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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { walk, WalkEntry, WalkError, WalkOptions, walkSync } from "./walk.ts";import {  assertArrayIncludes,  assertEquals,  assertRejects,  assertThrows,} from "../assert/mod.ts";import { fromFileUrl, resolve } from "../path/mod.ts";
const testdataDir = resolve(fromFileUrl(import.meta.url), "../testdata/walk");
async function toArray(iterator: AsyncIterableIterator<WalkEntry>) {  const entries = [];  for await (const entry of iterator) {    entries.push(entry);  }  return entries;}
async function assertWalkPaths(  rootPath: string,  expectedPaths: string[],  options?: WalkOptions,) {  const root = resolve(testdataDir, rootPath);  const entries = await toArray(walk(root, options));  const entriesSync = Array.from(walkSync(root, options));
  const expected = expectedPaths.map((path) => resolve(root, path));  assertEquals(entries, entriesSync);  assertEquals(entries.length, expected.length);  assertArrayIncludes(entries.map(({ path }) => path), expected);}
Deno.test("[fs/walk] empty dir", async () => {  const emptyDir = resolve(testdataDir, "empty_dir");  await Deno.mkdir(emptyDir);  await assertWalkPaths("empty_dir", ["."]);  await Deno.remove(emptyDir);});
Deno.test("[fs/walk] single file", async () =>  await assertWalkPaths("single_file", [".", "x"]));
Deno.test("[fs/walk] nested single file", async () =>  await assertWalkPaths("nested_single_file", [".", "a", "a/x"]));
Deno.test("[fs/walk] max depth", async () =>  await assertWalkPaths("depth", [".", "a", "a/b", "a/b/c"], { maxDepth: 3 }));
Deno.test("[fs/walk] exclude dirs", async () =>  await assertWalkPaths("depth", ["a/b/c/d/x"], { includeDirs: false }));
Deno.test("[fs/walk] exclude files", async () =>  await assertWalkPaths("depth", [".", "a", "a/b", "a/b/c", "a/b/c/d"], {    includeFiles: false,  }));
Deno.test("[fs/walk] ext", async () =>  await assertWalkPaths("ext", ["y.rs", "x.ts"], {    exts: [".rs", ".ts"],  }));
Deno.test("[fs/walk] ext", async () =>  await assertWalkPaths("match", ["x", "y"], {    match: [/x/, /y/],  }));
Deno.test("[fs/walk] skip", async () =>  await assertWalkPaths("match", [".", "z"], {    skip: [/x/, /y/],  }));
// https://github.com/denoland/deno_std/issues/1358Deno.test("[fs/walk] symlink", async () =>  await assertWalkPaths("symlink", [".", "x", "x"], {    followSymlinks: true,  }));
Deno.test("[fs/walk] symlink without followSymlink", async () => {  await assertWalkPaths("symlink", [".", "x", "y"], {    followSymlinks: false,  });});
Deno.test("[fs/walk] non-existent root", async () => {  const root = resolve(testdataDir, "non_existent");  await assertRejects(    async () => await toArray(walk(root)),    Deno.errors.NotFound,  );  assertThrows(() => Array.from(walkSync(root)), Deno.errors.NotFound);});
// https://github.com/denoland/deno_std/issues/1789Deno.test({  name: "[fs/walk] unix socket",  ignore: Deno.build.os === "windows",  async fn() {    const path = resolve(testdataDir, "socket", "a.sock");    try {      const listener = Deno.listen({ path, transport: "unix" });      await assertWalkPaths("socket", [".", "a.sock", ".gitignore"], {        followSymlinks: true,      });      listener.close();    } finally {      await Deno.remove(path);    }  },});
Deno.test({  name: "[fs/walk] fifo",  ignore: Deno.build.os === "windows",  async fn() {    const command = new Deno.Command("mkfifo", {      args: [resolve(testdataDir, "fifo", "fifo")],    });    await command.output();    await assertWalkPaths("fifo", [".", "fifo", ".gitignore"], {      followSymlinks: true,    });  },});
Deno.test("[fs/walk] error", async () => {  const root = resolve(testdataDir, "error");  await Deno.mkdir(root);  await assertRejects(async () => {    for await (const _entry of walk(root)) {      await Deno.remove(root, { recursive: true });    }  }, WalkError);});