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77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
import hashlib
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import os
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import tempfile
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from attic.hashindex import NSIndex, ChunkIndex
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from attic.testsuite import AtticTestCase
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class HashIndexTestCase(AtticTestCase):
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def _generic_test(self, cls, make_value, sha):
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idx = cls()
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self.assert_equal(len(idx), 0)
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# Test set
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for x in range(100):
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idx[bytes('%-32d' % x, 'ascii')] = make_value(x)
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self.assert_equal(len(idx), 100)
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for x in range(100):
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self.assert_equal(idx[bytes('%-32d' % x, 'ascii')], make_value(x))
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# Test update
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for x in range(100):
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idx[bytes('%-32d' % x, 'ascii')] = make_value(x * 2)
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self.assert_equal(len(idx), 100)
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for x in range(100):
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self.assert_equal(idx[bytes('%-32d' % x, 'ascii')], make_value(x * 2))
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# Test delete
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for x in range(50):
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del idx[bytes('%-32d' % x, 'ascii')]
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self.assert_equal(len(idx), 50)
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idx_name = tempfile.NamedTemporaryFile()
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idx.write(idx_name.name)
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del idx
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# Verify file contents
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with open(idx_name.name, 'rb') as fd:
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self.assert_equal(hashlib.sha256(fd.read()).hexdigest(), sha)
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# Make sure we can open the file
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idx = cls.read(idx_name.name)
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self.assert_equal(len(idx), 50)
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for x in range(50, 100):
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self.assert_equal(idx[bytes('%-32d' % x, 'ascii')], make_value(x * 2))
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idx.clear()
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self.assert_equal(len(idx), 0)
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idx.write(idx_name.name)
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del idx
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self.assert_equal(len(cls.read(idx_name.name)), 0)
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def test_nsindex(self):
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self._generic_test(NSIndex, lambda x: (x, x), '369a18ae6a52524eb2884a3c0fdc2824947edd017a2688c5d4d7b3510c245ab9')
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def test_chunkindex(self):
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self._generic_test(ChunkIndex, lambda x: (x, x, x), 'ed22e8a883400453c0ee79a06c54df72c994a54eeefdc6c0989efdc5ee6d07b7')
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def test_resize(self):
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n = 2000 # Must be >= MIN_BUCKETS
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idx_name = tempfile.NamedTemporaryFile()
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idx = NSIndex()
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idx.write(idx_name.name)
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initial_size = os.path.getsize(idx_name.name)
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self.assert_equal(len(idx), 0)
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for x in range(n):
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idx[bytes('%-32d' % x, 'ascii')] = x, x
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idx.write(idx_name.name)
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self.assert_true(initial_size < os.path.getsize(idx_name.name))
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for x in range(n):
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del idx[bytes('%-32d' % x, 'ascii')]
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self.assert_equal(len(idx), 0)
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idx.write(idx_name.name)
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self.assert_equal(initial_size, os.path.getsize(idx_name.name))
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def test_iteritems(self):
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idx = NSIndex()
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for x in range(100):
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idx[bytes('%-0.32d' % x, 'ascii')] = x, x
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all = list(idx.iteritems())
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self.assert_equal(len(all), 100)
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second_half = list(idx.iteritems(marker=all[49][0]))
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self.assert_equal(len(second_half), 50)
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self.assert_equal(second_half, all[50:])
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