import { doMatchPatternFn } from '..'
import { describe, it, expect } from 'vitest'

describe('doMatchPatternFn', () => {
	it('should return true if the value is empty', () => {
		const rule = doMatchPatternFn(/^[A-Z]+$/)

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

	it('should return true if the value matches the pattern', () => {
		const rule = doMatchPatternFn(/^[A-Z]+$/)

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

	it('should return an error if the value does not match the pattern', () => {
		const rule = doMatchPatternFn(/^[A-Z]+$/)

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

	it('should return a custom error message if the validation fails', () => {
		const rule = doMatchPatternFn(/^[A-Z]+$/, {
			default: 'test',
		})

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

	it('should not return a custom error message if the validation fails', () => {
		const rule = doMatchPatternFn(/^[A-Z]+$/, {
			default: 'test',
		})

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