task_id: CR5_test_coverage
domain: testing
network: false
time_limit_sec: 900
seeds: [0, 1, 2]
difficulty: medium
languages: [python]
tags: [test-coverage, tni-pattern-a, mutation-testing, error-handling, edge-cases]
workspace_file_count: 4
lines_changed_expected: 60
parameterized: true