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import { assertEquals, assertNotEquals, fail } from "../../testing/asserts.ts";import { readdir, readdirSync } from "./_fs_readdir.ts";import { join } from "../../path/mod.ts";
Deno.test({  name: "ASYNC: reading empty directory",  async fn() {    const dir = Deno.makeTempDirSync();    await new Promise<string[]>((resolve, reject) => {      readdir(dir, (err, files) => {        if (err) reject(err);        resolve(files);      });    })      .then((files) => assertEquals(files, []))      .catch(() => fail())      .finally(() => Deno.removeSync(dir));  },});
function assertEqualsArrayAnyOrder<T>(actual: T[], expected: T[]) {  assertEquals(actual.length, expected.length);  for (const item of expected) {    const index = actual.indexOf(item);    assertNotEquals(index, -1);    expected = expected.splice(index, 1);  }}
Deno.test({  name: "ASYNC: reading non-empty directory",  async fn() {    const dir = Deno.makeTempDirSync();    Deno.writeTextFileSync(join(dir, "file1.txt"), "hi");    Deno.writeTextFileSync(join(dir, "file2.txt"), "hi");    Deno.mkdirSync(join(dir, "some_dir"));    await new Promise<string[]>((resolve, reject) => {      readdir(dir, (err, files) => {        if (err) reject(err);        resolve(files);      });    })      .then((files) =>        assertEqualsArrayAnyOrder(files, ["file1.txt", "some_dir", "file2.txt"])      )      .catch(() => fail())      .finally(() => Deno.removeSync(dir, { recursive: true }));  },});
Deno.test({  name: "SYNC: reading empty the directory",  fn() {    const dir = Deno.makeTempDirSync();    assertEquals(readdirSync(dir), []);  },});
Deno.test({  name: "SYNC: reading non-empty directory",  fn() {    const dir = Deno.makeTempDirSync();    Deno.writeTextFileSync(join(dir, "file1.txt"), "hi");    Deno.writeTextFileSync(join(dir, "file2.txt"), "hi");    Deno.mkdirSync(join(dir, "some_dir"));    assertEqualsArrayAnyOrder(      readdirSync(dir),      ["file1.txt", "some_dir", "file2.txt"],    );  },});