Skip to main content
Using Deno in production at your company? Earn free Deno merch.
Give us feedback
Module

std/fs/empty_dir_test.ts

The Deno Standard Library
Latest
File
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import { assertEquals, assertRejects, assertStringIncludes, assertThrows,} from "../assert/mod.ts";import * as path from "../path/mod.ts";import { emptyDir, emptyDirSync } from "./empty_dir.ts";
const testdataDir = path.join(import.meta.dirname!, "testdata");
Deno.test("emptyDir() creates a new dir if it does not exist", async function () { const testDir = path.join(testdataDir, "empty_dir_test_1"); const testNestDir = path.join(testDir, "nest"); // empty a dir which not exist. then it will create new one await emptyDir(testNestDir);
try { // check the dir const stat = await Deno.stat(testNestDir); assertEquals(stat.isDirectory, true); } finally { // remove the test dir await Deno.remove(testDir, { recursive: true }); }});
Deno.test("emptyDirSync() creates a new dir if it does not exist", function () { const testDir = path.join(testdataDir, "empty_dir_test_2"); const testNestDir = path.join(testDir, "nest"); // empty a dir which does not exist, then it will a create new one. emptyDirSync(testNestDir);
try { // check the dir const stat = Deno.statSync(testNestDir); assertEquals(stat.isDirectory, true); } finally { // remove the test dir Deno.removeSync(testDir, { recursive: true }); }});
Deno.test("emptyDir() empties nested dirs and files", async function () { const testDir = path.join(testdataDir, "empty_dir_test_3"); const testNestDir = path.join(testDir, "nest"); // create test dir await emptyDir(testNestDir); const testDirFile = path.join(testNestDir, "test.ts"); // create test file in test dir await Deno.writeFile(testDirFile, new Uint8Array());
// before empty: make sure file/directory exist const beforeFileStat = await Deno.stat(testDirFile); assertEquals(beforeFileStat.isFile, true);
const beforeDirStat = await Deno.stat(testNestDir); assertEquals(beforeDirStat.isDirectory, true);
await emptyDir(testDir);
// after empty: file/directory have already been removed try { // test dir still there const stat = await Deno.stat(testDir); assertEquals(stat.isDirectory, true);
// nest directory have been removed await assertRejects( async () => { await Deno.stat(testNestDir); }, );
// test file have been removed await assertRejects( async () => { await Deno.stat(testDirFile); }, ); } finally { // remote test dir await Deno.remove(testDir, { recursive: true }); }});
Deno.test("emptyDirSync() empties nested dirs and files", function () { const testDir = path.join(testdataDir, "empty_dir_test_4"); const testNestDir = path.join(testDir, "nest"); // create test dir emptyDirSync(testNestDir); const testDirFile = path.join(testNestDir, "test.ts"); // create test file in test dir Deno.writeFileSync(testDirFile, new Uint8Array());
// before empty: make sure file/directory exist const beforeFileStat = Deno.statSync(testDirFile); assertEquals(beforeFileStat.isFile, true);
const beforeDirStat = Deno.statSync(testNestDir); assertEquals(beforeDirStat.isDirectory, true);
emptyDirSync(testDir);
// after empty: file/directory have already remove try { // test dir still present const stat = Deno.statSync(testDir); assertEquals(stat.isDirectory, true);
// nest directory have been removed assertThrows(() => { Deno.statSync(testNestDir); });
// test file have been removed assertThrows(() => { Deno.statSync(testDirFile); }); } finally { // remote test dir Deno.removeSync(testDir, { recursive: true }); }});
interface Scenes { read: boolean; // --allow-read write: boolean; // --allow-write async: boolean; output: string;}const scenes: Scenes[] = [ // 1 { read: false, write: false, async: true, output: "run again with the --allow-read flag", }, { read: false, write: false, async: false, output: "run again with the --allow-read flag", }, // 2 { read: true, write: false, async: true, output: "run again with the --allow-write flag", }, { read: true, write: false, async: false, output: "run again with the --allow-write flag", }, // 3 { read: false, write: true, async: true, output: "run again with the --allow-read flag", }, { read: false, write: true, async: false, output: "run again with the --allow-read flag", }, // 4 { read: true, write: true, async: true, output: "success", }, { read: true, write: true, async: false, output: "success", },];for (const s of scenes) { let title = `${s.async ? "emptyDir()" : "emptyDirSync()"}`; title += ` test ("testdata/testfolder") ${s.read ? "with" : "without"}`; title += ` --allow-read & ${s.write ? "with" : "without"} --allow-write`; Deno.test(`${title} permission`, async function (): Promise< void > { const testfolder = path.join(testdataDir, "testfolder");
try { await Deno.mkdir(testfolder);
await Deno.writeTextFile( path.join(testfolder, "child.txt"), "hello world", );
try { const args = [ "run", "--no-lock", "--quiet", "--no-prompt", "--config", "deno.json", ];
if (s.read) { args.push("--allow-read"); }
if (s.write) { args.push("--allow-write"); }
args.push( path.join( testdataDir, s.async ? "empty_dir.ts" : "empty_dir_sync.ts", ), );
const command = new Deno.Command(Deno.execPath(), { args, }); const { stdout, stderr } = await command.output(); assertStringIncludes(new TextDecoder().decode(stdout), s.output); if (stderr.length > 0) { console.log(new TextDecoder().decode(stderr)); } } catch (err) { console.log(err); await Deno.remove(testfolder, { recursive: true }); throw err; } } finally { // Make the test rerunnable // Otherwise it would throw an error due to mkdir fail. await Deno.remove(testfolder, { recursive: true }); // done } });}