mongo-python-driver/test/read_write_concern/document/read-concern.json

{
  "tests": [
    {
      "description": "Default",
      "valid": true,
      "readConcern": {},
      "readConcernDocument": {},
      "isServerDefault": true
    },
    {
      "description": "Majority",
      "valid": true,
      "readConcern": {
        "level": "majority"
      },
      "readConcernDocument": {
        "level": "majority"
      },
      "isServerDefault": false
    },
    {
      "description": "Local",
      "valid": true,
      "readConcern": {
        "level": "local"
      },
      "readConcernDocument": {
        "level": "local"
      },
      "isServerDefault": false
    }
  ]
}