Joi: rounded numbers

[jney]

Context

• _node version_: 4.4.3
• _joi version_: 9.0.0
• _environment_ (node, browser): node
• _used with_ (hapi, standalone, ...): hapi
  

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

const schema = Joi.number().precision(4).min(0).max(1)
schema.validate(0.9999)
// { error: null, value: 0.9999 }
schema.validate(0.9999999)
// { error: null, value: 1 }
schema.validate(3)
// { error:
//    { [ValidationError: "value" must be less than or equal to 1]
//      isJoi: true,
//      name: 'ValidationError',
//      details: [ [Object] ],
//      _object: 3,
//      annotate: [Function] },
//   value: 3 }

What did you expect ?

I expected schema.validate(0.9999999) to return an error, not to change my value to 1

[Marsup]

Indeed that's a lack in documentation, you need strict mode (or convert: false) to disable that behavior.

[jney]

Joi.number().precision(4).strict().min(0).max(1) does the job. thank you