117 lines
2.6 KiB
Python
117 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 uos
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uos.VfsLfs1
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uos.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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try:
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f.seek(1 << 31)
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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, uos.VfsLfs1)
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test(bdev, uos.VfsLfs2)
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