kopia lustrzana https://github.com/micropython/micropython
75 wiersze
1.6 KiB
Python
75 wiersze
1.6 KiB
Python
# Test for behaviour of combined standard and extended block device
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try:
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import vfs
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vfs.VfsFat
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vfs.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 = 512
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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=0):
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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=None):
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if off is None:
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# erase, then write
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off = 0
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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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for i in range(10):
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f.write("some data")
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f.close()
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# ilistdir
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print(list(vfs.ilistdir()))
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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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try:
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bdev = RAMBlockDevice(50)
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except MemoryError:
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print("SKIP")
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raise SystemExit
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test(bdev, vfs.VfsFat)
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test(bdev, vfs.VfsLfs2)
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