twisted.trial._synctest._AssertRaisesContext : API documentation

A helper for implementing assertRaises. This is a context manager and a helper method to support the non-context manager version of assertRaises.

Instance Variable	exception	The exception which was raised by the function being tested (if it raised one).
Method	__init__
Method	__enter__	Undocumented
Method	__exit__	Check exit exception against expected exception.
Instance Variable	_testCase	See `testCase` parameter of `__init__`
Instance Variable	_expected	See `expected` parameter of `__init__`
Instance Variable	_returnValue	The value returned by the callable being tested (only when not being used as a context manager).
Instance Variable	_expectedName	A short string describing the expected exception (usually the name of the exception class).
Method	_handle	Call the given object using this object as a context manager.

_testCase =

See testCase parameter of __init__

_expected =

See expected parameter of __init__

_returnValue =

The value returned by the callable being tested (only when not being used as a context manager).

_expectedName =

A short string describing the expected exception (usually the name of the exception class).

exception =

The exception which was raised by the function being tested (if it raised one).

def __init__(self, testCase, expected): (source)

Parameters	testCase	The `TestCase` instance which is used to raise a test-failing exception when that is necessary.
	expected	The exception type expected to be raised.

def _handle(self, obj): (source)

Call the given object using this object as a context manager.

Parameters	obj	The object to call and which is expected to raise some exception. (type: `object`)
Returns	Whatever exception is raised by `obj()`. (type: `BaseException`)

def __enter__(self): (source)

Undocumented

def __exit__(self, exceptionType, exceptionValue, traceback): (source)

Check exit exception against expected exception.

twisted.trial._synctest._AssertRaisesContext(object) class documentation