MapLibreParticleLab/metrics/integration/expression-tests/format/data-driven-scale/test.json

{
  "expression": [
    "format",
    "a",
    {
      "text-font": ["array", ["string", ["get", "text-font"]]]
    }
  ],
  "inputs": [
    [{}, {"properties": {"text-font": "test"}}]
  ],
  "expected": {
    "compiled": {
      "result": "error",
      "errors": [
       {
         "error": "Expected array<string> but found array instead.",
         "key": "[1]"
       }
     ]
    }
  }
}