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o dZ e1 eA f GHqXn Xe< d j o e< iB e e1 n [< eC d d[ ZD d\ d] ZE d^ ZF d_ ZG d` ZH da ZI db ZJ dc eK f dd YZL e de ZM e iN df ZO e iN dg ZP d% eK f dh YZQ d& eK f di YZR d) eK f dj YZS dk ZT e iN dl ZU dm ZV dn ZW d~ ZX do eX ZY dT eY ZZ dp eY Z[ e i\ Z] dq Z^ dr eX ds Z_ dr eX dt Z` du Za d/ d dv YZb dw Zc dx Zd d dy Ze dz Zf d{ Zg d| Zh d} Zi d S( s7 Supporting definitions for the Python regression tests.s test.test_supports3 test_support must be imported from the test packageiNt Errort
TestFailedt TestSkippedt ResourceDeniedt
import_modulet verboset
use_resourcest
max_memuset record_original_stdoutt get_original_stdoutt unloadt unlinkt rmtreet forgett is_resource_enabledt requirest find_unused_portt bind_portt fcmpt have_unicodet is_jythont TESTFNt HOSTt FUZZt findfilet verifyt vereqt sortdictt check_syntax_errort open_urlresourcet check_warningst _check_py3k_warningst CleanImportt EnvironmentVarGuardt captured_outputt captured_stdoutt TransientResourcet transient_internett run_with_localet set_memlimitt
bigmemtestt bigaddrspacetestt BasicTestRunnert run_unittestt run_doctestt threading_setupt threading_cleanupt
reap_childrent strip_python_stderrc B s e Z d Z RS( s* Base class for regression test exceptions.( t __name__t
__module__t __doc__( ( ( s) /usr/lib64/python2.6/test/test_support.pyR s c B s e Z d Z RS( s Test failed.( R1 R2 R3 ( ( ( s) /usr/lib64/python2.6/test/test_support.pyR s c B s e Z d Z RS( s! Test skipped.
This can be raised to indicate that a test was deliberatly
skipped, but not because a feature wasn't available. For
example, if some resource can't be used, such as the network
appears to be unavailable, this should be raised instead of
TestFailed.
( R1 R2 R3 ( ( ( s) /usr/lib64/python2.6/test/test_support.pyR # s c B s e Z d Z RS( s Test skipped because it requested a disallowed resource.
This is raised when a test calls requires() for a resource that
has not be enabled. It is used to distinguish between expected
and unexpected skips.
( R1 R2 R3 ( ( ( s) /usr/lib64/python2.6/test/test_support.pyR - s c C s t i i i zb | o t i d d t n y t | d d } Wn# t j
o t d | n X| SWd QXd S( sO Import the module to be tested, raising TestSkipped if it is not
available.t ignores .+ (module|package)t leveli s No module named N( t warningst catch_warningst __exit__t __enter__t filterwarningst DeprecationWarningt
__import__t ImportErrorR ( t namet
deprecatedt module( ( s) /usr/lib64/python2.6/test/test_support.pyR 5 s i i c C s
| a d S( N( t _original_stdout( t stdout( ( s) /usr/lib64/python2.6/test/test_support.pyR M s c C s t p t i S( N( RA t sysRB ( ( ( s) /usr/lib64/python2.6/test/test_support.pyR Q s c C s( y t i | =Wn t j
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o, } | i t i t i f j o qL n Xd S( N( t shutilR RG t errnot ENOENTt ESRCH( t patht e( ( s) /usr/lib64/python2.6/test/test_support.pyR ` s
c C sj t | xY t i D]N } t t i i | | t i d t t i i | | t i d q Wd S( sm "Forget" a module was ever imported by removing it from sys.modules and
deleting any .pyc and .pyo files.t pyct pyoN( R
RC RM R RF t joint extsep( t modnamet dirname( ( s) /usr/lib64/python2.6/test/test_support.pyR
h s
$c C s t d j o
| t j S( sP Test whether a resource is enabled. Known resources are set by
regrtest.py.N( R t None( t resource( ( s) /usr/lib64/python2.6/test/test_support.pyR s s c C sc t i i i i d d j o d St | p+ | d j o d | } n t | n d S( s Raise ResourceDenied if the specified resource is not available.
If the caller's module is __main__ then automatically return True. The
possibility of False being returned occurs when regrtest.py is executing.R1 t __main__Ns$ Use of the `%s' resource not enabled( RC t _getframet f_backt f_globalst getR RU R ( RV t msg( ( s) /usr/lib64/python2.6/test/test_support.pyR x s "
t localhostc C s/ t i | | } t | } | i ~ | S( s
Returns an unused port that should be suitable for binding. This is
achieved by creating a temporary socket with the same family and type as
the 'sock' parameter (default is AF_INET, SOCK_STREAM), and binding it to
the specified host address (defaults to 0.0.0.0) with the port set to 0,
eliciting an unused ephemeral port from the OS. The temporary socket is
then closed and deleted, and the ephemeral port is returned.
Either this method or bind_port() should be used for any tests where a
server socket needs to be bound to a particular port for the duration of
the test. Which one to use depends on whether the calling code is creating
a python socket, or if an unused port needs to be provided in a constructor
or passed to an external program (i.e. the -accept argument to openssl's
s_server mode). Always prefer bind_port() over find_unused_port() where
possible. Hard coded ports should *NEVER* be used. As soon as a server
socket is bound to a hard coded port, the ability to run multiple instances
of the test simultaneously on the same host is compromised, which makes the
test a ticking time bomb in a buildbot environment. On Unix buildbots, this
may simply manifest as a failed test, which can be recovered from without
intervention in most cases, but on Windows, the entire python process can
completely and utterly wedge, requiring someone to log in to the buildbot
and manually kill the affected process.
(This is easy to reproduce on Windows, unfortunately, and can be traced to
the SO_REUSEADDR socket option having different semantics on Windows versus
Unix/Linux. On Unix, you can't have two AF_INET SOCK_STREAM sockets bind,
listen and then accept connections on identical host/ports. An EADDRINUSE
socket.error will be raised at some point (depending on the platform and
the order bind and listen were called on each socket).
However, on Windows, if SO_REUSEADDR is set on the sockets, no EADDRINUSE
will ever be raised when attempting to bind two identical host/ports. When
accept() is called on each socket, the second caller's process will steal
the port from the first caller, leaving them both in an awkwardly wedged
state where they'll no longer respond to any signals or graceful kills, and
must be forcibly killed via OpenProcess()/TerminateProcess().
The solution on Windows is to use the SO_EXCLUSIVEADDRUSE socket option
instead of SO_REUSEADDR, which effectively affords the same semantics as
SO_REUSEADDR on Unix. Given the propensity of Unix developers in the Open
Source world compared to Windows ones, this is a common mistake. A quick
look over OpenSSL's 0.9.8g source shows that they use SO_REUSEADDR when
openssl.exe is called with the 's_server' option, for example. See
http://bugs.python.org/issue2550 for more info. The following site also
has a very thorough description about the implications of both REUSEADDR
and EXCLUSIVEADDRUSE on Windows:
http://msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx)
XXX: although this approach is a vast improvement on previous attempts to
elicit unused ports, it rests heavily on the assumption that the ephemeral
port returned to us by the OS won't immediately be dished back out to some
other process when we close and delete our temporary socket but before our
calling code has a chance to bind the returned port. We can deal with this
issue if/when we come across it.( t socketR t close( t familyt socktypet tempsockt port( ( s) /usr/lib64/python2.6/test/test_support.pyR s
6
c C s | i t i j o | i t i j o t t d o3 | i t i t i d j o t d qi n t t d oC d t
i j o3 | i t i t i d j o t d q n t t d o | i
t i t i d q n | i | d f | i d } | S( s% Bind the socket to a free port and return the port number. Relies on
ephemeral ports in order to ensure we are using an unbound port. This is
important as many tests may be running simultaneously, especially in a
buildbot environment. This method raises an exception if the sock.family
is AF_INET and sock.type is SOCK_STREAM, *and* the socket has SO_REUSEADDR
or SO_REUSEPORT set on it. Tests should *never* set these socket options
for TCP/IP sockets. The only case for setting these options is testing
multicasting via multiple UDP sockets.
Additionally, if the SO_EXCLUSIVEADDRUSE socket option is available (i.e.
on Windows), it will be set on the socket. This will prevent anyone else
from bind()'ing to our host/port for the duration of the test.
t SO_REUSEADDRi sH tests should never set the SO_REUSEADDR socket option on TCP/IP sockets!t SO_REUSEPORTt WITHIN_PYTHON_RPM_BUILDsH tests should never set the SO_REUSEPORT socket option on TCP/IP sockets!t SO_EXCLUSIVEADDRUSEi ( R` R^ t AF_INETt typet SOCK_STREAMt hasattrt
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found the argument passed to the function is returned (this does not
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s test failedc C s | p t | n d S( s Verify that condition is true. If not, raise TestFailed.
The optional argument reason can be given to provide
a better error text.
N( R ( t conditiont reason( ( s) /usr/lib64/python2.6/test/test_support.pyR L s c C s+ | | j p t d | | f n d S( s$ Raise TestFailed if a == b is false.
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inputs.
Note that "not (a == b)" isn't necessarily the same as "a != b"; the
former is tested.
s %r == %rN( R ( t at b( ( s) /usr/lib64/python2.6/test/test_support.pyR V s
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Create an invalid file descriptor by opening and closing a file and return
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t WarningsRecorderc B s8 e Z d Z d Z d Z e d Z d Z RS( sy Convenience wrapper for the warnings list returned on
entry to the warnings.catch_warnings() context manager.
c C s | | _ d | _ d S( Ni ( t _warningst _last( t selft
warnings_list( ( s) /usr/lib64/python2.6/test/test_support.pyt __init__ s c C s` t | i | i j o t | i d | S| t i i j o d St d | | f d S( Nis %r has no attribute %r( R{ R R t getattrR6 t WarningMessaget _WARNING_DETAILSRU t AttributeError( R t attr( ( s) /usr/lib64/python2.6/test/test_support.pyt __getattr__ s
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s Catch the warnings, then check if all the expected
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i t __warningregistry__t recordR6 t alwaysNs unhandled warning %ri s) filter (%r, %s) did not catch any warning( RC RX RZ R[ t clearR6 R7 t TrueR8 R9 RD t simplefilterR t messaget Falset strt ret matcht It
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t } q@ n t | | S( s Context manager to silence warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default True without argument,
default False if some filters are defined)
Without argument, it defaults to:
check_warnings(("", Warning), quiet=True)
R R N( R[ t WarningRU R R ( R t kwargsR ( ( s) /usr/lib64/python2.6/test/test_support.pyR s
c O sD t i o | p d t f f } q. n d } t | | i d S( sk Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
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(default False)
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R R ( ( RC t py3kwarningR; R R[ ( R R ( ( s) /usr/lib64/python2.6/test/test_support.pyR s
c B s) e Z d Z d Z d Z d Z RS( s Context manager to force import to return a new module reference.
This is useful for testing module-level behaviours, such as
the emission of a DeprecationWarning on import.
Use like this:
with CleanImport("foo"):
__import__("foo") # new reference
c G ss t i i | _ xZ | D]R } | t i j o< t i | } | i | j o t i | i =n t i | =q q Wd S( N( RC RD t copyt original_modulesR1 ( R t module_namest module_nameR@ ( ( s) /usr/lib64/python2.6/test/test_support.pyR s
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c B s; e Z d Z d Z d Z d Z d Z d Z RS( s_ Class to help protect the environment variable properly. Can be used as
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c C si t t d oU d } xL t o@ y1 t i | t i \ } } | d j o Pn Wq Pq Xq Wn d S( s Use this function at the end of test_main() whenever sub-processes
are started. This will help ensure that no extra children (zombies)
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t waitpidii N( Rk RF R RJ t WNOHANG( t any_processt pidt status( ( s) /usr/lib64/python2.6/test/test_support.pyR/ p s
c C s t i d d | i } | S( s Strip the stderr of a Python process from potential debug output
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of a subprocess.Popen object.
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