87 lines
1.9 KiB
Python
87 lines
1.9 KiB
Python
import sys
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import uos
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try:
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uos.VfsFat
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except AttributeError:
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print("SKIP")
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sys.exit()
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class RAMFS:
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SEC_SIZE = 512
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def __init__(self, blocks):
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self.data = bytearray(blocks * self.SEC_SIZE)
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def readblocks(self, n, buf):
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#print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
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for i in range(len(buf)):
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buf[i] = self.data[n * self.SEC_SIZE + i]
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def writeblocks(self, n, buf):
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#print("writeblocks(%s, %x)" % (n, id(buf)))
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for i in range(len(buf)):
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self.data[n * self.SEC_SIZE + i] = buf[i]
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def ioctl(self, op, arg):
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#print("ioctl(%d, %r)" % (op, arg))
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if op == 4: # BP_IOCTL_SEC_COUNT
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return len(self.data) // self.SEC_SIZE
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if op == 5: # BP_IOCTL_SEC_SIZE
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return self.SEC_SIZE
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try:
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bdev = RAMFS(48)
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except MemoryError:
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print("SKIP")
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sys.exit()
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uos.VfsFat.mkfs(bdev)
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assert b"FOO_FILETXT" not in bdev.data
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assert b"hello!" not in bdev.data
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vfs = uos.VfsFat(bdev, "/ramdisk")
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print("getcwd:", vfs.getcwd())
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f = vfs.open("foo_file.txt", "w")
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f.write("hello!")
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f.close()
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f2 = vfs.open("foo_file.txt")
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print(f2.read())
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f2.close()
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assert b"FOO_FILETXT" in bdev.data
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assert b"hello!" in bdev.data
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assert vfs.listdir() == ['foo_file.txt']
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vfs.remove('foo_file.txt')
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assert vfs.listdir() == []
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vfs.mkdir("foo_dir")
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assert vfs.listdir() == ['foo_dir']
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f = vfs.open("foo_dir/file-in-dir.txt", "w")
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f.write("data in file")
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f.close()
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assert vfs.listdir("foo_dir") == ['file-in-dir.txt']
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vfs.rename("foo_dir/file-in-dir.txt", "moved-to-root.txt")
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assert vfs.listdir() == ['foo_dir', 'moved-to-root.txt']
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vfs.chdir("foo_dir")
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print("getcwd:", vfs.getcwd())
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assert vfs.listdir() == []
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with vfs.open("sub_file.txt", "w") as f:
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f.write("test2")
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assert vfs.listdir() == ["sub_file.txt"]
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vfs.chdir("..")
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print("getcwd:", vfs.getcwd())
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