import { describe, expect, it } from 'vitest';
import { compose, decompose, particle, romanize } from './hangul';

describe('hangul', () => {
	it('composes and decomposes syllables', () => {
		expect(decompose('한')).toEqual({ initial: 'ㅎ', medial: 'ㅏ', final: 'ㄴ' });
		expect(compose({ initial: 'ㄱ', medial: 'ㅡ', final: 'ㄹ' })).toBe('글');
	});

	it.each([
		['안녕하세요', 'annyeonghaseyo'],
		['감사합니다', 'gamsahamnida'],
		['한국어', 'hangugeo'],
		['맛있어요', 'masisseoyo'],
		['읽어요', 'ilgeoyo'],
		['많이', 'mani'],
		['괜찮아요', 'gwaenchanayo'],
		['없어요', 'eopseoyo'],
		['같이', 'gachi'],
		['좋다', 'jota'],
		['신라', 'silla'],
		['설날', 'seollal'],
		['종로', 'jongno'],
		['라면', 'ramyeon'],
		['서울 사람', 'seoul saram'],
		['의사', 'uisa']
	])('romanizes %s as %s', (hangul, roman) => {
		expect(romanize(hangul)).toBe(roman);
	});

	it('chooses particles by the final consonant', () => {
		expect(particle('책', 'object')).toBe('책을');
		expect(particle('사과', 'object')).toBe('사과를');
		expect(particle('학생', 'topic')).toBe('학생은');
		expect(particle('저', 'topic')).toBe('저는');
		expect(particle('서울', 'direction')).toBe('서울로');
		expect(particle('집', 'direction')).toBe('집으로');
		expect(particle('의사', 'copula')).toBe('의사예요');
	});
});