I failed to build latest vdsm code on RHEL6 host because of test failure as below:

make[2]: Entering directory `/home/mark/Work/vdsm/vdsm-src/tests'
../tests/run_tests.sh main.py miscTests.py resourceManagerTests.py processPoolTests.py fileUtilTests.py guestIFTests.py
Failure
    runTest                                                     ERROR
    runTest                                                     ERROR
    runTest                                                     ERROR
    runTest                                                     ERROR
    runTest                                                     ERROR
TestGuestIF
    testfilterXmlChars                                          OK


When I manually run one of the test cases, I got the following exception:

$ ./run_tests.sh fileUtilTests.py
Failure
    runTest                                                     ERROR

======================================================================
ERROR: Failure: ImportError (No module named fileUtils)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/nose/loader.py", line 364, in loadTestsFromName
    addr.filename, addr.module)
  File "/usr/lib/python2.6/site-packages/nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/usr/lib/python2.6/site-packages/nose/importer.py", line 87, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/home/mark/Work/vdsm/vdsm-src/tests/fileUtilTests.py", line 23, in <module>
    import storage.fileUtils as fileUtils
ImportError: No module named fileUtils             ---------------------->  I am not sure why the name is fileUtils, not storage.fileUtils

----------------------------------------------------------------------
Ran 1 test in 0.001s

FAILED (errors=1)



I also tried to manually import fileUtilTests.py.  Although it failed too, it could locate the module storage.fileUtils and started to load it.  I guess the 'constants' module issue could be resolved by the function hackVdsmModule in testrunner.py.  
In [1]: import sys

In [2]: sys.path.append('../vdsm')

In [3]: import fileUtilTests.py
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)

/home/mark/Work/vdsm/vdsm-src/tests/<ipython console> in <module>()

/home/mark/Work/vdsm/vdsm-src/tests/fileUtilTests.py in <module>()
     21 import os
     22
---> 23 import storage.fileUtils as fileUtils
     24 import testValidation
     25 from testrunner import VdsmTestCase as TestCaseBase

/home/mark/Work/vdsm/vdsm-src/vdsm/storage/fileUtils.py in <module>()
     34
     35 import shutil
---> 36 from vdsm import constants
     37 import logging
     38 import storage_exception as se

ImportError: cannot import name constants


I guess this problem may be related to nose. The software versions are:

python-nose-0.10.4-3.1.el6.noarch
python-2.6.6-20.el6.x86_64

Anyone met this issue before?  Am I missing something?  Thanks!