Fix and Extend a Python Module

MediumPython

Problem

Debug Python classes and objects to identify why tests failed, fix an existing function, and write a new function to make tests pass.

Asked in the Karat stage. Practical debugging session based on test failure signals.

I/O Contract

Implement failure_summary(cases). cases is a list of JSON objects with name, status, and message keys. Each status is passed, failed, or skipped. Return a dictionary containing failed test names and counts for all three statuses. The input must remain plain dictionaries, while the implementation should model each case as a Python object.

Constraints

cases contains zero or more dictionaries.
Each dictionary contains name and status; message may be empty.
name and message are strings.
status is one of passed, failed, or skipped.
Preserve the input order in the failed-name list.

Function Signature

def failure_summary(cases):

CodePython 3

Run your code to see test output here.