chainqueue/tests/test_hexdir.py

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# standard imports
import unittest
import tempfile
import shutil
import logging
import os
# local imports
from chainqueue.fs.dir import HexDir
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
class HexDirTest(unittest.TestCase):
def setUp(self):
self.dir = tempfile.mkdtemp()
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self.hexdir = HexDir(os.path.join(self.dir, 'q'), 4, 3, 2)
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logg.debug('setup hexdir root {}'.format(self.dir))
def tearDown(self):
shutil.rmtree(self.dir)
logg.debug('cleaned hexdir root {}'.format(self.dir))
def test_path(self):
content = b'cdef'
prefix = b'ab'
label = b'\xde\xad\xbe\xef'
self.hexdir.add(label, content, prefix=prefix)
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file_path = os.path.join(self.dir, 'q', 'DE', 'AD', 'BE', label.hex().upper())
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f = open(file_path, 'rb')
r = f.read()
f.close()
self.assertEqual(content, r)
f = open(self.hexdir.master_file, 'rb')
r = f.read()
f.close()
self.assertEqual(prefix + label, r)
def test_size(self):
content = b'cdef'
prefix = b'ab'
label = b'\xde\xad\xbe\xef'
with self.assertRaises(ValueError):
self.hexdir.add(label, content, prefix=b'a')
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def test_index(self):
self.hexdir.add(b'\xde\xad\xbe\xef', b'foo', b'ab')
self.hexdir.add(b'\xbe\xef\xfe\xed', b'bar', b'cd')
c = self.hexdir.add(b'\x01\x02\x03\x04', b'baz', b'ef')
self.assertEqual(c, 2)
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def test_edit(self):
self.hexdir.add(b'\xde\xad\xbe\xef', b'foo', b'ab')
self.hexdir.add(b'\xbe\xef\xfe\xed', b'bar', b'cd')
self.hexdir.add(b'\x01\x02\x03\x04', b'baz', b'ef')
self.hexdir.set_prefix(1, b'ff')
f = open(self.hexdir.master_file, 'rb')
f.seek(6)
r = f.read(2)
f.close()
self.assertEqual(b'ff', r)
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def test_get(self):
self.hexdir.add(b'\xde\xad\xbe\xef', b'foo', b'ab')
self.hexdir.add(b'\xbe\xef\xfe\xed', b'bar', b'cd')
self.hexdir.add(b'\x01\x02\x03\x04', b'baz', b'ef')
(prefix, key) = self.hexdir.get(1)
self.assertEqual(b'\xbe\xef\xfe\xed', key)
self.assertEqual(b'cd', prefix)
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if __name__ == '__main__':
unittest.main()