{
  "expression": [
    "format",
    "a",
    {},
    "b",
    {
      "font-scale": 2
    },
    "c",
    {
      "text-font": [
        "literal",
        [
          "a",
          "b"
        ]
      ]
    },
    "d",
    {
      "text-color": "rgb(0, 255, 0)"
    }
  ],
  "inputs": [
    [
      {},
      {}
    ]
  ],
  "expected": {
    "compiled": {
      "result": "success",
      "isFeatureConstant": true,
      "isZoomConstant": true,
      "type": "formatted"
    },
    "outputs": [
      {
        "sections": [
          {
            "text": "a",
            "image": null,
            "scale": null,
            "fontStack": null,
            "textColor": null
          },
          {
            "text": "b",
            "image": null,
            "scale": 2,
            "fontStack": null,
            "textColor": null
          },
          {
            "text": "c",
            "image": null,
            "scale": null,
            "fontStack": "a,b",
            "textColor": null
          },
          {
            "text": "d",
            "image": null,
            "scale": null,
            "fontStack": null,
            "textColor": {"r":0,"g":1,"b":0,"a":1}
          }
        ]
      }
    ],
    "serialized": [
      "format",
      "a",
      {},
      "b",
      {
        "font-scale": 2
      },
      "c",
      {
        "text-font": [
          "literal",
          [
            "a",
            "b"
          ]
        ]
      },
      "d",
      {
        "text-color": ["rgba", 0, 255, 0, 1]
      }
    ]
  }
}