SizeFS
A mock Filesystem that exists in memory only. Returns files of a size as specified by the filename
For example, reading a file named 128MB+1 will return a file of 128 Megabytes plus 1 byte, reading a file named 128MB-1 will return a file of 128 Megabytes minus 1 byte
sfs = SizeFS()
print len(sfs.open('1B').read())
1
print len(sfs.open('2B').read())
2
print len(sfs.open('1KB').read())
1024
print len(sfs.open('128KB').read())
131072
The folder structure can also be used to determine the content of the files:
print sfs.open('zeros/5B').read(5)
00000
print sfs.open('ones/128KB').read(5)
11111
File content can also be random:
print len(sfs.open('random/128KB').read())
131072
print len(sfs.open('random/128KB-1').read())
131071
print len(sfs.open('random/128KB+1').read())
131073
File content can be generated by restricted regex pattern by adding a directory:
sfs.add_regex_dir("regex1","a(bcd)*e{4}[a-z,0,3]*")
print len(sfs.open('regex1/128KB').read())
131072
print len(sfs.open('regex1/128KB-1').read())
131071
print len(sfs.open('regex1/128KB+1').read())
131073
Mac Mounting - http://osxfuse.github.com/
Mounting
from fs.expose import fuse from sizefs import sizefs sfs = sizefs.SizeFS() mp = fuse.mount(sfs,"~/sizefsdir")