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Things likely to be used by writers of unit tests.
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unexpected success.
@ivar reason: A string explaining why the test is marked 'todo'
@ivar errors: An iterable of exception types that the test is expected to
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argument of the C{isinstance} call).
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I{coroutine} which has a success result.
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L{Deferred.callback<twisted.internet.defer.Deferred.callback>} or
L{Deferred.errback<twisted.internet.defer.Deferred.errback>} has
been called on it and it has reached the end of its callback chain
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result.
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failure result.
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@type deferred: L{Deferred<twisted.internet.defer.Deferred>}
@param expectedExceptionTypes: Exception types to expect - if
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not one of the types provided, then this test will fail.
@raise SynchronousTestCase.failureException: If the
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success result, or has an unexpected failure result.
@return: The failure result of C{deferred}.
@rtype: L{failure.Failure}
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less the number of times C{_remove} has been called; used to only add
this observer to the Twisted logging since once, regardless of the
number of calls to the add method.
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A unit test. The atom of the unit testing universe.
This class extends C{unittest.TestCase} from the standard library. A number
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integration, monkey-patching support, and more.
To write a unit test, subclass C{SynchronousTestCase} and define a method
(say, '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{SynchronousTestCase}
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: L{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 todo: L{None}, a string or a tuple of C{(errors, reason)} where
C{errors} is either an exception class or an iterable of exception
classes, and C{reason} is a string. See L{Todo} or L{makeTodo} for more
information.
@ivar suppress: L{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
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method twice. Most likely, trial should stop using a set to hold
tests, but until it does, this is necessary on Python 2.6. -exarkun
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instance first, then the class, then the module, then packages. As
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a tuple (L{True}, L{str}).
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library L{unittest.skip} function.
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See L{TestCase} docstring for more details.
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Run the test case, storing the results in C{result}.
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re-apply the monkey patch within their tests.
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C{TestCase} stores each error logged during the run of the test and
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@return: A list of failures that have been removed.
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All warnings include a filename and source line number; if these
parts of a warning point to a source line which is part of a
function, then the warning I{points} to that function.
@type offendingFunctions: L{None} or L{list} of functions or methods.
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an object which is not a L{types.FunctionType} or
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information about one warning which was flushed by this call. The
keys of each C{dict} are:
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parameter to L{warnings.warn}.
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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}.
- C{'lineno'}: The source line associated with the active
instruction of the code object object which was C{stacklevel}
frames above the call to L{warnings.warn}, where
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Retrieve a module attribute which should have been deprecated,
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@type moduleName: C{str}
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the deprecated attribute; if called from the same module as the
attributes are being deprecated in, using the C{__name__} global can
be helpful
@type name: C{str}
@param name: Attribute name which we expect to be deprecated
@param version: The first L{version<twisted.python.versions.Version>} that
the module attribute was deprecated.
@type message: C{str}
@param message: (optional) The expected deprecation message for the module attribute
@return: The given attribute from the named module
@raise FailTest: if no warnings were emitted on getattr, or if the
L{DeprecationWarning} emitted did not produce the canonical
please-use-something-else message that is standard for Twisted
deprecations according to the given version and replacement.
@since: Twisted 21.2.0
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Call a function that should have been deprecated at a specific version
and in favor of a specific alternative, and assert that it was thusly
deprecated.
@param version: A 2-sequence of (since, replacement), where C{since} is
a the first L{version<incremental.Version>} that C{f}
should have been deprecated since, and C{replacement} is a suggested
replacement for the deprecated functionality, as described by
L{twisted.python.deprecate.deprecated}. If there is no suggested
replacement, this parameter may also be simply a
L{version<incremental.Version>} by itself.
@param f: The deprecated function to call.
@param args: The arguments to pass to C{f}.
@param kwargs: The keyword arguments to pass to C{f}.
@return: Whatever C{f} returns.
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raised by C{f}, though, no assertions will be made about emitted
deprecations.
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