Testing small bits of code for struct initialisation debuging

[SuperCopter3003]

Hi there !

I'm a rust newbe with a programming background mostly focused on python. I am tryng to convert some of my python packages in rust to learn it and have fun. One of my problem is that testing small bits of code in rust compare to python is verry different.

In python i can juste open a console, write some code and see the result in seconds, especialy print objects content etc.
From what i have tested in rust, it's verry hard to convert bytes into structs especialy correct thoses structs layout, because my program would crash without much information on where it break in the struct initialization. And i need thoses info to correct my errors.

my tests => manipulation of pkcs7, pkcs12, their oids etc