fresh: ACCEPT 2000.00 USD
age 300s: ACCEPT 2000.00 USD
age 301s: REJECT stale price
no update: REJECT invalid timestamp
future: REJECT invalid timestamp
zero: REJECT non-positive price
negative: REJECT non-positive price
6 decimals: ACCEPT 2000.00 USD
bad decimals: REJECT unsupported decimals
wrong pair: REJECT wrong pair
huge price: REJECT price outside application bounds
plausible wrong: ACCEPT 1800.00 USD
Assertions: PASS (12 cases)