test.js

 let inputErrors = []
      if (this.schema.validator) {
        inputErrors = inputErrors.concat(
          ...validator(this.schema.validator)
            .map(validator => {
              return validator.validate(
                this.value,
                this.schema,
                this.model,
                validator.message
              )
            })
            .filter(val => {
              return val
            })
        )
      }