Enumerations do not parse correctly

[rpgoldman]

When I ran the attached file through jsonschema2popo it did not produce any enumerations, even though there are several in the Schema.

Looks like perhaps the enum property is not correctly parsed out from the schema, since I get vacuous classes for enums.

[rpgoldman]

Here's that schema:

{
  "$id": "opentronsLabwareSchemaV2",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "definitions": {
    "positiveNumber": {
      "type": "number",
      "minimum": 0
    },
    "brandData": {
      "type": "object",
      "additionalProperties": false,
      "required": ["brand"],
      "properties": {
        "brand": {
          "type": "string",
          "description": "Brand/manufacturer name"
        },
        "brandId": {
          "type": "array",
          "description": "An array of manufacture numbers pertaining to a given labware",
          "items": {
            "type": "string"
          }
        },
        "links": {
          "type": "array",
          "description": "URLs for manufacturer page(s)",
          "items": {
            "type": "string"
          }
        }
      }
    },
    "displayCategory": {
      "type": "string",
      "enum": [
        "tipRack",
        "tubeRack",
        "reservoir",
        "trash",
        "wellPlate",
        "aluminumBlock",
        "other"
      ]
    },
    "safeString": {
      "description": "a string safe to use for loadName / namespace. Lowercase-only.",
      "type": "string",
      "pattern": "^[a-z0-9._]+$"
    }
  },
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schemaVersion",
    "version",
    "namespace",
    "metadata",
    "brand",
    "parameters",
    "cornerOffsetFromSlot",
    "ordering",
    "dimensions",
    "wells",
    "groups"
  ],
  "properties": {
    "schemaVersion": {
      "description": "Which schema version a labware is using",
      "type": "number",
      "enum": [2]
    },
    "version": {
      "description": "Version of the labware definition itself (eg myPlate v1/v2/v3). An incrementing integer",
      "type": "integer",
      "minimum": 1
    },
    "namespace": {
      "$ref": "#/definitions/safeString"
    },
    "metadata": {
      "type": "object",
      "description": "Properties used for search and display",
      "additionalProperties": false,
      "required": ["displayName", "displayCategory", "displayVolumeUnits"],
      "properties": {
        "displayName": {
          "description": "Easy to remember name of labware",
          "type": "string"
        },
        "displayCategory": {
          "$ref": "#/definitions/displayCategory",
          "description": "Label(s) used in UI to categorize labware"
        },
        "displayVolumeUnits": {
          "description": "Volume units for display",
          "type": "string",
          "enum": ["µL", "mL", "L"]
        },
        "tags": {
          "type": "array",
          "description": "List of descriptions for a given labware",
          "items": {
            "type": "string"
          }
        }
      }
    },
    "brand": {
      "$ref": "#/definitions/brandData",
      "description": "Real-world labware that the definition is modeled from and/or compatible with"
    },
    "parameters": {
      "type": "object",
      "description": "Internal describers used to determine pipette movement to labware",
      "additionalProperties": false,
      "required": [
        "format",
        "isTiprack",
        "loadName",
        "isMagneticModuleCompatible"
      ],
      "properties": {
        "format": {
          "description": "Property to determine compatibility with multichannel pipette",
          "type": "string",
          "enum": ["96Standard", "384Standard", "trough", "irregular", "trash"]
        },
        "quirks": {
          "description": "Property to classify a specific behavior this labware should have",
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "isTiprack": {
          "description": "Flag marking whether a labware is a tiprack or not",
          "type": "boolean"
        },
        "tipLength": {
          "description": "Required if labware is tiprack, specifies length of tip from drawing or as measured with calipers",
          "$ref": "#/definitions/positiveNumber"
        },
        "tipOverlap": {
          "description": "Required if labware is tiprack, specifies the length of the area of the tip that overlaps the nozzle of the pipette",
          "$ref": "#/definitions/positiveNumber"
        },
        "loadName": {
          "description": "Name used to reference a labware definition",
          "$ref": "#/definitions/safeString"
        },
        "isMagneticModuleCompatible": {
          "description": "Flag marking whether a labware is compatible by default with the Magnetic Module",
          "type": "boolean"
        },
        "magneticModuleEngageHeight": {
          "description": "Distance to move magnetic module magnets to engage",
          "$ref": "#/definitions/positiveNumber"
        }
      }
    },
    "ordering": {
      "type": "array",
      "description": "Generated array that keeps track of how wells should be ordered in a labware",
      "items": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "minItems": 1
      }
    },
    "cornerOffsetFromSlot": {
      "type": "object",
      "additionalProperties": false,
      "description": "Distance from left-front-bottom corner of slot to left-front-bottom corner of labware bounding box. Used for labware that spans multiple slots. For labware that does not span multiple slots, x/y/z should all be zero.",
      "required": ["x", "y", "z"],
      "properties": {
        "x": { "type": "number" },
        "y": { "type": "number" },
        "z": { "type": "number" }
      }
    },
    "dimensions": {
      "type": "object",
      "additionalProperties": false,
      "description": "Outer dimensions of a labware",
      "required": ["xDimension", "yDimension", "zDimension"],
      "properties": {
        "yDimension": {
          "$ref": "#/definitions/positiveNumber"
        },
        "zDimension": {
          "$ref": "#/definitions/positiveNumber"
        },
        "xDimension": {
          "$ref": "#/definitions/positiveNumber"
        }
      }
    },
    "wells": {
      "type": "object",
      "description": "Unordered object of well objects with position and dimensional information",
      "additionalProperties": false,
      "minProperties": 1,
      "patternProperties": {
        "[A-Z]+[0-9]+": {
          "type": "object",
          "additionalProperties": false,
          "required": ["depth", "shape", "totalLiquidVolume", "x", "y", "z"],
          "oneOf": [
            { "required": ["xDimension", "yDimension"] },
            { "required": ["diameter"] }
          ],
          "not": {
            "anyOf": [
              { "required": ["diameter", "xDimension"] },
              { "required": ["diameter", "yDimension"] }
            ]
          },
          "properties": {
            "depth": { "$ref": "#/definitions/positiveNumber" },
            "x": {
              "description": "x location of center-bottom of well in reference to left-front-bottom of labware",
              "$ref": "#/definitions/positiveNumber"
            },
            "y": {
              "description": "y location of center-bottom of well in reference to left-front-bottom of labware",
              "$ref": "#/definitions/positiveNumber"
            },
            "z": {
              "description": "z location of center-bottom of well in reference to left-front-bottom of labware",
              "$ref": "#/definitions/positiveNumber"
            },
            "totalLiquidVolume": {
              "description": "Total well, tube, or tip volume in microliters",
              "$ref": "#/definitions/positiveNumber"
            },
            "xDimension": {
              "description": "x dimension of rectangular wells",
              "$ref": "#/definitions/positiveNumber"
            },
            "yDimension": {
              "description": "y dimension of rectangular wells",
              "$ref": "#/definitions/positiveNumber"
            },
            "diameter": {
              "description": "diameter of circular wells",
              "$ref": "#/definitions/positiveNumber"
            },
            "shape": {
              "description": "If 'rectangular', use xDimension and yDimension; if 'circular' use diameter",
              "type": "string",
              "enum": ["rectangular", "circular"]
            }
          }
        }
      }
    },
    "groups": {
      "type": "array",
      "description": "Logical well groupings for metadata/display purposes; changes in groups do not affect protocol execution",
      "items": {
        "type": "object",
        "required": ["wells", "metadata"],
        "additionalProperties": false,
        "properties": {
          "wells": {
            "type": "array",
            "description": "An array of wells that contain the same metadata",
            "items": {
              "type": "string"
            },
            "minItems": 1
          },
          "metadata": {
            "type": "object",
            "description": "Metadata specific to a grid of wells in a labware",
            "required": [],
            "additionalProperties": false,
            "properties": {
              "displayName": {
                "type": "string",
                "description": "User-readable name for the well group"
              },
              "displayCategory": {
                "$ref": "#/definitions/displayCategory",
                "description": "Label(s) used in UI to categorize well groups"
              },
              "wellBottomShape": {
                "type": "string",
                "description": "Bottom shape of the well for UI purposes",
                "enum": ["flat", "u", "v"]
              }
            }
          },
          "brand": {
            "$ref": "#/definitions/brandData",
            "description": "Brand data for the well group (e.g. for tubes)"
          }
        }
      }
    }
  }
}