1data: 2 - {_id: 1, x: 'ping'} 3minServerVersion: '3.4' 4 5tests: 6 - 7 description: "Aggregate with collation" 8 operation: 9 name: aggregate 10 arguments: 11 pipeline: 12 - $match: 13 x: 'PING' 14 collation: { locale: 'en_US', strength: 2 } # https://docs.mongodb.com/master/reference/collation/#collation-document 15 outcome: 16 result: 17 - {_id: 1, x: 'ping'} 18