[XMc@ssdZddlZddlZddlZddlmZmZddlmZyddl m Z Wne k r}dZ nXdZ dejfdYZd efd YZd efd YZd eefdYZdejfdYZdejfdYZdejfdYZdejfdYZejd dkroddlmZndS(s Test cases for failure module. iN(tunittesttutil(tfailure(traisercCs&y ddWntj}nX|S(Nii(RtFailure(tf((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pytgetDivisionFailures  tFailureTestCasecBseZdZdZdZdZdZdZdZde_ dZ d Z d Z e jd d ge _d Ze jd d ge_ejd dkrdZee _ee_ndZdZdZdZRS(cCs_ytdWntj}nX|jtt}|j|t|j|jtdS(sTrapping a failure.ttestN(tNotImplementedErrorRRttrapt SystemExitt RuntimeErrort assertEqualsttype(tselfRterror((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttestFailAndTrap scCs@y tWntj}nX|jtj|jtdS(s0Making sure trap doesn't trap what it shouldn't.N(t ValueErrorRRt assertRaisesR t OverflowError(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_notTrapped*s  cCsYtj}y ddWntj}nX|j||j||j|dS(Nii(tStringIORRtprintDetailedTracebacktprintBriefTracebacktprintTraceback(RtoutR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt testPrinting2s    cCs<t}tj|}|jt|j|j|dS(N(R RRR R tvalue(RteR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttestExplictPass<s  cCsTy|jWn3tk rCtjtjd}|ddSXtddS(Niis3f.raiseException() didn't raise ZeroDivisionError!?(traiseExceptiontZeroDivisionErrort tracebackt extract_tbtsystexc_infot Exception(RRttb((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt_getInnermostFrameLineCs  cCs,t}|j|}|j|ddS(Ns1/0(RR'R (RRt innerline((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttestRaiseExceptionWithTBNs cCs6t}|j|j|}|j|ddS(Ns1/0(Rt cleanFailureR'R (RRR(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt testLackOfTBTs  sQthe traceback is not preserved, exarkun said he'll try to fix this! god knows hows bugger offcCs'y |jWntj}nX|S(N(t_stringExceptionRR(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt_getStringFailure^s  cCsQ|j}y|jWn$|jtjd|jn XtddS(NisShould have raised(R-RR R#R$R,tAssertionError(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_raiseStringExceptionses  !tmessages(raising a string exception is deprecatedcCsU|j}tj}|jd||jj}|j|d|jdS(s L{Failure.printTraceback} should write out stack and exception information, even for string exceptions. tfileiN(R-RRtgetvaluet splitlinest assertEqualR,(RRtoutputtlines((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_printStringExceptionsrs   iis>String exceptions aren't supported anymore starting Python 2.6cCs|jtjtjdS(s Creating a Failure with no arguments causes it to try to discover the current interpreter exception state. If no such state exists, creating the Failure should raise a synchronous exception. N(RRtNoCurrentExceptionErrorR(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttestConstructionFailsscCs&t}|j|j|jdS(s If the C{Failure} has not been cleaned, then C{getTracebackObject} should return the traceback object that it was given in the constructor. N(RR4tgetTracebackObjectR&(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_getTracebackObjects cCsQt}tj|j}|jtj|j}|j||dS(s If the Failure has been cleaned, then C{getTracebackObject} should return an object that looks the same to L{traceback.extract_tb}. N(RR!R"R:R*R4(RRtexpectedtobserved((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt test_getTracebackObjectFromCleans   cCs/tjtd}|j|jddS(s L{failure.Failure}s need not be constructed with traceback objects. If a C{Failure} has no traceback information at all, C{getTracebackObject} should just return None. None is a good value, because traceback.extract_tb(None) -> []. s some errorN(RRR%R4R:tNone(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt'test_getTracebackObjectWithoutTracebacks(ii(t__name__t __module__RRRRR'R)R+ttodoR,R-R/RtsuppressR7R#t version_infotskipMsgtskipR9R;R>R@(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRs,            t BrokenStrcBseZdZdZRS(sb An exception class the instances of which cannot be presented as strings via C{str}. cCs |dS(N((R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt__str__s(RARBt__doc__RI(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRHstBrokenExceptionMetaclasscBseZdZdZRS(sa A metaclass for an exception type which cannot be presented as a string via C{str}. cCstddS(Ns#You cannot make a string out of me.(R(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRIs(RARBRJRI(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRKstBrokenExceptionTypecBseZdZeZRS(sa The aforementioned exception type which cnanot be presented as a string via C{str}. (RARBRJRKt __metaclass__(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRLstGetTracebackTestscBsVeZdZdZdZdZdZdZdZdZ dZ RS( s, Tests for L{Failure.getTraceback}. cCs>t}tj|}|jd|}|j|tdS(s Construct a L{Failure} with an exception that raises an exception from its C{__str__} method and then call C{getTraceback} with the specified detail and verify that it returns a string. tdetailN(RHRRt getTracebacktassertIsInstancetstr(RROtxRR!((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt_brokenValueTests cCs|jddS(s A L{Failure} might wrap an exception with a C{__str__} method which raises an exception. In this case, calling C{getTraceback} on the failure with the C{"brief"} detail does not raise an exception. tbriefN(RT(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenValueBriefDetailscCs|jddS(sY Like test_brokenValueBriefDetail, but for the C{"default"} detail case. tdefaultN(RT(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenValueDefaultDetailscCs|jddS(sY Like test_brokenValueBriefDetail, but for the C{"default"} detail case. tverboseN(RT(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenValueVerboseDetailscCs8tjt}|jd|}|j|tdS(s Construct a L{Failure} with an exception type that raises an exception from its C{__str__} method and then call C{getTraceback} with the specified detail and verify that it returns a string. RON(RRRLRPRQRR(RRORR!((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt_brokenTypeTestscCs|jddS(s A L{Failure} might wrap an exception the type object of which has a C{__str__} method which raises an exception. In this case, calling C{getTraceback} on the failure with the C{"brief"} detail does not raise an exception. RUN(R[(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenTypeBriefDetailscCs|jddS(sX Like test_brokenTypeBriefDetail, but for the C{"default"} detail case. RWN(R[(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenTypeDefaultDetail scCs|jddS(sX Like test_brokenTypeBriefDetail, but for the C{"verbose"} detail case. RYN(R[(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_brokenTypeVerboseDetails( RARBRJRTRVRXRZR[R\R]R^(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRNs   tFindFailureTestscBsYeZdZdZdZdZdZdZedkrWdZ e e_ nRS(sE Tests for functionality related to L{Failure._findFailure}. cCs@y ddWn |jtjjdnX|jddS(s Within an exception handler, _findFailure should return C{None} in case no Failure is associated with the current exception. iisNo exception raised from 1/0!?N(R4RRt _findFailureR?tfail(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt$test_findNoFailureInExceptionHandlers  cCs7|jtjdd|jtjjddS(sS Outside of an exception handler, _findFailure should return None. iN(R4R#R$R?RRR`(R((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_findNoFailure-scCsUt}|jy|jWn |jtjj|nX|jddS(s Within an exception handler, it should be possible to find the original Failure that caused the current exception (if it was caused by raiseException). s)No exception raised from raiseException!?N(RR*RR4RRR`Ra(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_findFailure5s  cCsdt}|jy|jWn/tj}|j|j|jnX|jddS(s When a Failure is constructed in the context of an exception handler that is handling an exception raised by raiseException, the new Failure should be chained to that original Failure. s)No exception raised from raiseException!?N(RR*RRRR4RPRa(RRtnewF((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt,test_failureConstructionFindsOriginalFailureEs    cCs[ytjWn9tjk rItj}|j|jtjnX|jddS(s Pyrex and Cython are known to insert fake stack frames so as to give more Python-like tracebacks. These stack frames with empty code objects should not break extraction of the exception. s$No exception raised from extension?!N(RRtRaiserExceptionRRt assertTruetcheckRa(RR((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyt/test_failureConstructionWithMungedStackSucceedsWs  sraiser extension not availableN( RARBRJRbRcRdRfRjRR?RFRG(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyR_s      tTestFormattableTracebackcBs eZdZdZdZRS(s Whitebox tests that show that L{failure._Traceback} constructs objects that can be used by L{traceback.extract_tb}. If the objects can be used by L{traceback.extract_tb}, then they can be formatted using L{traceback.format_tb} and friends. cCsAtjdddiigg}|jtj|dgdS(s A C{_Traceback} object constructed with a single frame should be able to be passed to L{traceback.extract_tb}, and we should get a singleton list containing a (filename, lineno, methodname, line) tuple. tmethods filename.pyi{N(s filename.pyi{smethodN(Rt _TracebackR4R!R"R?(RR&((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_singleFrameus!cCsVtjdddiigdddiigg}|jtj|ddgdS( s A C{_Traceback} object constructed with multiple frames should be able to be passed to L{traceback.extract_tb}, and we should get a list containing a tuple for each frame. tmethod1s filename.pyi{tmethod2iN(s filename.pyi{RoN(s filename.pyiRpN(RRmR4R!R"R?(RR&((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_manyFramess (RARBRJRnRq(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRkls tTestFrameAttributescBseZdZdZRS(sq _Frame objects should possess some basic attributes that qualify them as fake python Frame objects. cCsRtjdd}|j|jt|j|jt|j|jtjdS(s L{_Frame} instances have the C{f_globals} and C{f_locals} attributes bound to C{dict} instance. They also have the C{f_code} attribute bound to something like a code object. t dummynamet dummyfilenameN(Rt_FrameRQt f_globalstdicttf_localstf_codet_Code(Rtframe((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyttest_fakeFrameAttributess(RARBRJR|(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyRrsii(tTwoPointFiveFailureTests(ii(RJR#RR!t twisted.trialRRttwisted.pythonRt twisted.testRt ImportErrorR?RtTestCaseRR%RHRRKtobjectRLRNR_RkRrREt$twisted.test.generator_failure_testsR}(((s=/usr/lib/python2.7/dist-packages/twisted/test/test_failure.pyts(         KR%