# OpenStack

# Utils Usage

## The misc module

`tempest_lib.common.utils.misc.``find_test_caller`()

  Find the caller class and test name.

  Because we know that the interesting things that call us are test_* methods, and various kinds of setUp / tearDown, we can look through the call stack to find appropriate methods, and the class we were in when those were called.

`tempest_lib.common.utils.misc.``singleton`(cls)

  Simple wrapper for classes that should only have a single instance.