{ "tests": [ { "description": "Default", "valid": true, "writeConcern": {}, "writeConcernDocument": {}, "isServerDefault": true, "isAcknowledged": true }, { "description": "W as a number", "valid": true, "writeConcern": { "w": 3 }, "writeConcernDocument": { "w": 3 }, "isServerDefault": false, "isAcknowledged": true }, { "description": "W as an invalid number", "valid": false, "writeConcern": { "w": -3 }, "writeConcernDocument": null, "isServerDefault": null, "isAcknowledged": null }, { "description": "W as majority", "valid": true, "writeConcern": { "w": "majority" }, "writeConcernDocument": { "w": "majority" }, "isServerDefault": false, "isAcknowledged": true }, { "description": "W as a custom string", "valid": true, "writeConcern": { "w": "my_mode" }, "writeConcernDocument": { "w": "my_mode" }, "isServerDefault": false, "isAcknowledged": true }, { "description": "WTimeoutMS", "valid": true, "writeConcern": { "wtimeoutMS": 1000 }, "writeConcernDocument": { "wtimeout": 1000 }, "isServerDefault": false, "isAcknowledged": true }, { "description": "WTimeoutMS as an invalid number", "valid": false, "writeConcern": { "wtimeoutMS": -1000 }, "writeConcernDocument": null, "isServerDefault": null, "isAcknowledged": null }, { "description": "Journal as true", "valid": true, "writeConcern": { "journal": true }, "writeConcernDocument": { "j": true }, "isServerDefault": false, "isAcknowledged": true }, { "description": "Journal as false", "valid": true, "writeConcern": { "journal": false }, "writeConcernDocument": { "j": false }, "isServerDefault": false, "isAcknowledged": true }, { "description": "Unacknowledged with only w", "valid": true, "writeConcern": { "w": 0 }, "writeConcernDocument": { "w": 0 }, "isServerDefault": false, "isAcknowledged": false }, { "description": "Unacknowledged with wtimeoutMS", "valid": true, "writeConcern": { "w": 0, "wtimeoutMS": 500 }, "writeConcernDocument": { "w": 0, "wtimeout": 500 }, "isServerDefault": false, "isAcknowledged": false }, { "description": "Unacknowledged with journal", "valid": true, "writeConcern": { "w": 0, "journal": false }, "writeConcernDocument": { "w": 0, "j": false }, "isServerDefault": false, "isAcknowledged": false }, { "description": "W is 0 with journal true", "valid": false, "writeConcern": { "w": 0, "journal": true }, "writeConcernDocument": { "w": 0, "j": true }, "isServerDefault": false, "isAcknowledged": true }, { "description": "Everything", "valid": true, "writeConcern": { "w": 3, "wtimeoutMS": 1000, "journal": true }, "writeConcernDocument": { "w": 3, "wtimeout": 1000, "j": true }, "isServerDefault": false, "isAcknowledged": true } ] }