Why This Matters

app/output.py controls progress spinners, output-format selection, and humanized messages, but it has no direct test module.

Read First

• app/output.py

Scope

1. Add a dedicated test module for pure helpers and tracker behavior.
2. Prefer testing helper outputs over brittle terminal snapshots.
3. Keep the tests deterministic by patching time and TTY checks.

Tests / Coverage

• tests/test_output.py
• cover get_output_format()
• cover _humanise_message()
• cover _fmt_timing()
• cover ProgressTracker.start() and complete() in text mode

Acceptance Criteria

• the module has direct unit coverage
• tests do not require a real TTY
• progress text remains stable across refactors