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# Test for VfsPosix
try:
import gc, os, vfs, errno
vfs.VfsPosix
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
# We need a directory for testing that doesn't already exist.
# Skip the test if it does exist.
temp_dir = "vfs_posix_readonly_test_dir"
try:
os.stat(temp_dir)
raise SystemExit("Target directory {} exists".format(temp_dir))
except OSError:
pass
# mkdir (skip test if whole filesystem is readonly)
try:
os.mkdir(temp_dir)
except OSError as e:
if e.errno == errno.EROFS:
print("SKIP")
raise SystemExit
fs_factory = lambda: vfs.VfsPosix(temp_dir)
# mount
fs = fs_factory()
vfs.mount(fs, "/vfs")
with open("/vfs/file", "w") as f:
f.write("content")
# test reading works
with open("/vfs/file") as f:
print("file:", f.read())
os.mkdir("/vfs/emptydir")
# umount
vfs.umount("/vfs")
# mount read-only
fs = fs_factory()
vfs.mount(fs, "/vfs", readonly=True)
# test reading works
with open("/vfs/file") as f:
print("file 2:", f.read())
# test writing fails
try:
with open("/vfs/test_write", "w"):
pass
print("opened")
except OSError as er:
print(repr(er))
# test removing fails
try:
os.unlink("/vfs/file")
print("unlinked")
except OSError as er:
print(repr(er))
# test renaming fails
try:
os.rename("/vfs/file2", "/vfs/renamed")
print("renamed")
except OSError as er:
print(repr(er))
# test removing directory fails
try:
os.rmdir("/vfs/emptydir")
print("rmdir'd")
except OSError as er:
print(repr(er))
# test creating directory fails
try:
os.mkdir("/vfs/emptydir2")
print("mkdir'd")
except OSError as er:
print(repr(er))
# umount
vfs.umount("/vfs")
fs = fs_factory()
vfs.mount(fs, "/vfs")
os.rmdir("/vfs/emptydir")
os.unlink("/vfs/file")
os.rmdir(temp_dir)
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