detox fails because tests hardcode profile file names

[mgedmin]

mg@platonas: ~/src/projects/profilehooks [git:master $=] $ detox
py26 create: /home/mg/src/profilehooks/.tox/py26
GLOB sdist-make: /home/mg/src/profilehooks/setup.py
py27 create: /home/mg/src/profilehooks/.tox/py27
py32 create: /home/mg/src/profilehooks/.tox/py32
py33 create: /home/mg/src/profilehooks/.tox/py33
py34 create: /home/mg/src/profilehooks/.tox/py34
pypy create: /home/mg/src/profilehooks/.tox/pypy
py26 inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
py27 inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
py32 inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
py33 inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
py34 inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
py26 runtests: PYTHONHASHSEED='3440945571'       
py26 runtests: commands[0] | python test_profilehooks.py
py27 runtests: PYTHONHASHSEED='3440945571'       
py27 runtests: commands[0] | python test_profilehooks.py
ERROR: invocation failed (exit code 1), logfile: /home/mg/src/profilehooks/.tox/py27/log/py27-2.log
ERROR: actionid: py27
msg: runtests
cmdargs: [local('/home/mg/src/profilehooks/.tox/py27/bin/python'), 'test_profilehooks.py']
env: {'PATH': '/home/mg/src/profilehooks/.tox/py27/bin:/home/mg/src/profilehooks/.tox/py26/bin:/home/mg/bin:/home/mg/.venv/bin:/home/mg/.local/bin:/home/mg/bin:/home/mg/bin/local:/home/mg/.venv/bin:/home/mg/.local/bin:/home/mg/android/platform-tools:/home/mg/android/tools:/usr/lib/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games', 'VIRTUAL_ENV': '/home/mg/src/profilehooks/.tox/py27', 'PYTHONHASHSEED': '3440945571'}

..E..............
======================================================================
ERROR: test_coverage (__main__.TestCoverageWithHotShot)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test_profilehooks.py", line 102, in test_coverage
    run_exitfuncs()
  File "test_profilehooks.py", line 37, in run_exitfuncs
    fn(*args, **kw)
  File "/home/mg/src/profilehooks/profilehooks.py", line 520, in atexit
    reader = hotshot.log.LogReader(self.logfilename)
  File "/usr/lib/python2.7/hotshot/log.py", line 30, in __init__
    self._reader = _hotshot.logreader(logfn)
IOError: [Errno 2] No such file or directory: 'sample_fn.cprof'

----------------------------------------------------------------------
Ran 17 tests in 0.154s

FAILED (errors=1)

ERROR: InvocationError: /home/mg/src/profilehooks/.tox/py27/bin/python test_profilehooks.py (see /home/mg/src/profilehooks/.tox/py27/log/py27-2.log)
py34 runtests: PYTHONHASHSEED='3440945571'                  
py34 runtests: commands[0] | python test_profilehooks.py
py33 runtests: PYTHONHASHSEED='3440945571'
py33 runtests: commands[0] | python test_profilehooks.py
py32 runtests: PYTHONHASHSEED='3440945571'
py32 runtests: commands[0] | python test_profilehooks.py
pypy inst: /home/mg/src/profilehooks/.tox/dist/profilehooks-1.8.1.dev0.zip
pypy runtests: PYTHONHASHSEED='3440945571'
pypy runtests: commands[0] | python test_profilehooks.py
______________________________________________________________________ summary _______________________________________________________________________
  py26: commands succeeded
ERROR:   py27: commands failed
  py32: commands succeeded
  py33: commands succeeded
  py34: commands succeeded
  pypy: commands succeeded

[14s, exited with 1]