import { describe, it, expect } from 'vitest'
import { isExactLengthFn } from '../'

describe('exactLength', () => {
	it('returns an error when the value is longer than the exact length', () => {
		const rule = isExactLengthFn(2)

		expect(typeof rule('0 1')).toBe('string')
	})

	it('returns an error when the value is smaller than the exact length', () => {
		const rule = isExactLengthFn(2)

		expect(typeof rule('s')).toBe('string')
	})

	it('returns true when the value is the exact length without counting spaces', () => {
		const rule = isExactLengthFn(2, true)

		expect(rule('x x')).toBe(true)
	})

	it('returns true when the value is equal than the exact length', () => {
		const rule = isExactLengthFn(2)

		expect(rule('01')).toBe(true)
	})

	it('returns true if the value is empty', () => {
		const rule = isExactLengthFn(10)

		expect(rule('')).toBe(true)
	})

	it('returns true if the value is null', () => {
		const rule = isExactLengthFn(10)

		expect(rule(null)).toBe(true)
	})

	it('works with custom error messages', () => {
		const rule = isExactLengthFn(1, false, {
			default: 'test',
		})

		expect(rule('01')).toBe('test')
	})
})