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Things likely to be used by writers of unit tests.
Maintainer: Jonathan Lange
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Internal object used to mark a L{TestCase} as 'todo'. Tests marked 'todo'
are reported differently in Trial L{TestResult}s. If todo'd tests fail,
they do not fail the suite and the errors are reported in a separate
category. If todo'd tests succeed, Trial L{TestResult}s will report an
unexpected success.
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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
expected to raise. If one of these errors is raised by the test, it
will be trapped. Raising any other kind of error will fail the test.
If L{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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A L{_Warning} instance represents one warning emitted through the Python
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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
code object object which was C{stacklevel} frames above the call to
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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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Wrap a C{TestResult} from the standard library's C{unittest} so that it
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Report the skip as a failure.
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Report the unexpected success as a failure.
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A helper for implementing C{assertRaises}. This is a context manager and a
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@ivar _expected: See C{expected} parameter of C{__init__}
@ivar _returnValue: The value returned by the callable being tested (only
when not being used as a context manager).
@ivar _expectedName: A short string describing the expected exception
(usually the name of the exception class).
@ivar exception: The exception which was raised by the function being
tested (if it raised one).
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Call the given object using this object as a context manager.
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Replaces many of the built-in TestCase assertions. In general, these
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@return: If C{f} is L{None}, a context manager which will make an
assertion about the exception raised from the suite it manages. If
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@param filename: the filename where the warning should come from.
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@param classOrTuple: the class or classes to test against (second
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been called on it and it has reached the end of its callback chain
and the last callback or errback returned a non-L{failure.Failure}.
@type deferred: L{Deferred<twisted.internet.defer.Deferred>}
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provided, and the exception wrapped by the failure result is
not one of the types provided, then this test will fail.
@raise SynchronousTestCase.failureException: If the
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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.
@ivar _ignored: A C{list} of exception types which will not be recorded.
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A unit test. The atom of the unit testing universe.
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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
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assertion fails.
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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
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classes, and C{reason} is a string. See L{Todo} or L{makeTodo} for more
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@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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Run the test case, storing the results in C{result}.
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Run a single method, either a test method or fixture.
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