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Viewing changes to bzrlib/tests/per_workingtree/test_locking.py

  • Committer: Martin Pool
  • Date: 2009-09-14 01:48:28 UTC
  • mfrom: (4685 +trunk)
  • mto: This revision was merged to the branch mainline in revision 4688.
  • Revision ID: mbp@sourcefrog.net-20090914014828-ydr9rlkdfq2sv57z
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bzrlib/tests/per_workingtree/test_locking.py
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"""Tests for the (un)lock interfaces on all working tree implemenations."""
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import sys
 
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from bzrlib import (
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    branch,
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    errors,
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    lockdir,
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    )
 
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from bzrlib.tests import TestSkipped
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from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree
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        :param methodname: The lock method to use to establish locks.
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        """
 
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        if sys.platform == "win32":
 
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            raise TestSkipped("don't use oslocks on win32 in unix manner")
 
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        # This helper takes a write lock on the source tree, then opens a
 
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        # second copy and tries to grab a read lock. This works on Unix and is
 
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        # a reasonable way to detect when the file is actually written to, but
 
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        # it won't work (as a test) on Windows. It might be nice to instead
 
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        # stub out the functions used to write and that way do both less work
 
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        # and also be able to execute on Windows.
 
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        self.thisFailsStrictLockCheck()
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        # when unlocking the last lock count from tree_write_lock,
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        # the tree should do a flush().
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        # we test that by changing the inventory using set_root_id
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        tree.set_root_id('new-root')
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        # to detect that the inventory is written by unlock, we
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        # first check that it was not written yet.
 
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        # TODO: This requires taking a read lock while we are holding the above
 
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        #       write lock, which shouldn't actually be possible
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        reference_tree = tree.bzrdir.open_workingtree()
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        self.assertEqual(old_root, reference_tree.get_root_id())
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        # now unlock the second held lock, which should do nothing.