testing bzr under Wine

[Martin Pool]

2009/8/15 John Arbash Meinel <john at arbash-meinel.com>:

>>>  3) Is a read lock exclusive with a write lock inside the same process?
>>
>> I'm not sure how to quickly test this.  I would guess yes.
>
> l1 = bzrlib.ReadLock('filename')
> l2 = bzrlib.WriteLock('filename')
>
> If it does its own locking it should fail. If it thunks to fcntl
> locking, then it won't.

It does in fact fail:

>>> l1 = lock.ReadLock('fo')
>>> l2 = lock.WriteLock('fo')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "bzrlib\lock.py", line 498, in __init__
    "rb+")
  File "bzrlib\lock.py", line 459, in _open
    raise errors.LockContention(filename, e)
bzrlib.errors.LockContention: Could not acquire lock "fo": [Error 32]
Sharing violation

So overall it looks like this will give us good but not perfect
coverage; when some of the 2a stuff is settled I might do a pass
through selftest in this interpreter.  There are quite a few failures.

-- 
Martin <http://launchpad.net/~mbp/>