TypeScript: oneOf should accept readonly array

Describe the bug

When handing in a readonly array to yup.mixed().oneOf, there is a TypeScript error:

The type ‘readonly ["pass", "fail", "any"]’ is ‘readonly’ and cannot be assigned to the mutable type any[]

To Reproduce

const validOptions = ["pass", "fail", "any"] as const

const schema = yup.mixed().oneOf(validOptions)

Expected behavior

The type should be adjusted to readonly any[] in order to indicate that the array doesn’t have to be mutable.

Platform (please complete the following information):

• TypeScript 3.9.5
• Yup 0.32.9

Additional context

I have not tested this with TypeScript 4.

[jackokerman]

You can also do:

const validOptions = ["pass", "fail", "any"] as const;

const schema = yup.mixed().oneOf([...validOptions]);

(so you don’t need to define the values twice)

[secure12]

What is this closed? I’m on 0.32.11 and still facing this issue.