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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import {  assert,  assertEquals,  assertFalse,  assertInstanceOf,  assertThrows,} from "../../testing/asserts.ts";import { opendir, opendirSync } from "./_fs_opendir.ts";import { Buffer } from "../buffer.ts";import { assertCallbackErrorUncaught } from "../_test_utils.ts";
Deno.test("[node/fs] opendir()", async (t) => {  const path = await Deno.makeTempDir();  const file = await Deno.makeTempFile();
  await t.step(    "fails if encoding is invalid",    () =>      opendir(        path,        { encoding: "invalid-encoding" },        (err) => assertInstanceOf(err, TypeError),      ),  );
  await t.step(    "fails if bufferSize is invalid",    () =>      opendir(        path,        { bufferSize: -1 },        (err) => assertInstanceOf(err, RangeError),      ),  );
  await t.step(    "fails if directory does not exist",    () =>      opendir(        "directory-that-does-not-exist",        (err) => assertInstanceOf(err, Error),      ),  );
  await t.step(    "fails if not a directory",    () =>      opendir(        file,        (err) => assertInstanceOf(err, Error),      ),  );
  await t.step(    "passes if path is a string",    () =>      opendir(        path,        (err, dir) => {          assertEquals(err, null);          assert(dir);        },      ),  );
  await t.step(    "passes if path is a Buffer",    () =>      opendir(        Buffer.from(path),        (err, dir) => {          assertFalse(err);          assert(dir);        },      ),  );
  await t.step(    "passes if path is a URL",    () =>      opendir(        new URL(`file://` + path),        (err, dir) => {          assertFalse(err);          assert(dir);        },      ),  );
  await t.step("passes if callback isn't called twice", async () => {    const importUrl = new URL("./_fs_opendir.ts", import.meta.url);    await assertCallbackErrorUncaught({      prelude: `import { opendir } from ${JSON.stringify(importUrl)}`,      invocation: `opendir(${JSON.stringify(path)}, `,    });  });
  await Deno.remove(path);  await Deno.remove(file);});
Deno.test("[node/fs] opendirSync()", async (t) => {  const path = await Deno.makeTempDir();  const file = await Deno.makeTempFile();
  await t.step("fails if encoding is invalid", () => {    assertThrows(      () => opendirSync(path, { encoding: "invalid-encoding" }),      TypeError,    );  });
  await t.step("fails if bufferSize is invalid", () => {    assertThrows(      () => opendirSync(path, { bufferSize: -1 }),      RangeError,    );  });
  await t.step("fails if directory does not exist", () => {    assertThrows(() => opendirSync("directory-that-does-not-exist"));  });
  await t.step("fails if not a directory", () => {    assertThrows(() => opendirSync(file));  });
  await t.step("passes if path is a string", () => {    assert(opendirSync(path));  });
  await t.step("passes if path is a Buffer", () => {    assert(opendirSync(Buffer.from(path)));  });
  await t.step("passes if path is a URL", () => {    assert(opendirSync(new URL(`file://` + path)));  });
  await Deno.remove(path);  await Deno.remove(file);});