with self.failUnlessRaises(some_error_class):
do_something()
+ The context manager will store the caught exception object in its
+ :attr:`exc_value` attribute. This can be useful if the intention
+ is to perform additional checks on the exception raised.
+
.. versionchanged:: 3.1
Added the ability to use :meth:`assertRaises` as a context manager.
frozensets, file objects, :term:`generator`\s, type objects, sockets, arrays,
deques, and regular expression pattern objects.
+.. versionchanged:: 2.7
+ Added support for thread.lock and threading.Lock.
+
Several built-in types such as :class:`list` and :class:`dict` do not directly
support weak references but can add support through subclassing::
self.assertRaisesRegexp, Exception,
re.compile('^Expected$'), Stub)
+ def testAssertRaisesExcValue(self):
+ class ExceptionMock(Exception):
+ pass
+
+ def Stub(foo):
+ raise ExceptionMock(foo)
+ v = "particular value"
+
+ ctx = self.assertRaises(ExceptionMock)
+ with ctx:
+ Stub(v)
+ e = ctx.exc_value
+ self.assertTrue(isinstance(e, ExceptionMock))
+ self.assertEqual(e.args[0], v)
+
def testSynonymAssertMethodNames(self):
"""Test undocumented method name synonyms.
if not issubclass(exc_type, self.expected):
# let unexpected exceptions pass through
return False
+ self.exc_value = exc_value #store for later retrieval
if self.expected_regex is None:
return True
/* Interface to Sjoerd's portable C thread library */
#include "Python.h"
+#include "structmember.h" /* offsetof */
#ifndef WITH_THREAD
#error "Error! The rest of Python is not compiled with thread support."
typedef struct {
PyObject_HEAD
PyThread_type_lock lock_lock;
+ PyObject *in_weakreflist;
} lockobject;
static void
lock_dealloc(lockobject *self)
{
assert(self->lock_lock);
+ if (self->in_weakreflist != NULL)
+ PyObject_ClearWeakRefs((PyObject *) self);
/* Unlock the lock so it's safe to free it */
PyThread_acquire_lock(self->lock_lock, 0);
PyThread_release_lock(self->lock_lock);
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
- Py_TPFLAGS_DEFAULT, /*tp_flags*/
+ Py_TPFLAGS_DEFAULT, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
- 0, /*tp_weaklistoffset*/
+ offsetof(lockobject, in_weakreflist), /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
lock_methods, /*tp_methods*/
if (self == NULL)
return NULL;
self->lock_lock = PyThread_allocate_lock();
+ self->in_weakreflist = NULL;
if (self->lock_lock == NULL) {
PyObject_Del(self);
self = NULL;