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Things likely to be used by writers of unit tests.

Maintainer: Jonathan Lange
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    Raise this (with a reason) to skip the current test. You may also set
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    Internal object used to mark a L{TestCase} as 'todo'. Tests marked 'todo'
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    category. If todo'd tests succeed, Trial L{TestResult}s will report an
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        @param reason: A string explaining why the test is marked 'todo'

        @param errors: An iterable of exception types that the test is
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        will be trapped. Raising any other kind of error will fail the test.
        If C{None} is passed, then all errors will be trapped.
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        @param failure: A L{twisted.python.failure.Failure}.

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    Return a L{Todo} object built from C{value}.

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    as the reason and the first element as the excepted error(s).

    @param value: A string or a tuple of C{(errors, reason)}, where C{errors}
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t_WarningcBseZdZd�ZRS(s]
    A L{_Warning} instance represents one warning emitted through the Python
    warning system (L{warnings}).  This is used to insulate callers of
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    otherwise require changes to the warning objects that function passes to
    the observer object it accepts.

    @ivar message: The string which was passed as the message parameter to
        L{warnings.warn}.

    @ivar category: The L{Warning} subclass which was passed as the category
        parameter to L{warnings.warn}.

    @ivar filename: The name of the file containing the definition of the code
        object which was C{stacklevel} frames above the call to
        L{warnings.warn}, where C{stacklevel} is the value of the C{stacklevel}
        parameter passed to L{warnings.warn}.

    @ivar lineno: The source line associated with the active instruction of the
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        parameter passed to L{warnings.warn}.
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    Disable the per-module cache for every module found in C{modules}, typically
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    Call C{f} with C{args} positional arguments and C{kwargs} keyword arguments
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    cs9t|t�st��t|jd|||��dS(Ni(RtWarningtAssertionErrorR&targs(R'R(R)R*tfiletline(tobserveWarning(s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytshowWarning�stalwaysN(RR/tsysR-twarningstfilterstshowwarningtsimplefilter(R5tfR2tkwargsR6torigFilterstorigShowtresult((R5s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pyt_collectWarnings�s

	
	

t_AssertionscBs�eZdZdd�Zdd�ZeZZZdd�Z	e	Z
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    Replaces many of the built-in TestCase assertions. In general, these
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    cCs|j|��dS(s�
        Absolutely fail the test.  Do not pass go, do not collect $200.

        @param msg: the message that will be displayed as the reason for the
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        Fail the test if C{condition} evaluates to True.

        @param condition: any object that defines __nonzero__
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        Fail the test if C{condition} evaluates to False.

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        Fail the test unless calling the function C{f} with the given
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        @param exception: exception type that is to be expected
        @param f: the function to call

        @return: The raised exception instance, if it is of the given type.
        @raise self.failureException: Raised if the function call does
            not raise an exception or if it raises an exception of a
            different type.
        s%s raised instead of %s:
 %sis%s not raised (%r returned)N(RDR8texc_infoRRtFailuretgetTraceback(Rt	exceptionR=R2R>RAtinst((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailUnlessRaises�s	
	tcCso||ksk|dkr!d}nt|�dkr@|d7}n|jd|t|�t|�f��n|S(s�
        Fail the test if C{first} and C{second} are not equal.

        @param msg: A string describing the failure that's included in the
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        RPis
s%snot equal:
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b = %s
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        Fail the test if C{first} is not C{second}.  This is an
        obect-identity-equality test, not an object equality
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        @param msg: if msg is None, then the failure message will be
        '%r is not %r' % (first, second)
        s%r is not %r(RD(RRRRSRE((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailUnlessIdenticals	"cCs2||kr.|j|p%d||f��n|S(s
        Fail the test if C{first} is C{second}.  This is an
        obect-identity-equality test, not an object equality
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        @param msg: if msg is None, then the failure message will be
        '%r is %r' % (first, second)
        s%r is %r(RD(RRRRSRE((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailIfIdentical!s	"cCs2||ks.|j|p%d||f��n|S(s�
        Fail the test if C{first} == C{second}.

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        Fail the test if C{containee} is not found in C{container}.

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        Fail the test if C{containee} is found in C{container}.

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        @param container: a sequence type, or in the case of a mapping type,
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        @param msg: if msg is None, then the failure message will be
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        s%r in %r(RD(RRXRYRE((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailIfInKs
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        Fail if the two objects are equal as determined by their
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        Fail if the two objects are unequal as determined by their
        difference rounded to the given number of decimal places
        (default 7) and comparing to zero.

        @note: decimal places (from zero) is usually not the same
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               signficant digit).

        @note: included for compatiblity with PyUnit test cases
        is%r != %r within %r places(R\RD(RRRRSR]RE((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailUnlessAlmostEqualnscCs<t||�|kr8|j|p/d||f��n|S(s�
        Fail if C{first} - C{second} > C{tolerance}

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        Fail if C{deferred} does not errback with one of C{expectedFailures}.
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        cs�jd|f��dS(Ns&did not catch an error, instead got %r(RD(tignore(R(s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pyt_cb�scs?|j��r|jSd�t|�f}�j|��dS(Ns
Expected: %r
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%s(RR$R RD(Rtoutput(RtexpectedFailures(s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pyt_eb�s
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        Fail if C{substring} does not exist within C{astring}.
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        Fail if the given function doesn't generate the specified warning when
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        @param message: the output message of the warning to check.
        @param filename: the filename where the warning should come from.
        @param f: the function which is supposed to generate the warning.
        @type f: any callable.
        @param args: the arguments to C{f}.
        @param kwargs: the keywords arguments to C{f}.

        @return: the result of the original function C{f}.
        sNo warnings emittediisCan't handle different warningssWarning in %r, expected %r(
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        Fail if C{instance} is not an instance of the given class or of
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        @param instance: the object to test the type (first argument of the
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        @type instance: any.
        @param classOrTuple: the class or classes to test against (second
            argument of the C{isinstance} call).
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        @param message: Custom text to include in the exception text if the
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        RPs: s%r is not an instance of %s%sN(RRRF(RtinstancetclassOrTupleR'tsuffix((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailUnlessIsInstance�s	
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        Fail if C{instance} is not an instance of the given class or of
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        @type classOrTuple: class, type, or tuple.
        s%r is an instance of %sN(RRF(RRuRv((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pytfailIfIsInstance�sN(5RRRRRFRHt	assertNottassertFalsetfailUnlessFalseRItassert_t
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		*	t_LogObservercBsVeZdZd�Zd�Zd�Zd�Zd�Zd�Zd�Z	d�Z
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    Observes the Twisted logs and catches any errors.

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    cCsg|_d|_g|_dS(Ni(t_errorst_addedt_ignored(R((s:/usr/lib/python2.7/dist-packages/twisted/trial/unittest.pyRs		cCs�|jdkrmtj|j�tj|j|_t_tj|j|_	t_tj
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        The actual observer method. Called whenever a message is logged.

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									tTestCasecBs�eZdZeej�eZdd�Ze	j
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    A unit test. The atom of the unit testing universe.

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    'test_foo') on the subclass. To run the test, instantiate your subclass
    with the name of the method, and call L{run} on the instance, passing a
    L{TestResult} object.

    The C{trial} script will automatically find any C{TestCase} subclasses
    defined in modules beginning with 'test_' and construct test cases for all
    methods beginning with 'test'.

    If an error is logged during the test run, the test will fail with an
    error. See L{log.err}.

    @ivar failureException: An exception class, defaulting to C{FailTest}. If
    the test method raises this exception, it will be reported as a failure,
    rather than an exception. All of the assertion methods raise this if the
    assertion fails.

    @ivar skip: C{None} or a string explaining why this test is to be
    skipped. If defined, the test will not be run. Instead, it will be
    reported to the result object as 'skipped' (if the C{TestResult} supports
    skipping).

    @ivar suppress: C{None} or a list of tuples of C{(args, kwargs)} to be
    passed to C{warnings.filterwarnings}. Use these to suppress warnings
    raised in a test. Useful for testing deprecated code. See also
    L{util.suppress}.

    @ivar timeout: A real number of seconds. If set, the test will
    raise an error if it takes longer than C{timeout} seconds.
    If not set, util.DEFAULT_TIMEOUT_DURATION is used.

    @ivar todo: C{None}, a string or a tuple of C{(errors, reason)} where
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        Construct an asynchronous test case for C{methodName}.

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