+ def test_can_seek_ns_from_origin_without_seek_ns_from_origin(self):
+ # Test the case where:
+ #
+ # - can_seek_ns_from_origin: Returns True (don't really care, as long
+ # as it's provided)
+ # - seek_ns_from_origin provided: No
+ # - can the iterator seek beginning: Don't care
+ # - can the iterator seek forward: Don't care
+ for can_seek_ns_from_origin in (False, True):
+ for iter_can_seek_beginning in (False, True):
+ for iter_can_seek_forward in (False, True):
+ with self.assertRaisesRegex(
+ bt2._IncompleteUserClass,
+ "cannot create component class 'MySource': message iterator class implements _user_can_seek_ns_from_origin but not _user_seek_ns_from_origin",
+ ):
+ self._can_seek_ns_from_origin_test(
+ None,
+ user_can_seek_ns_from_origin_ret_val=True,
+ user_seek_ns_from_origin_provided=False,
+ iter_can_seek_beginning=iter_can_seek_beginning,
+ iter_can_seek_forward=iter_can_seek_forward,
+ )
+