generator())293 os.mkdir(filename)294 fstat = os.lstat(filename)295 atime = fstat.st_atime + 42.28296 mtime = fstat.st_mtime - 42.23297 atime_ns = fstat.st_atime_ns + int(42.28*1e9)298 mtime_ns = fstat.st_mtime_ns - int(42.23*1e9)299 os.utime(filename, None, ns=(atime_ns, mtime_ns))300 fstat = os.lstat(filename)301 assert abs(fstat.st_atime - atime) < 1e-3302 assert abs(fstat.st_mtime - mtime) < 1e-3303 assert abs(fstat.st_atime_ns - atime_ns) <= ns_tol304 assert abs(fstat.st_mtime_ns - mtime_ns) <= ns_tol305 checked_unlink(filename, mnt_dir, isdir=True)306def tst_rounding(mnt_dir, ns_tol=0):307 filename = os.path.join(mnt_dir, name_generator())308 os.mkdir(filename)309 fstat = os.lstat(filename)310 # Approximately 100 years311 secs = 100 * 365 * 24 * 3600 + 999312 # Max nanos313 nanos = _NANOS_PER_SEC - 1314 # seconds+ns and ns_tol as a float in seconds 315 secs_f = secs + nanos / _NANOS_PER_SEC316 secs_tol = ns_tol / _NANOS_PER_SEC317 318 atime_ns = secs * _NANOS_PER_SEC + nanos319 mtime_ns = atime_ns320 os.utime(filename, None, ns=(atime_ns, mtime_ns))321 fstat = os.lstat(filename)322 assert abs(fstat.st_atime - secs_f) <= secs_tol323 assert abs(fstat.st_mtime - secs_f) <= secs_tol324 assert abs(fstat.st_atime_ns - atime_ns) <= ns_tol325 assert abs(fstat.st_mtime_ns - mtime_ns) <= ns_tol326 checked_unlink(filename, mnt_dir, isdir=True)327def tst_passthrough(src_dir, mnt_dir):328 # Test propagation from source to mirror329 name = name_generator()330 src_name = os.path.join(src_dir, name)331 mnt_name = os.path.join(mnt_dir, name)332 assert name not in os.listdir(src_dir)333 assert name not in os.listdir(mnt_dir)334 with open(src_name, 'w') as fh:335 fh.write('Hello, world')336 assert name in os.listdir(src_dir)337 assert name in os.listdir(mnt_dir)338 assert_same_stats(src_name, mnt_name)339 # Test propagation from mirror to source340 name = name_generator()341 src_name = os.path.join(src_dir, name)342 mnt_name = os.path.join(mnt_dir, name)343 assert name not in os.listdir(src_dir)344 assert name not in os.listdir(mnt_dir)345 with open(mnt_name, 'w') as fh:346 fh.write('Hello, world')347 assert name in os.listdir(src_dir)348 assert name in os.listdir(mnt_dir)349 assert_same_stats(src_name, mnt_name)350 # Test propagation inside subdirectory351 name = name_generator()352 src_dir = os.path.join(src_dir, 'subdir')353 mnt_dir = os.path.join(mnt_dir, 'subdir')354 os.mkdir(src_dir)355 src_name = os.path.join(src_dir, name)356 mnt_name = os.path.join(mnt_dir, name)357 assert name not in os.listdir(src_dir)358 assert name not in os.listdir(mnt_dir)359 with open(mnt_name, 'w') as fh:360 fh.write('Hello, world')361 assert name in os.listdir(src_dir)362 assert name in os.listdir(mnt_dir)363 assert_same_stats(src_name, mnt_name)364def assert_same_stats(name1, name2):365 stat1 = os.stat(name1)366 stat2 = os.stat(name2)367 for name in ('st_atime_ns', 'st_mtime_ns', 'st_ctime_ns',368 'st_mode', 'st_ino', 'st_nlink', 'st_uid',369 'st_gid', 'st_size'):...
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