122 lines
2.6 KiB
Python
122 lines
2.6 KiB
Python
# Test for VfsLittle using a RAM device, testing error handling
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try:
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import os
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os.VfsLfs1
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os.VfsLfs2
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except (ImportError, AttributeError):
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print("SKIP")
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raise SystemExit
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class RAMBlockDevice:
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ERASE_BLOCK_SIZE = 1024
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def __init__(self, blocks):
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self.data = bytearray(blocks * self.ERASE_BLOCK_SIZE)
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def readblocks(self, block, buf, off):
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addr = block * self.ERASE_BLOCK_SIZE + off
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for i in range(len(buf)):
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buf[i] = self.data[addr + i]
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def writeblocks(self, block, buf, off):
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addr = block * self.ERASE_BLOCK_SIZE + off
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for i in range(len(buf)):
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self.data[addr + i] = buf[i]
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def ioctl(self, op, arg):
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if op == 4: # block count
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return len(self.data) // self.ERASE_BLOCK_SIZE
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if op == 5: # block size
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return self.ERASE_BLOCK_SIZE
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if op == 6: # erase block
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return 0
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def test(bdev, vfs_class):
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print("test", vfs_class)
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# mkfs with too-small block device
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try:
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vfs_class.mkfs(RAMBlockDevice(1))
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except OSError:
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print("mkfs OSError")
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# mount with invalid filesystem
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try:
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vfs_class(bdev)
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except OSError:
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print("mount OSError")
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# set up for following tests
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vfs_class.mkfs(bdev)
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vfs = vfs_class(bdev)
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with vfs.open("testfile", "w") as f:
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f.write("test")
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vfs.mkdir("testdir")
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# ilistdir
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try:
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vfs.ilistdir("noexist")
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except OSError:
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print("ilistdir OSError")
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# remove
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try:
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vfs.remove("noexist")
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except OSError:
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print("remove OSError")
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# rmdir
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try:
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vfs.rmdir("noexist")
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except OSError:
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print("rmdir OSError")
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# rename
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try:
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vfs.rename("noexist", "somethingelse")
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except OSError:
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print("rename OSError")
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# mkdir
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try:
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vfs.mkdir("testdir")
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except OSError:
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print("mkdir OSError")
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# chdir to nonexistent
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try:
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vfs.chdir("noexist")
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except OSError:
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print("chdir OSError")
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print(vfs.getcwd()) # check still at root
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# chdir to file
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try:
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vfs.chdir("testfile")
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except OSError:
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print("chdir OSError")
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print(vfs.getcwd()) # check still at root
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# stat
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try:
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vfs.stat("noexist")
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except OSError:
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print("stat OSError")
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# error during seek
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with vfs.open("testfile", "r") as f:
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f.seek(1 << 30) # SEEK_SET
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try:
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f.seek(1 << 30, 1) # SEEK_CUR
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except OSError:
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print("seek OSError")
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bdev = RAMBlockDevice(30)
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test(bdev, os.VfsLfs1)
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test(bdev, os.VfsLfs2)
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