Automating a Repetitive Task | Dataford Interview Questions

BetMGM QA engineers may repeatedly review smoke-test results to determine which checks fail most often. Write a function that automates this summary by counting failed executions for each test name.

Formal Specification

Implement summarize_failures(results), where results is a list of dictionaries. Each dictionary contains:

test: a non-empty string identifying a BetMGM test case
status: either "passed" or "failed"

Return a dictionary mapping each test name that failed at least once to its number of failed executions. Ignore passing results. Preserve the order in which test names first appear in the output. If no test failed, return an empty dictionary.

Constraints

1 <= len(results) <= 10^5
Each result contains a non-empty test name and a valid status
Test names contain up to 100 characters
Each status is either "passed" or "failed"
Test names may appear in multiple results

Function Signature

def summarize_failures(results):

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