{
  "$schema": "https://raw.githubusercontent.com/unicode-org/message-format-wg/main/test/schemas/v0/tests.schema.json",
  "scenario": "Fallback",
  "description": "Test cases for fallback behaviour.",
  "defaultTestProperties": {
    "bidiIsolation": "none",
    "locale": "en-US",
    "expErrors": true
  },
  "tests": [
    {
      "description": "function with unquoted literal operand",
      "src": "{42 :test:function fails=format}",
      "exp": "{|42|}"
    },
    {
      "description": "function with quoted literal operand",
      "src": "{|C:\\\\| :test:function fails=format}",
      "exp": "{|C:\\\\|}"
    },
    {
      "description": "unannotated implicit input variable",
      "src": "{$var}",
      "exp": "{$var}"
    },
    {
      "description": "annotated implicit input variable",
      "src": "{$var :number}",
      "exp": "{$var}"
    },
    {
      "description": "local variable with unknown function in declaration",
      "src": ".local $var = {|val| :test:undefined} {{{$var}}}",
      "exp": "{$var}"
    },
    {
      "description": "function with local variable operand with unknown function in declaration",
      "src": ".local $var = {|val| :test:undefined} {{{$var :test:function}}}",
      "exp": "{$var}"
    },
    {
      "description": "local variable with unknown function in placeholder",
      "src": ".local $var = {|val|} {{{$var :test:undefined}}}",
      "exp": "{$var}"
    },
    {
      "description": "function with no operand",
      "src": "{:test:undefined}",
      "exp": "{:test:undefined}"
    }
  ]
}