twisted.trial._synctest._AssertRaisesContext

class documentation

class _AssertRaisesContext: (source)

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A helper for implementing assertRaises. This is a context manager and a helper method to support the non-context manager version of assertRaises.
Method __enter__ Undocumented
Method __exit__ Check exit exception against expected exception.
Method __init__
Instance Variable exception The exception which was raised by the function being tested (if it raised one).
Method _handle Call the given object using this object as a context manager.
Instance Variable _expected See expected parameter of __init__
Instance Variable _expected​Name A short string describing the expected exception (usually the name of the exception class).
Instance Variable _return​Value The value returned by the callable being tested (only when not being used as a context manager).
Instance Variable _test​Case See testCase parameter of __init__
def __enter__(self): (source)

Undocumented

def __exit__(self, exceptionType, exceptionValue, traceback): (source)
Check exit exception against expected exception.
def __init__(self, testCase, expected): (source)
Parameters
test​CaseThe TestCase instance which is used to raise a test-failing exception when that is necessary.
expectedThe exception type expected to be raised.
exception = (source)
The exception which was raised by the function being tested (if it raised one).
def _handle(self, obj): (source)
Call the given object using this object as a context manager.
Parameters
obj:objectThe object to call and which is expected to raise some exception.
Returns
BaseExceptionWhatever exception is raised by obj().
_expected = (source)
See expected parameter of __init__
_expectedName = (source)
A short string describing the expected exception (usually the name of the exception class).
_returnValue = (source)
The value returned by the callable being tested (only when not being used as a context manager).
_testCase = (source)
See testCase parameter of __init__