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Viewing changes to bzrlib/tests/test__groupcompress.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-06-05 04:50:30 UTC
  • mfrom: (4398.6.3 1.16-no-first-delta-index)
  • Revision ID: pqm@pqm.ubuntu.com-20090605045030-yj7sm39ao623zoqo
(jam) Delay generating a delta index until we call make_delta()
        [saves a lot of memory during commit of large files.]

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bzrlib/tests/test__groupcompress.py
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        di = self._gc_module.DeltaIndex('test text\n')
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        self.assertEqual('DeltaIndex(1, 10)', repr(di))
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    def test_first_add_source_doesnt_index_until_make_delta(self):
 
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        di = self._gc_module.DeltaIndex()
 
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        self.assertFalse(di._has_index())
 
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        di.add_source(_text1, 0)
 
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        self.assertFalse(di._has_index())
 
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        # However, asking to make a delta will trigger the index to be
 
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        # generated, and will generate a proper delta
 
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        delta = di.make_delta(_text2)
 
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        self.assertTrue(di._has_index())
 
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        self.assertEqual('N\x90/\x1fdiffer from\nagainst other text\n', delta)
 
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    def test_second_add_source_triggers_make_index(self):
 
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        di = self._gc_module.DeltaIndex()
 
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        self.assertFalse(di._has_index())
 
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        di.add_source(_text1, 0)
 
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        self.assertFalse(di._has_index())
 
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        di.add_source(_text2, 0)
 
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        self.assertTrue(di._has_index())
 
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    def test_make_delta(self):
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        di = self._gc_module.DeltaIndex(_text1)
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        delta = di.make_delta(_text2)