108 lines
2.4 KiB
Python
108 lines
2.4 KiB
Python
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# Test for VfsLittle using a RAM device
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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
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vfs_class.mkfs(bdev)
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# construction
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vfs = vfs_class(bdev)
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# statvfs
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print(vfs.statvfs('/'))
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# open, write close
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f = vfs.open('test', 'w')
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f.write('littlefs')
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f.close()
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# statvfs after creating a file
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print(vfs.statvfs('/'))
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# ilistdir
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print(list(vfs.ilistdir()))
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print(list(vfs.ilistdir('/')))
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print(list(vfs.ilistdir(b'/')))
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# mkdir, rmdir
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vfs.mkdir('testdir')
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print(list(vfs.ilistdir()))
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print(list(vfs.ilistdir('testdir')))
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vfs.rmdir('testdir')
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print(list(vfs.ilistdir()))
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vfs.mkdir('testdir')
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# stat a file
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print(vfs.stat('test'))
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# stat a dir (size seems to vary on LFS2 so don't print that)
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print(vfs.stat('testdir')[:6])
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# read
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with vfs.open('test', 'r') as f:
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print(f.read())
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# create large file
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with vfs.open('testbig', 'w') as f:
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data = 'large012' * 32 * 16
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print('data length:', len(data))
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for i in range(4):
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print('write', i)
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f.write(data)
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# stat after creating large file
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print(vfs.statvfs('/'))
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# rename
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vfs.rename('testbig', 'testbig2')
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print(list(vfs.ilistdir()))
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# remove
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vfs.remove('testbig2')
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print(list(vfs.ilistdir()))
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# getcwd, chdir
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print(vfs.getcwd())
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vfs.chdir('/testdir')
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print(vfs.getcwd())
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vfs.chdir('/')
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print(vfs.getcwd())
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vfs.rmdir('testdir')
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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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