{
  "tests": [
    {
      "description": "set-merge: Delete with merge",
      "comment": "A Delete sentinel can appear with a merge option. If the delete\npaths are the only ones to be merged, then no document is sent, just an update mask.",
      "set": {
        "docRefPath": "projects/projectID/databases/(default)/documents/C/d",
        "option": {
          "fields": [
            {
              "field": [
                "b",
                "c"
              ]
            }
          ]
        },
        "jsonData": "{\"a\": 1, \"b\": {\"c\": \"Delete\"}}",
        "request": {
          "database": "projects/projectID/databases/(default)",
          "writes": [
            {
              "update": {
                "name": "projects/projectID/databases/(default)/documents/C/d"
              },
              "updateMask": {
                "fieldPaths": [
                  "b.c"
                ]
              }
            }
          ]
        }
      }
    }
  ]
}