testParseThenSerialize @vuqs/core/testing

Checks the other direction: serialize(parse(serialized)) equals serialized (structurally).

Usage

import { codecs } from '@vuqs/core'
import { testParseThenSerialize } from '@vuqs/core/testing'
import { expect } from 'vitest'

expect(testParseThenSerialize(codecs.integer, '42')).toBe(true)
expect(() => testParseThenSerialize(codecs.integer, 'not-a-number')).toThrow()

Type

function testParseThenSerialize<T>(codec: Codec<T>, serialized: ParsedQueryValue): boolean

Parameters

• codec: Codec<T>
  • The codec under test.
• serialized: ParsedQueryValue
  • The codec's canonical raw form. A non-canonical input like '007' round-trips to '7' and is reported as a mismatch by design.

Return value

• valid: boolean
  • true when the round-trip succeeds. Throws if parse rejects the input, or if the re-serialized value differs.

Related guide

Testing.