def test_SparseFile_seek_whence_2(size):
from oniontree.sparsefile import SparseFile
sf = SparseFile(size=size)
for i in range(0, -(size + 1), -1):
sf.seek(i, 2)
assert len(sf.read()) == abs(i)
def test_SparseFile_readsize(size, readsize):
from oniontree.sparsefile import SparseFile
sf = SparseFile(size=size)
data = sf.read(readsize)
assert len(data) == min(size, readsize)
def test_SparseFile_seek(size):
from oniontree.sparsefile import SparseFile
sf = SparseFile(size=size)
for i in range(0, size):
sf.seek(i)
assert len(sf.read()) == size - i
def test_SparseFile_content(size):
from oniontree.sparsefile import SparseFile
sf = SparseFile(size=size)
data = sf.read()
assert len(data) == size
assert all(x == 0 for x in bytearray(data))
