import assert from 'node:assert'
import { curry } from '../src/fn.js'
import { parse } from 'node:path'

const isOk = curry((fn, result) => {
    assert.doesNotThrow(() => {
        const [[actual]] = result.unwrap()
        fn(actual)
    })
})

const isErr = (result, error, msg) => {
    if (error == null) {
        assert(result.isErr())
    } else {
        assert.throws(result.unwrap(), error, msg)
    }
}

export default {
    ...assert,
    parseOk: curry((parser, input, fn) => {
        isOk(fn, parse(parser, input))
    }),
    parseErr: (parser, input, error, message) => {
        isErr(parse(parser, input), error, message)
    },
    isOk,
    isErr
}