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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.// TODO(axetroy): Add test for Windows once symlink is implemented for Windows.import {  assertEquals,  assertThrows,  assertThrowsAsync,} from "../testing/asserts.ts";import * as path from "../path/mod.ts";import { ensureSymlink, ensureSymlinkSync } from "./ensure_symlink.ts";
const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));const testdataDir = path.resolve(moduleDir, "testdata");
Deno.test("ensureSymlinkIfItNotExist", async function (): Promise<void> {  const testDir = path.join(testdataDir, "link_file_1");  const testFile = path.join(testDir, "test.txt");
  await assertThrowsAsync(    async (): Promise<void> => {      await ensureSymlink(testFile, path.join(testDir, "test1.txt"));    },  );
  await assertThrowsAsync(    async (): Promise<void> => {      await Deno.stat(testFile).then((): void => {        throw new Error("test file should exists.");      });    },  );});
Deno.test("ensureSymlinkSyncIfItNotExist", function (): void {  const testDir = path.join(testdataDir, "link_file_2");  const testFile = path.join(testDir, "test.txt");
  assertThrows((): void => {    ensureSymlinkSync(testFile, path.join(testDir, "test1.txt"));  });
  assertThrows((): void => {    Deno.statSync(testFile);    throw new Error("test file should exists.");  });});
Deno.test("ensureSymlinkIfItExist", async function (): Promise<void> {  const testDir = path.join(testdataDir, "link_file_3");  const testFile = path.join(testDir, "test.txt");  const linkFile = path.join(testDir, "link.txt");
  await Deno.mkdir(testDir, { recursive: true });  await Deno.writeFile(testFile, new Uint8Array());
  await ensureSymlink(testFile, linkFile);
  const srcStat = await Deno.lstat(testFile);  const linkStat = await Deno.lstat(linkFile);
  assertEquals(srcStat.isFile, true);  assertEquals(linkStat.isSymlink, true);
  await Deno.remove(testDir, { recursive: true });});
Deno.test("ensureSymlinkSyncIfItExist", function (): void {  const testDir = path.join(testdataDir, "link_file_4");  const testFile = path.join(testDir, "test.txt");  const linkFile = path.join(testDir, "link.txt");
  Deno.mkdirSync(testDir, { recursive: true });  Deno.writeFileSync(testFile, new Uint8Array());
  ensureSymlinkSync(testFile, linkFile);
  const srcStat = Deno.lstatSync(testFile);
  const linkStat = Deno.lstatSync(linkFile);
  assertEquals(srcStat.isFile, true);  assertEquals(linkStat.isSymlink, true);
  Deno.removeSync(testDir, { recursive: true });});
Deno.test("ensureSymlinkDirectoryIfItExist", async function (): Promise<void> {  const testDir = path.join(testdataDir, "link_file_origin_3");  const linkDir = path.join(testdataDir, "link_file_link_3");  const testFile = path.join(testDir, "test.txt");
  await Deno.mkdir(testDir, { recursive: true });  await Deno.writeFile(testFile, new Uint8Array());
  await ensureSymlink(testDir, linkDir);
  const testDirStat = await Deno.lstat(testDir);  const linkDirStat = await Deno.lstat(linkDir);  const testFileStat = await Deno.lstat(testFile);
  assertEquals(testFileStat.isFile, true);  assertEquals(testDirStat.isDirectory, true);  assertEquals(linkDirStat.isSymlink, true);
  await Deno.remove(linkDir, { recursive: true });  await Deno.remove(testDir, { recursive: true });});
Deno.test("ensureSymlinkSyncDirectoryIfItExist", function (): void {  const testDir = path.join(testdataDir, "link_file_origin_3");  const linkDir = path.join(testdataDir, "link_file_link_3");  const testFile = path.join(testDir, "test.txt");
  Deno.mkdirSync(testDir, { recursive: true });  Deno.writeFileSync(testFile, new Uint8Array());
  ensureSymlinkSync(testDir, linkDir);
  const testDirStat = Deno.lstatSync(testDir);  const linkDirStat = Deno.lstatSync(linkDir);  const testFileStat = Deno.lstatSync(testFile);
  assertEquals(testFileStat.isFile, true);  assertEquals(testDirStat.isDirectory, true);  assertEquals(linkDirStat.isSymlink, true);
  Deno.removeSync(linkDir, { recursive: true });  Deno.removeSync(testDir, { recursive: true });});