[
  {
    "id": "$regexMatch baseline",
    "operator": "$regexMatch",
    "kind": "baseline",
    "operand": "all",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab"
      }
    },
    "input": {},
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: null",
    "operator": "$regexMatch",
    "kind": "null",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": null
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: missing",
    "operator": "$regexMatch",
    "kind": "missing",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {},
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: zero",
    "operator": "$regexMatch",
    "kind": "zero",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": 0
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: negative",
    "operator": "$regexMatch",
    "kind": "negative",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": -2
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: decimal",
    "operator": "$regexMatch",
    "kind": "decimal",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": 2.5
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: numeric string",
    "operator": "$regexMatch",
    "kind": "numeric string",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": "12"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: text",
    "operator": "$regexMatch",
    "kind": "text",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": "hello"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: empty string",
    "operator": "$regexMatch",
    "kind": "empty string",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": ""
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch input: boolean",
    "operator": "$regexMatch",
    "kind": "boolean",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": true
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: false",
    "operator": "$regexMatch",
    "kind": "false",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": false
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: typed date",
    "operator": "$regexMatch",
    "kind": "typed date",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": {
        "$date": "2026-01-15T15:00:00Z"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: decimal128",
    "operator": "$regexMatch",
    "kind": "decimal128",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": {
        "$numberDecimal": "1.25"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: empty array",
    "operator": "$regexMatch",
    "kind": "empty array",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": []
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: numeric array",
    "operator": "$regexMatch",
    "kind": "numeric array",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": [
        1,
        2,
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: mixed array",
    "operator": "$regexMatch",
    "kind": "mixed array",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": [
        1,
        null,
        "x",
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: nested array",
    "operator": "$regexMatch",
    "kind": "nested array",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": [
        [
          1,
          2
        ],
        [
          3
        ]
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: empty object",
    "operator": "$regexMatch",
    "kind": "empty object",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": {}
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: object",
    "operator": "$regexMatch",
    "kind": "object",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": {
        "x": 1
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch input must be a string"
    }
  },
  {
    "id": "$regexMatch input: ISO date string",
    "operator": "$regexMatch",
    "kind": "ISO date string",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "input": "$probe",
        "regex": "ab"
      }
    },
    "input": {
      "probe": "2026-01-15T15:00:00Z"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: null",
    "operator": "$regexMatch",
    "kind": "null",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": null
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: missing",
    "operator": "$regexMatch",
    "kind": "missing",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {},
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: zero",
    "operator": "$regexMatch",
    "kind": "zero",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": 0
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: negative",
    "operator": "$regexMatch",
    "kind": "negative",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": -2
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: decimal",
    "operator": "$regexMatch",
    "kind": "decimal",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": 2.5
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: numeric string",
    "operator": "$regexMatch",
    "kind": "numeric string",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": "12"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: text",
    "operator": "$regexMatch",
    "kind": "text",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": "hello"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: empty string",
    "operator": "$regexMatch",
    "kind": "empty string",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": ""
    },
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch regex: boolean",
    "operator": "$regexMatch",
    "kind": "boolean",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": true
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: false",
    "operator": "$regexMatch",
    "kind": "false",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": false
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: typed date",
    "operator": "$regexMatch",
    "kind": "typed date",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": {
        "$date": "2026-01-15T15:00:00Z"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: decimal128",
    "operator": "$regexMatch",
    "kind": "decimal128",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": {
        "$numberDecimal": "1.25"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: empty array",
    "operator": "$regexMatch",
    "kind": "empty array",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": []
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: numeric array",
    "operator": "$regexMatch",
    "kind": "numeric array",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": [
        1,
        2,
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: mixed array",
    "operator": "$regexMatch",
    "kind": "mixed array",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": [
        1,
        null,
        "x",
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: nested array",
    "operator": "$regexMatch",
    "kind": "nested array",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": [
        [
          1,
          2
        ],
        [
          3
        ]
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: empty object",
    "operator": "$regexMatch",
    "kind": "empty object",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": {}
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: object",
    "operator": "$regexMatch",
    "kind": "object",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": {
        "x": 1
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch regex must be a string or BSON regex"
    }
  },
  {
    "id": "$regexMatch regex: ISO date string",
    "operator": "$regexMatch",
    "kind": "ISO date string",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "$probe"
      }
    },
    "input": {
      "probe": "2026-01-15T15:00:00Z"
    },
    "srotax": {
      "bson": "{\"v\": false}",
      "present": true
    }
  },
  {
    "id": "$regexMatch options: null",
    "operator": "$regexMatch",
    "kind": "null",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": null
    },
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch options: missing",
    "operator": "$regexMatch",
    "kind": "missing",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {},
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch options: zero",
    "operator": "$regexMatch",
    "kind": "zero",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": 0
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: negative",
    "operator": "$regexMatch",
    "kind": "negative",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": -2
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: decimal",
    "operator": "$regexMatch",
    "kind": "decimal",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": 2.5
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: numeric string",
    "operator": "$regexMatch",
    "kind": "numeric string",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": "12"
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "Unsupported regex option: 1"
    }
  },
  {
    "id": "$regexMatch options: text",
    "operator": "$regexMatch",
    "kind": "text",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": "hello"
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "Unsupported regex option: h"
    }
  },
  {
    "id": "$regexMatch options: empty string",
    "operator": "$regexMatch",
    "kind": "empty string",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": ""
    },
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch options: boolean",
    "operator": "$regexMatch",
    "kind": "boolean",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": true
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: false",
    "operator": "$regexMatch",
    "kind": "false",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": false
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: typed date",
    "operator": "$regexMatch",
    "kind": "typed date",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": {
        "$date": "2026-01-15T15:00:00Z"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: decimal128",
    "operator": "$regexMatch",
    "kind": "decimal128",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": {
        "$numberDecimal": "1.25"
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: empty array",
    "operator": "$regexMatch",
    "kind": "empty array",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": []
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: numeric array",
    "operator": "$regexMatch",
    "kind": "numeric array",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": [
        1,
        2,
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: mixed array",
    "operator": "$regexMatch",
    "kind": "mixed array",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": [
        1,
        null,
        "x",
        3
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: nested array",
    "operator": "$regexMatch",
    "kind": "nested array",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": [
        [
          1,
          2
        ],
        [
          3
        ]
      ]
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: empty object",
    "operator": "$regexMatch",
    "kind": "empty object",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": {}
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: object",
    "operator": "$regexMatch",
    "kind": "object",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": {
        "x": 1
      }
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch options must be a string"
    }
  },
  {
    "id": "$regexMatch options: ISO date string",
    "operator": "$regexMatch",
    "kind": "ISO date string",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab",
        "options": "$probe"
      }
    },
    "input": {
      "probe": "2026-01-15T15:00:00Z"
    },
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "Unsupported regex option: 2"
    }
  },
  {
    "id": "$regexMatch omit input",
    "operator": "$regexMatch",
    "kind": "omitted named argument",
    "operand": "input",
    "expression": {
      "$regexMatch": {
        "regex": "ab"
      }
    },
    "input": {},
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch requires input, regex and optional options"
    }
  },
  {
    "id": "$regexMatch omit regex",
    "operator": "$regexMatch",
    "kind": "omitted named argument",
    "operand": "regex",
    "expression": {
      "$regexMatch": {
        "input": "abc"
      }
    },
    "input": {},
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch requires input, regex and optional options"
    }
  },
  {
    "id": "$regexMatch omit options",
    "operator": "$regexMatch",
    "kind": "omitted named argument",
    "operand": "options",
    "expression": {
      "$regexMatch": {
        "input": "abc",
        "regex": "ab"
      }
    },
    "input": {},
    "srotax": {
      "bson": "{\"v\": true}",
      "present": true
    }
  },
  {
    "id": "$regexMatch empty arguments",
    "operator": "$regexMatch",
    "kind": "empty arguments",
    "operand": "all",
    "expression": {
      "$regexMatch": []
    },
    "input": {},
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch requires input, regex and optional options"
    }
  },
  {
    "id": "$regexMatch unknown option",
    "operator": "$regexMatch",
    "kind": "unknown option",
    "operand": "all",
    "expression": {
      "$regexMatch": {
        "unexpected": 1
      }
    },
    "input": {},
    "srotax": {
      "error": "IllegalArgumentException",
      "message": "$regexMatch requires input, regex and optional options"
    }
  },
  {
    "id": "mongodb-9-boundary-cases.json:8",
    "operator": "$regexMatch",
    "kind": "boundary example",
    "operand": "all",
    "expression": {
      "$regexMatch": {
        "input": "a",
        "regex": "["
      }
    },
    "input": {},
    "srotax": {
      "error": "PatternSyntaxException",
      "message": "Unclosed character class near index 0\n[\n^"
    }
  }
]