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Tests for Trial's interaction with the Python warning system.
i’’’’N( t StringIO( t FilePath( t TestCaset _collectWarningst _setWarningRegistryToNone( t
TestResultt Maskc B s$ e Z d Z d e f d YZ RS( sS
Hide a L{TestCase} definition from trial's automatic discovery mechanism.
t MockTestsc B s, e Z d Z d Z e Z d Z d Z RS( s
A test case which is used by L{FlushWarningsTests} to verify behavior
which cannot be verified by code inside a single test method.
s some warning textc C s t j | j | j d S( s@
Generate a warning and don't flush it.
N( t warningst warnt messaget category( t self( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_unflushed s c C s6 t j | j | j | j t | j d d S( s:
Generate a warning and flush it.
i N( R R R
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flushWarnings( R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_flushed# s ( t __name__t
__module__t __doc__R
t UserWarningR R
R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR s
( R R R R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR s t FlushWarningsTestsc B s e Z d Z d Z d Z d Z d Z d Z d Z d Z d Z
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Tests for L{TestCase.flushWarnings}, an API for examining the warnings
emitted so far in a test.
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Assert that all the keys present in C{subset} are also present in
C{set} and that the corresponding values are equal.
N( t iteritemsR ( R t sett subsett kt v( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt assertDictSubset2 s c C sP | j t | t | x- t | | D] \ } } | j | | q, Wd S( sµ
For each pair of corresponding elements in C{sets} and C{subsets},
assert that the element from C{subsets} is a subset of the element from
C{sets}.
N( R R t zipR ( R t setst subsetst at b( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt assertDictSubsets; s c C s | j | j g d S( sp
If no warnings are emitted by a test, L{TestCase.flushWarnings} returns
an empty list.
N( R R ( R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_noneF s c C s d } t } t j d | d | d } t } t j d | d | | j | j i | d 6| d 6i | d 6| d 6g d S( s
If several warnings are emitted by a test, L{TestCase.flushWarnings}
returns a list containing all of them.
s first warning messageR
R s second warning messageN( R R R t RuntimeWarningR" R ( R t firstMessaget
firstCategoryt
secondMessaget secondCategory( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_severalN s c C sh d } t } x* t d D] } t j d | d | q W| j | j i | d 6| d 6g d d S( s
The same warning triggered twice from the same place is included twice
in the list returned by L{TestCase.flushWarnings}.
s the messagei R
R N( R$ t rangeR R R" R ( R R
R t i( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt
test_repeateda s c C sc d } t } t j d | d | | j | j i | d 6| d 6g | j | j g d S( s
After a particular warning event has been returned by
L{TestCase.flushWarnings}, it is not returned by subsequent calls.
s the messageR
R N( R$ R R R" R R ( R R
R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_clearedp s c C sÜ t } t j d } | j | | j t j j g } | j | d d d | j | d d t | j j j
} | j } | j d } | j | d d | | j | d d | | j t
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Any warnings emitted by a test which are not flushed are emitted to the
Python warning system.
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s some warning textR i t filenamet linenoi N( R R R t runR R
R t assertIdenticalR t im_funct func_codet co_filenamet co_firstlinenoR ( R t resultt caset
warningsShownt whereR. R/ ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR
~ s
c C sg t } t j d } t } | j t d | } | j | | j | j | j d d S( sx
Any warnings emitted by a test which are flushed are not emitted to the
Python warning system.
R t stdoutt N(
R R R R t patcht sysR0 t restoreR t getvalue( R R6 R7 t outputt monkey( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR s
c C s½ d t f d Y} t } t j d } | | _ t j } zj t j d | j | | j t
| j d | j | j d d | | j d d j
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If a warnings filter has been installed which turns warnings into
exceptions, tests have an error added to the reporter for them for each
unflushed warning.
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CustomWarningc B s e Z RS( ( R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRB Ŗ s R
t errori i N( t WarningR R R R R t filterst simplefilterR0 R R t errorsR1 t trap( R RB R6 R7 t originalWarnings( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_warningsConfiguredAsErrors¤ s
c C s d t f d Y} t } t j d } | | _ t j } z1 t j d | j | | j | j
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If a warnings filter has been installed which turns warnings into
exceptions, tests which emit those warnings but flush them do not have
an error added to the reporter.
RB c B s e Z RS( ( R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRB Ā s R RC N( RD R R R R R RE RF R0 R RG ( R RB R6 R7 RI ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt& test_flushedWarningsConfiguredAsErrors¼ s
c C sV t j d | j t | j d t j d | j t | j d d S( s
Any warnings emitted after a call to L{TestCase.flushWarnings} can be
flushed by another call to L{TestCase.flushWarnings}.
s
first messagei s second messageN( R R R R R ( R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_multipleFlushesŅ s
c s® d t f d } d t f d } | | | j | j d | g i d 6 d 6g | j | j d | g i d 6 d 6g d S( sī
The list returned by L{TestCase.flushWarnings} includes only those
warnings which refer to the source of the function passed as the value
for C{offendingFunction}, if a value is passed for that parameter.
s first warning textc s t j d d d S( Nt
stackleveli ( R R ( ( R% R& ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt oneå s s some textc s t j d d d S( NRM i ( R R ( ( R( R' ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt twoź s t offendingFunctionsR R
N( R R$ R" R ( R RN RO ( ( R% R' R( R& sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_filterOnOffendingFunctionŻ s c C s9 d } | | j t | j d | g d d S( s
Verify that warnings emitted at the very edges of a function are still
determined to be emitted from that function.
c S s+ t j d t j d t j d d S( Ns first line warnings internal line warnings last line warning( R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt warnerż s
RP i N( R R R ( R RR ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_functionBoundariesų s c C sF t j d | j t | j d g | j t | j d d S( sŲ
If an object which is neither a function nor a method is included in
the C{offendingFunctions} list, L{TestCase.flushWarnings} raises
L{ValueError}. Such a call flushes no warnings.
s oh noi N( R R t assertRaisest
ValueErrorR t NoneR R ( R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_invalidFilter s
c C s t | j j d } | j | j d j d | j d j d t j j d | j j | j t j j
| j j d d l m } | j t j
j d | j t j
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Warnings emitted by a function the source code of which is not
available can still be flushed.
t twisted_private_helpers __init__.pyR; s missingsourcefile.pys7
import warnings
def foo():
warnings.warn("oh no")
i i’’’’( t missingsourcefilei N( R t mktempt childt makedirst
setContentR= t patht insertt parentt
addCleanupt removeRX RY t modulest popR t fooR R R ( R t packageRY ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_missingSource s
c C s; t | j j d } | j | j d j d | j d j d t j j d | j j | j t j j
| j j d d l m } t j
d =t j
| j =| j | j d d d l m } | j t j
j d | j t j
j | j | j | j t | j | j g d
d S( s
Warnings emitted by a function defined in a file which has been renamed
since it was initially compiled can still be flushed.
This is testing the code which specifically supports working around the
unfortunate behavior of CPython to write a .py source file name into
the .pyc files it generates and then trust that it is correct in
various places. If source files are renamed, .pyc files may not be
regenerated, but they will contain incorrect filenames.
RX s __init__.pyR; s module.pys7
import warnings
def foo():
warnings.warn("oh no")
i i’’’’( t modulet twisted_renamed_helperi N( R RZ R[ R\ R] R= R^ R_ R` Ra Rb RX Rh Rc R t moveTot siblingRi Rd Re R R R ( R Rf Rh ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_renamedSource* s
( R R R R R" R# R) R, R- R
R RJ RK RL RQ RS RW Rg Rl ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR , s" t FakeWarningc B s e Z RS( ( R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRm X s t CollectWarningsTestsc B sD e Z d Z d Z d Z d Z d Z d Z d Z RS( s(
Tests for L{_collectWarnings}.
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L{_collectWarnings} calls the observer with each emitted warning.
s dummy calls observer warningNi’’’’c s8 j d t j t j j d d S( Nt callt returning( t appendR R ( ( R% R' t events( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt fh s
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R ( R Rs ( ( R% R' Rr sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_callsObservera s c C sL t } | j t d | t d t j d | j | j d d S( s
Any warnings emitted by a call to a function passed to
L{_collectWarnings} are not actually emitted to the warning system.
R: c S s d S( N( RV ( t x( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt <lambda>~ s t textR; N( R R< R= R R R R R? ( R R@ ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_suppressesw s c s g t f d } t d | d d d d d d } | j d
i d d 6d d 6f g | j | d S( s
L{_collectWarnings} returns the result of calling the callable passed to
it with the parameters given.
c s j | | f S( N( Rq ( t argst kwargs( t argumentst value( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRs s c S s d S( N( RV ( Ru ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRv s i R R! i t ct dN( i R ( t objectR R R1 ( R Rs R6 ( ( R| R{ sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_callsFunction s $'c C s b d } t j d | g } t | j | | j t | d | j | d j d | j t | j d d S( sģ
Subsequent emissions of a warning from a particular source site can be
collected by L{_collectWarnings}. In particular, the per-module
emitted-warning cache should be bypassed (I{__warningregistry__}).
c S s t j d d S( NRe ( R R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRs ” s t defaulti i Re N( t __warningregistry__R RF R Rq R R R
R ( R Rs Rr ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_duplicateWarningCollected s
c C s: t } | t j | <| j t j j | | j d S( s±
L{_collectWarnings}'s behavior is not altered by the presence of an
object which cannot have attributes set on it as a value in
C{sys.modules}.
N( R R= Rc Ra Rd R ( R t key( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt test_immutableObject¬ s
c s¢ i d t f f d Y} t } t } | | | <t } t } | | | <t | j t | | | | g t j d S( sŁ
If the dictionary passed to L{_setWarningRegistryToNone} changes size
partway through the process, C{_setWarningRegistryToNone} continues to
set C{__warningregistry__} to C{None} on the rest of the values anyway.
This might be caused by C{sys.modules} containing something that's not
really a module and imports things on setattr. py.test does this, as
does L{twisted.python.deprecate.deprecatedModuleAttribute}.
t Ac s e Z d Z f d Z RS( c S s | | j d <d S( Nt _key( t __dict__( R R ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt __init__Ę s c s d | j <d S( N( RV R ( R R| t item( R~ ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt __setattr__É s ( R R R R ( ( R~ ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyR Å s N( R R R R t keys( R R t key1t key2t key3t key4( ( R~ sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt+ test_setWarningRegistryChangeWhileIteratingø s
( R R R Rt Rx R R R
R ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyRn ] s ( R R= R R t twisted.python.filepathR t twisted.trial.unittestR R R t twisted.trial.reporterR R R R RD Rm Rn ( ( ( sC /usr/lib/python2.7/dist-packages/twisted/trial/test/test_warning.pyt <module> s ’ -