如何在电视上引发TV4错误？

Question

The data schema below has an error in it and there is an object present for the test that fails validation. I can throw the error but there's no error message.

var tv4 = require('tv4')

var schema = {
 "items": {
   "type": "boolean"
 }
}

tv4.setErrorReporter(function (error, data, schema) {
  return "Custom error message"
})

var data1 = [true, false]
var data2 = [true, 123]

console.log(tv4.validate(data1, schema))
if (tv4.error) throw tv4.error
console.log(tv4.validate(data2, schema))
if (tv4.error) throw tv4.error

The message still has no error message.

Error
    at new ValidationError (/project/node_modules/tv4/tv4.js:1461:12)
    at ValidatorContext.createError (/project/node_modules/tv4/tv4.js:359:14)
    at ValidatorContext.validateType (/project/node_modules/tv4/tv4.js:751:14)
    at ValidatorContext.validateBasic (/project/node_modules/tv4/tv4.js:721:19)
    at ValidatorContext.validateAll (/project/node_modules/tv4/tv4.js:599:19)
    at ValidatorContext.validateArrayItems (/project/node_modules/tv4/tv4.js:947:21)
    at ValidatorContext.validateArray (/project/node_modules/tv4/tv4.js:880:11)
    at ValidatorContext.validateAll (/project/node_modules/tv4/tv4.js:602:11)
    at Object.api.validate (/project/node_modules/tv4/tv4.js:1573:24)
    at Object.<anonymous> (tv4-test.js:20:17)

How can I throw an invalid schema with a message?

Answer 1

Thank you this saved almost half of my lyf :), Thank you people and for others always use these 3 lines for schema test:

  console.log(" Schema Valid " +JSON.stringify(tv4.validate(jsonData ,schema)));
  console.log("Validation errors: "+ tv4.error);
  console.log(tv4.error.dataPath); 

and output will be like :

LOGGS

false
Validation errors: ValidationError: Invalid type: string (expected integer)
/guardVerificationUrl

In addition if you want to know what type of error use:

console.log(tv4.error.schemaPath); 

Output :

/properties/guardVerificationUrl/type