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from __future__ import with_statement
import struct
from nose.tools import assert_equal #@UnresolvedImport
from whoosh import formats
from whoosh.compat import next, xrange
from whoosh.filedb.filepostings import FilePostingReader, FilePostingWriter
from whoosh.support.testing import TempStorage
def test_huge_postfile():
with TempStorage("hugeindex") as st:
pf = st.create_file("test.pst")
gb5 = 5 * 1024 * 1024 * 1024
pf.seek(gb5)
pf.write("\x00\x00\x00\x00")
assert_equal(pf.tell(), gb5 + 4)
fpw = FilePostingWriter(pf)
format = formats.Frequency(None)
offset = fpw.start(format)
for i in xrange(10):
fpw.write(i, float(i), struct.pack("!I", i), 10)
posttotal = fpw.finish()
assert_equal(posttotal, 10)
fpw.close()
pf = st.open_file("test.pst")
pfr = FilePostingReader(pf, offset, format)
i = 0
while pfr.is_active():
assert_equal(pfr.id(), i)
assert_equal(pfr.weight(), float(i))
assert_equal(pfr.value(), struct.pack("!I", i))
pfr.next()
i += 1
pf.close()
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