Pattern Regex are ignored

[ntregillus]

https://github.com/tdegrunt/jsonschema/blob/b49eefa200ce0b8146f00ee8dc6153580573de19/examples/all.js#L59

I have been attempting to test a json schema's string property, but the Validator.Validate seems to ignore my type definitions "pattern" value entirely: https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.6.3.3

{
  "type: "object",
  "properties": {
    "singleField": {
      "type": "string",
      "pattern": /^$/
    }
  }
}

when I run this through validate

{
  "singleField": "thisShouldBeEmpty"
}

I am expecting an error, but the errors array of the result is empty. below is the code i would run:

var result = Validator.validate(testObj, schema);
console.log("results.errors should be 1, instead its", result.errors.length);

[awwright]

@ntregillus You should specify the regular expression as a string — the schema object should be compatible with a JSON Schema document parsed with JSON.parse.

Maybe as a future extension this should support a RegExp instance—or at the very least, it should error out if the value is an unexpected type.

[ntregillus]

I tried both as a regular expression, and a string wrapper (like below):

{
  "type": "object",
  "properties": {
    "singleField": {
      "type": "string",
      "pattern": "^$"
    }
  }
}

however it still does not work. I did notice though if my type was in an array definition, it was correctly validating my regex statement. It just appears the verification on an object property does not work.

[awwright]

@ntregillus Can you provide a minimal test case? I cannot reproduce this.

var schema = {
  "type": "object",
  "properties": {
    "singleField": {
      "type": "string",
      "pattern": "^$"
    }
  }
};
// returns: instance.singleField does not match pattern "^$"
console.log(jsonschema.validate({singleField:"x"}, schema).errors.toString());

[awwright]

I'm going to close this since this appears to have the correct behavior. Please try the latest release, 1.2.7, and open a new issue if you encounter any further problems.