Joi.string() +.when() + .warning()

[siavashg87]

Support plan

• is this issue currently blocking your project? (yes/no): yes
• is this issue affecting a production system? (yes/no): yes

Context

• node version: 14.16.0
• module version with issue: 17.14.0
• last module version without issue: -
• environment (e.g. node, browser, native): node
• used with (e.g. hapi application, another framework, standalone, ...): standalone
• any other relevant information: -

What are you trying to achieve or the steps to reproduce?

The combination of Joi.string() + when + warning does not work, where it works with other types (only tested with any & number).

{
  const joiSchema = Joi.object({
    prop1: Joi.string().required(),
    prop2: Joi.string().when("prop1", {is: "warn", then: Joi.any().warning("Test warning", {})})
  });

  const {warning} = joiSchema.validate({prop1: "warn"});
  console.log(warning); // undefined
}


{
  const joiSchema = Joi.object({
    prop1: Joi.number().required(),
    prop2: Joi.string().when("prop1", {is: 1, then: Joi.any().warning("Test warning", {})})
  });

  const {warning} = joiSchema.validate({prop1: 1, prop2: "str"});

  console.log(warning); // generates warning as expected
}

What was the result you got?

See above

What result did you expect?

See above