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std/fs/empty_dir_test.ts

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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals, assertStrContains, assertThrows, assertThrowsAsync,} from "../testing/asserts.ts";import * as path from "../path/mod.ts";import { emptyDir, emptyDirSync } from "./empty_dir.ts";
const testdataDir = path.resolve("fs", "testdata");
Deno.test(async function emptyDirIfItNotExist(): Promise<void> { 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(function emptyDirSyncIfItNotExist(): void { const testDir = path.join(testdataDir, "empty_dir_test_2"); const testNestDir = path.join(testDir, "nest"); // empty a dir which not exist. then it will 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(async function emptyDirIfItExist(): Promise<void> { 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 remove try { // test dir still there const stat = await Deno.stat(testDir); assertEquals(stat.isDirectory, true);
// nest directory have been remove await assertThrowsAsync( async (): Promise<void> => { await Deno.stat(testNestDir); } );
// test file have been remove await assertThrowsAsync( async (): Promise<void> => { await Deno.stat(testDirFile); } ); } finally { // remote test dir await Deno.remove(testDir, { recursive: true }); }});
Deno.test(function emptyDirSyncIfItExist(): void { 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 there const stat = Deno.statSync(testDir); assertEquals(stat.isDirectory, true);
// nest directory have been remove assertThrows((): void => { Deno.statSync(testNestDir); });
// test file have been remove assertThrows((): void => { 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 = `test ${s.async ? "emptyDir" : "emptyDirSync"}`; title += `("testdata/testfolder") ${s.read ? "with" : "without"}`; title += ` --allow-read & ${s.write ? "with" : "without"} --allow-write`; Deno.test(`[fs] emptyDirPermission ${title}`, async function (): Promise< void > { const testfolder = path.join(testdataDir, "testfolder");
try { await Deno.mkdir(testfolder);
await Deno.writeFile( path.join(testfolder, "child.txt"), new TextEncoder().encode("hello world") );
try { const args = [Deno.execPath(), "run"];
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") ); args.push("testfolder");
const p = Deno.run({ stdout: "piped", cwd: testdataDir, cmd: args, });
assert(p.stdout); const output = await p.output(); p.close(); assertStrContains(new TextDecoder().decode(output), s.output); } catch (err) { await Deno.remove(testfolder, { recursive: true }); throw err; } } finally { // Make the test rerunnable // Otherwise would throw error due to mkdir fail. await Deno.remove(testfolder, { recursive: true }); // done } });}