Example for Array Schema Not Possible

[jasonmcaffee]

Context

It is not possible to create an example for an array schema, as the value passed into the example function is concatenated with existing examples.

• node version: 4.0.0
• joi version: 7.2.3
• environment (node, browser): no
• used with (hapi, standalone, ...): standalone
• any other relevant information:

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

Trying to provide examples for a joi.array, so that schema.describe().examples will provide an array of arrays.
Describe your issue here, include schemas and inputs you are validating if needed.

const schema = Joi.array()
   .example(['a', 'b'])
   .example(['c', 'd'])

let examples = schema.describe().examples;
assert(examples.length == 2); //fails

Which result you had ?

examples.length is 1

What did you expect ?

examples.length is 2

Offending line of code:

https://github.com/hapijs/joi/blob/master/lib/any.js#L447

[ChopperLee2011]

i think the result for examples.length is 4 followed by your code. and i agree the expect is 2, even i never read the Joi._examples things back.

[jasonmcaffee]

Yeah, meant 4. thanks!