1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374
import { assertStrictEq, assertEquals, prepareTest } from "../test.mod.ts";
import { normalize } from "./mod.ts";
async function willSkipNormalizationForEmptyCharacter() {  assertStrictEq(await normalize(""), "");}
async function willNormalizeAccentedCharacters() {  const strs = [    "Åland Islands",    "Saint Barthélemy",    "Cocos (Keeling) Islands",    "Côte d'Ivoire",    "Curaçao",    "Réunion"  ];
  assertEquals(await Promise.all(strs.map(async n => normalize(n))), [    "Aland Islands",    "Saint Barthelemy",    "Cocos (Keeling) Islands",    "Cote d'Ivoire",    "Curacao",    "Reunion"  ]);}
async function willNormalizeAccentedCharactersWithoutUsingNativeFunction() {  const cachedFn = String.prototype.normalize;  String.prototype.normalize = null!;
  try {    assertStrictEq(await normalize("Réunion"), "Reunion");  } catch (e) {    throw e;  } finally {    String.prototype.normalize = cachedFn;  }}
async function willReturnOriginalCharacterWhenNoMatchFound() {  assertStrictEq(await normalize("2 ÷ 2 = 1"), "2 ÷ 2 = 1");}
async function willNormalizeSingleCharacter() {  assertStrictEq(await normalize("ô"), "o");}
async function willNormalizeNonAccentedCharacter() {  assertStrictEq(await normalize("tromsø"), "tromso");  assertStrictEq(await normalize("\u00d8"), "O");}
async function willNormalizeRepeatedCharacters() {  assertStrictEq(await normalize("éééé"), "eeee");  assertStrictEq(await normalize("åååå"), "aaaa");  assertStrictEq(await normalize("éåéåéåéå"), "eaeaeaea");  assertStrictEq(await normalize("åéåéåéåé"), "aeaeaeae");}
prepareTest(  [    willSkipNormalizationForEmptyCharacter,    willNormalizeSingleCharacter,    willNormalizeAccentedCharacters,    willNormalizeAccentedCharactersWithoutUsingNativeFunction,    willReturnOriginalCharacterWhenNoMatchFound,    willNormalizeNonAccentedCharacter,    willNormalizeRepeatedCharacters  ],  "normalize_diacritics");