[Python-Dev] Memory tests in Unicode

[Victor Stinner]

Hi,

Le Saturday 16 August 2008 15:43:28 Facundo Batista, vous avez écrit :
> The test_raiseMemError() in test_unicode.py is complicating me the
> regression tests: tries to use all the memory in my system, which
> starts to swap as crazy, and almost freezes everything.

On UNIX, it's possible to limit a process memory using RLIMIT_AS:

    from resource import getrlimit, setrlimit, RLIMIT_AS

    def limitMemory(soft):
        try:
            old_soft, hard = getrlimit(RLIMIT_AS)
            if old_soft != -1:
                soft = min(soft, old_soft)
        except ValueError:
            hard = -1
        setrlimit(RLIMIT_AS, (soft, hard))

Values are in bytes. So it's possible to get MemoryError without using the 
whole system memory.

Victor