def predicate(self, *args, **kwargs):
"""the default predicate for Support Classifiers invokes any derivied
_predicate function, trapping any exceptions raised in the process. We
are obligated to catch these exceptions to give subsequent rules the
opportunity act. An error during the predicate application is a
failure of the rule, not a failure of the classification system itself
"""
try:
return self._predicate(*args, **kwargs)
except Exception, x:
if not self.config:
if 'processor' in kwargs:
self.config = kwargs['processor'].config
else:
raise
self.config.logger.debug(
'skunk_classifier: %s predicicate failed because of "%s"',
arbitrary_object_to_string(self.__class__),
arbitrary_object_to_string(x),
exc_info=True)
return False
def test_arbitrary_object_to_string(self):
function = converters.py_obj_to_str
self.assertEqual(function(None), '')
self.assertEqual(function('hello'), 'hello')
config = DotDict()
config.a = 17
config.b = 23
a = Alpha(config)
self.assertEqual(converters.arbitrary_object_to_string(a),
"I am an instance of an Alpha object")
a = AlphaBad1(config)
self.assertEqual(converters.arbitrary_object_to_string(a), "int")
a = AlphaBad2(config)
self.assertEqual(converters.arbitrary_object_to_string(a), "int")
a = AlphaBad3(config)
self.assertEqual(converters.arbitrary_object_to_string(a), "int")
self.assertEqual(converters.arbitrary_object_to_string(IndexError),
"IndexError")
self.assertEqual(converters.arbitrary_object_to_string(Beta),
"configman.tests.test_converters.Beta")
from configman import tests as tests_module
self.assertEqual(function(tests_module), 'configman.tests')
def predicate(self, *args, **kwargs):
"""the default predicate for Support Classifiers invokes any derivied
_predicate function, trapping any exceptions raised in the process. We
are obligated to catch these exceptions to give subsequent rules the
opportunity act. An error during the predicate application is a
failure of the rule, not a failure of the classification system itself
"""
try:
return self._predicate(*args, **kwargs)
except Exception as x:
if not self.config:
if 'processor' in kwargs:
self.config = kwargs['processor'].config
else:
raise
self.config.logger.debug(
'skunk_classifier: %s predicicate failed because of "%s"',
arbitrary_object_to_string(self.__class__),
arbitrary_object_to_string(x),
exc_info=True
)
return False
def test_arbitrary_object_to_string(self):
function = converters.py_obj_to_str
self.assertEqual(function(None), '')
self.assertEqual(function('hello'), 'hello')
config = DotDict()
config.a = 17
config.b = 23
a = Alpha(config)
self.assertEqual(
converters.arbitrary_object_to_string(a),
"I am an instance of an Alpha object"
)
a = AlphaBad1(config)
self.assertEqual(
converters.arbitrary_object_to_string(a),
"int"
)
a = AlphaBad2(config)
self.assertEqual(
converters.arbitrary_object_to_string(a),
"int"
)
a = AlphaBad3(config)
self.assertEqual(
converters.arbitrary_object_to_string(a),
"int"
)
self.assertEqual(
converters.arbitrary_object_to_string(IndexError),
"IndexError"
)
self.assertEqual(
converters.arbitrary_object_to_string(Beta),
"configman.tests.test_converters.Beta"
)
from configman import tests as tests_module
self.assertEqual(function(tests_module), 'configman.tests')
