Deduplicate Automated Test Results

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Your question is Deduplicate Automated Test Results. Start with the requirements on the right.

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Problem

Given a list of test execution records, return the final unique failures after deduplication. Each record is a dictionary with keys test_id, status, timestamp, and message. Keep only records where status == "FAIL", and if the same test_id appears multiple times as a failure, keep only the most recent one by timestamp. Return the result sorted by ascending test_id.

Constraints

1 <= len(records) <= 10^5
records[i] contains keys: test_id, status, timestamp, message
test_id and status are strings
0 <= timestamp <= 10^9
status is one of "PASS", "FAIL", "SKIP"

Function Signature

def deduplicate_failures(records):

Your solutionPython 3

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