def test_maxparts(self):
self.assert_cheap_repr(list(range(8)),
'[0, 1, 2, ..., 5, 6, 7]')
self.assert_cheap_repr(list(range(20)),
'[0, 1, 2, ..., 17, 18, 19]')
with temp_attrs(find_repr_function(list), 'maxparts', 10):
self.assert_cheap_repr(list(range(8)),
'[0, 1, 2, 3, 4, 5, 6, 7]')
self.assert_cheap_repr(list(range(20)),
'[0, 1, 2, 3, 4, ..., 15, 16, 17, 18, 19]')
def test_exceptions(self):
with temp_attrs(cheap_repr, 'raise_exceptions', True):
with self.assertRaises(ValueError):
cheap_repr(ErrorClass(True))
for C in [ErrorClass, OldStyleErrorClass]:
name = C.__name__
self.assert_usual_repr(C())
self.assert_cheap_repr_warns(
C(True),
"Exception 'ValueError' in repr_object for object of type %s. "
"The repr has been suppressed for this type." % name,
'<%s instance at 0xXXX (exception in repr)>' % name,
)
self.assert_cheap_repr(C(), '<%s instance at 0xXXX (repr suppressed)>' % name)
for C in [ErrorClassChild, OldStyleErrorClassChild]:
name = C.__name__
self.assert_cheap_repr(C(), '<%s instance at 0xXXX (repr suppressed)>' % name)
def test_exceptions(self):
with temp_attrs(cheap_repr, 'raise_exceptions', True):
self.assertRaises(ValueError,
lambda: cheap_repr(ErrorClass(True)))
for C in [ErrorClass, OldStyleErrorClass]:
name = C.__name__
self.assert_usual_repr(C())
warning_message = "Exception 'ValueError' in repr_object for object of type %s. " \
"The repr has been suppressed for this type." % name
if PY2 and C is OldStyleErrorClass:
warning_message = warning_message.replace('repr_object', 'repr')
self.assert_cheap_repr_warns(
C(True),
warning_message,
'<%s instance at 0xXXX (exception in repr)>' % name,
)
self.assert_cheap_repr(C(), '<%s instance at 0xXXX (repr suppressed)>' % name)
for C in [ErrorClassChild, OldStyleErrorClassChild]:
name = C.__name__
self.assert_cheap_repr(C(), '<%s instance at 0xXXX (repr suppressed)>' % name)