logging: Added tests for _logRecordClass changes.

Lib/logging/__init__.py

@@ -973,6 +973,7 @@ class Manager(object):
         self.emittedNoHandlerWarning = 0
         self.loggerDict = {}
         self.loggerClass = None
+        self.logRecordClass = None
 
     def getLogger(self, name):
         """
@@ -1016,6 +1017,13 @@ class Manager(object):
                                 + klass.__name__)
         self.loggerClass = klass
 
+    def setLogRecordClass(self, cls):
+        """
+        Set the class to be used when instantiating a log record with this
+        Manager.
+        """
+        self.logRecordClass = cls
+
     def _fixupParents(self, alogger):
         """
         Ensure that there are either loggers or placeholders all the way