[GHC] #12554: Testsuite exhibits large amount of framework failures

[GHC]

#12554: Testsuite exhibits large amount of framework failures
-------------------------------------+-------------------------------------
        Reporter:  Phyx-             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Test Suite        |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Phyx-):

 I have my doubts about the threadsafety of the testsuite. In particular,
 the location of the function that's failing is right after a `rmtree` call
 that's supposed to ensure the path doesn't exist. Yet it does.

 Also I see that only relative paths are used in all directory name. I can
 only assume that it's relative to the `cwd` as explicit shell commands are
 issued to change the shell's `cwd`. Why the python call for this is not
 used I don't understand.

 I must be missing something since this is reliably working on Linux..

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12554#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler