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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import * as path from "../../path/mod.ts";import { assertEquals } from "../../testing/asserts.ts";import { assertCallbackErrorUncaught } from "../_test_utils.ts";import { realpath, realpathSync } from "./_fs_realpath.ts";
Deno.test("realpath", async function () {  const tempFile = await Deno.makeTempFile();  const tempFileAlias = tempFile + ".alias";  await Deno.symlink(tempFile, tempFileAlias);  const realPath = await new Promise((resolve, reject) => {    realpath(tempFile, (err, path) => {      if (err) {        reject(err);        return;      }      resolve(path);    });  });  const realSymLinkPath = await new Promise((resolve, reject) => {    realpath(tempFileAlias, (err, path) => {      if (err) {        reject(err);        return;      }      resolve(path);    });  });  assertEquals(realPath, realSymLinkPath);});
Deno.test("realpathSync", function () {  const tempFile = Deno.makeTempFileSync();  const tempFileAlias = tempFile + ".alias";  Deno.symlinkSync(tempFile, tempFileAlias);  const realPath = realpathSync(tempFile);  const realSymLinkPath = realpathSync(tempFileAlias);  assertEquals(realPath, realSymLinkPath);});
Deno.test("[std/node/fs] realpath callback isn't called twice if error is thrown", async () => {  const tempDir = await Deno.makeTempDir();  const tempFile = path.join(tempDir, "file.txt");  const linkFile = path.join(tempDir, "link.txt");  await Deno.writeTextFile(tempFile, "hello world");  await Deno.symlink(tempFile, linkFile, { type: "file" });  const importUrl = new URL("./_fs_realpath.ts", import.meta.url);  await assertCallbackErrorUncaught({    prelude: `import { realpath } from ${JSON.stringify(importUrl)}`,    invocation: `realpath(${JSON.stringify(`${tempDir}/link.txt`)}, `,    async cleanup() {      await Deno.remove(tempDir, { recursive: true });    },  });});