Let's say I have a class like this.
class SomeProductionProcess(CustomCachedSingleTon):
@def loaddata(): """ Uses an iterator over a large file in Production for the Data pipeline. """
Now at test time I want to change the logic inside the loaddata() method. It would be a simple custom logic that doesn't process large data.
How do we supply custom implementation of loaddata() at testtime using Python Mock UnitTest framework?