{
  "_comment": [
    "Inputs only. Expectations are measured -- see record.js.",
    "`$mul`, `$min` and `$max`. The two comparison operators are not numeric",
    "at all -- they compare in BSON canonical order, which is why a string",
    "field and a number operand have a defined answer -- and the cases here",
    "are shaped to say which of the three rules each one follows."
  ],
  "documents": [{ "_id": 1, "a": 5, "s": "b", "d": 2.5 }],
  "cases": [
    {
      "description": "$mul multiplies an int by an int",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "a": 2 } } }
    },
    {
      "description": "$mul of a missing field",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "gone": 5 } } }
    },
    {
      "description": "$mul mixes int and double",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "d": 2 } } }
    },
    {
      "description": "$mul by zero",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "a": 0 } } }
    },
    {
      "description": "$mul overflowing an int32",
      "documents": [{ "_id": 1, "a": 2000000000 }],
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "a": 2 } } }
    },
    {
      "description": "$mul of a non-numeric field",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "s": 2 } } }
    },
    {
      "description": "$mul by a non-numeric operand",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "a": "x" } } }
    },
    {
      "description": "$mul down a dotted path",
      "documents": [{ "_id": 1, "n": { "a": 3 } }],
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "n.a": 4 } } }
    },
    {
      "description": "$min writes when the operand is lower",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "a": 3 } } }
    },
    {
      "description": "$min leaves the field when the operand is higher",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "a": 7 } } }
    },
    {
      "description": "$min of a missing field always writes",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "gone": 7 } } }
    },
    {
      "description": "$min against a field of another type",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "s": 5 } } }
    },
    {
      "description": "$min compares an int and an equal double",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "a": 5.0 } } }
    },
    {
      "description": "$max writes when the operand is higher",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$max": { "a": 7 } } }
    },
    {
      "description": "$max leaves the field when the operand is lower",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$max": { "a": 3 } } }
    },
    {
      "description": "$max of a missing field always writes",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$max": { "gone": 7 } } }
    },
    {
      "description": "$max against a field of another type",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$max": { "s": 5 } } }
    },
    {
      "description": "$max against a null field",
      "documents": [{ "_id": 1, "a": null }],
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$max": { "a": 1 } } }
    },
    {
      "description": "$min and $max on the same field in one update",
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "a": 3 }, "$max": { "a": 9 } } }
    },
    {
      "description": "$min through an array index",
      "documents": [{ "_id": 1, "t": [5, 5] }],
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$min": { "t.0": 1 } } }
    },
    {
      "description": "$mul through a positional segment",
      "documents": [{ "_id": 1, "t": [{ "a": 2 }, { "a": 3 }] }],
      "operation": "updateOne",
      "arguments": { "filter": {}, "update": { "$mul": { "t.$[].a": 10 } } }
    }
  ]
}