def process_instance ( self , instance ) : self . log . debug ( "e = mc^2" ) self . log . info ( "About to fail.." ) self . log . warning ( "Failing.. soooon.." ) self . log . critical ( "Ok, you're done." ) assert False , """ValidateFailureMock was destined to fail..

Here's some extended information about what went wrong.

It has quite the long string associated with it, including
a few newlines and a list.

- Item 1
- Item 2

"""
how to add assertion error in python
def process_instance(self, instance):
        self.log.debug("e = mc^2")
        self.log.info("About to fail..")
        self.log.warning("Failing.. soooon..")
        self.log.critical("Ok, you're done.")
        assert False, """ValidateFailureMock was destined to fail..

Here's some extended information about what went wrong.

It has quite the long string associated with it, including
a few newlines and a list.

- Item 1
- Item 2

"""