Jeff Epler
d79000df70
I noticed that operations such as unlink could be performed on a nominally read-only VfsPosix. Signed-off-by: Jeff Epler <jepler@gmail.com>
99 lines
1.8 KiB
Python
99 lines
1.8 KiB
Python
# Test for VfsPosix
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try:
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import gc, os, vfs, errno
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vfs.VfsPosix
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except (ImportError, AttributeError):
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print("SKIP")
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raise SystemExit
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# We need a directory for testing that doesn't already exist.
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# Skip the test if it does exist.
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temp_dir = "vfs_posix_readonly_test_dir"
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try:
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os.stat(temp_dir)
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raise SystemExit("Target directory {} exists".format(temp_dir))
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except OSError:
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pass
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# mkdir (skip test if whole filesystem is readonly)
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try:
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os.mkdir(temp_dir)
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except OSError as e:
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if e.errno == errno.EROFS:
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print("SKIP")
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raise SystemExit
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fs_factory = lambda: vfs.VfsPosix(temp_dir)
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# mount
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fs = fs_factory()
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vfs.mount(fs, "/vfs")
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with open("/vfs/file", "w") as f:
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f.write("content")
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# test reading works
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with open("/vfs/file") as f:
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print("file:", f.read())
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os.mkdir("/vfs/emptydir")
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# umount
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vfs.umount("/vfs")
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# mount read-only
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fs = fs_factory()
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vfs.mount(fs, "/vfs", readonly=True)
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# test reading works
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with open("/vfs/file") as f:
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print("file 2:", f.read())
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# test writing fails
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try:
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with open("/vfs/test_write", "w"):
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pass
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print("opened")
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except OSError as er:
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print(repr(er))
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# test removing fails
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try:
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os.unlink("/vfs/file")
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print("unlinked")
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except OSError as er:
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print(repr(er))
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# test renaming fails
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try:
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os.rename("/vfs/file2", "/vfs/renamed")
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print("renamed")
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except OSError as er:
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print(repr(er))
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# test removing directory fails
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try:
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os.rmdir("/vfs/emptydir")
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print("rmdir'd")
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except OSError as er:
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print(repr(er))
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# test creating directory fails
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try:
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os.mkdir("/vfs/emptydir2")
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print("mkdir'd")
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except OSError as er:
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print(repr(er))
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# umount
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vfs.umount("/vfs")
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fs = fs_factory()
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vfs.mount(fs, "/vfs")
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os.rmdir("/vfs/emptydir")
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os.unlink("/vfs/file")
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os.rmdir(temp_dir)
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