bs-ajv/js-tests/object.js

BucklesScript bindings to Ajv (Another JSON Validator)

/* just an exercise to see what the interface to Ajv is like */
const Ajv = require('ajv');
const ajv = new Ajv({
  jsonPointers: true
, allErrors: true
});
const invalidData = { "messages": {
  "Dr. Beverly Crusher": "How are you feeling!",
  "Cpt. Jean-Luc Picard": "No children allowed on the bridge?",
  "Lt. Cmdr. Data": "I am an android!",
  "Act. Ens. Wesley Crusher": "Hi, I'm Wesley!"
}};
const invalidPropName = { "messages": {
  "Mr. Red Shirt": "Arrrgghh!",
  "Act. Ens. Wesley Crusher": ""
}};
const validData = { "messages": {
  "Dr. Beverly Crusher": "How are you feeling?",
  "Cpt. Jean-Luc Picard": "No children allowed on the bridge!",
  "Lt. Cmdr. Data": "I am an android.",
}};
const schema = {
  "title": "Message",
  "type": "object",
  "customKeyword": "foo",
  "properties": {
    "messages": {
      "type": "object",
      "maxProperties": 3,
      "minProperties": 1,
      "additionalProperties": false,
      "patternProperties": {
        "Dr\\. .*": {
          "type": "string",
          "pattern": "^.*\\?$"
        },
        "Cpt\\. .*": {
          "type": "string",
          "pattern": "^.*!$"
        },
        "Lt. Cmdr. .*": {
          "type": "string",
          "pattern": "^.*[\.?]$"
        },
        "Act. Ens. .*": {
          "type": "string",
          "pattern": "^$"
        }
      }
    }
  },
  "required": [
    "messages"
  ]
};

ajv.addKeyword("customKeyword", {
  type: "object",
  async: false,
  validate: () => {console.log('**** custom validator called ****'); return true}
});
const validate = ajv.compile(schema);

var valid = validate(validData);

console.log('\nvalid document');
console.log('valid=', valid);
if (!valid) {
  console.log('#errors=', validate.errors.length);
  console.log('errors=', validate.errors);
}

console.log('\ninvalid prop name');
valid = validate(invalidPropName);
console.log('valid=', valid);
if (!valid) {
  console.log('#errors=', validate.errors.length);
  console.log('errors=', validate.errors);
}

console.log('\ninvalid prop value and maxProperties violation');
valid = validate(invalidData);
console.log('valid=', valid);
if (!valid) {
  console.log('#errors=', validate.errors.length);
  console.log('errors=', validate.errors);
}