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fs.test.ts
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fs.test.ts
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import { deepStrictEqual, ok, strictEqual } from "node:assert";
import fs from "node:fs/promises";
import os from "node:os";
import { isBun, isDeno } from "./env.ts";
import jsext, { _try } from "./index.ts";
import { readAsArray, readAsText } from "./reader.ts";
import { platform } from "./runtime.ts";
import { basename, join, resolve, sep, toFsPath } from "./path.ts";
import bytes, { equals } from "./bytes.ts";
import {
EOL,
FileInfo,
chmod,
copy,
ensureDir,
exists,
link,
mkdir,
readDir,
readFile,
readFileAsText,
readFileAsFile,
readLink,
readTree,
remove,
rename,
stat,
truncate,
utimes,
writeFile,
writeLines,
createReadableStream,
createWritableStream,
DirEntry,
DirTree,
} from "./fs.ts";
import { random } from "./string.ts";
const homedir = os.homedir();
function rmDir(path: string) {
if (typeof fs.rm === "function") {
return fs.rm(path, { recursive: true, force: true });
} else {
return fs.rmdir(path, { recursive: true });
}
}
describe("fs", () => {
it("EOL", () => {
if (typeof Deno === "object" && Deno.build?.os === "windows") {
strictEqual(EOL, "\r\n");
} else if (typeof process === "object" && process.platform === "win32") {
strictEqual(EOL, "\r\n");
} else {
strictEqual(EOL, "\n");
}
});
describe("exists", () => {
it("file", async () => {
const ok = await exists("./fs.ts");
strictEqual(ok, true);
});
it("directory", async () => {
const ok = await exists("./fs");
strictEqual(ok, true);
});
it("~ support", async () => {
const ok = await exists("~");
strictEqual(ok, true);
});
it("file URL support", async () => {
{
const ok = await exists(new URL("./fs.ts", import.meta.url));
strictEqual(ok, true);
}
{
const ok = await exists(new URL("./fs.ts", import.meta.url).href);
strictEqual(ok, true);
}
});
});
describe("stat", () => {
it("file", async () => {
const stat1 = await stat("./fs.ts");
if (isDeno) {
const stat2 = await Deno.stat("./fs.ts");
deepStrictEqual(stat1, {
name: "fs.ts",
kind: "file",
size: stat2.size,
type: "video/mp2t",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode ?? 0,
uid: stat2.uid ?? 0,
gid: stat2.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const stat2 = await fs.stat("./fs.ts");
deepStrictEqual(stat1, {
name: "fs.ts",
kind: "file",
size: stat2.size,
type: "video/mp2t",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode,
uid: stat2.uid,
gid: stat2.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
});
it("directory", async () => {
const stat1 = await stat("./fs");
if (isDeno) {
const stat2 = await Deno.stat("./fs");
deepStrictEqual(stat1, {
name: "fs",
kind: "directory",
size: stat2.size,
type: "",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode ?? 0,
uid: stat2.uid ?? 0,
gid: stat2.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const stat2 = await fs.stat("./fs");
deepStrictEqual(stat1, {
name: "fs",
kind: "directory",
size: stat2.size,
type: "",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode,
uid: stat2.uid,
gid: stat2.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
});
it("symlink", jsext.func(async (defer) => {
const src = resolve("./fs");
const dest = resolve("./fs-ln");
if (isDeno) {
await Deno.symlink(src, dest, { type: "dir" });
} else {
await fs.symlink(src, dest, "dir");
}
defer(async () => {
if (isDeno) {
await Deno.remove(dest);
} else {
fs.unlink(dest);
}
});
const stat1 = await stat(dest);
if (isDeno) {
const _stat = await Deno.lstat(dest);
deepStrictEqual(stat1, {
name: "fs-ln",
kind: "symlink",
size: _stat.size,
type: "",
mtime: _stat.mtime,
atime: _stat.atime,
birthtime: _stat.birthtime,
mode: _stat.mode ?? 0,
uid: _stat.uid ?? 0,
gid: _stat.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const _stat = await fs.lstat(dest);
deepStrictEqual(stat1, {
name: "fs-ln",
kind: "symlink",
size: _stat.size,
type: "",
mtime: _stat.mtime,
atime: _stat.atime,
birthtime: _stat.birthtime,
mode: _stat.mode,
uid: _stat.uid,
gid: _stat.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
const stat2 = await stat(dest, { followSymlink: true });
if (isDeno) {
const _stat = await Deno.stat(dest);
deepStrictEqual(stat2, {
name: "fs-ln",
kind: "directory",
size: _stat.size,
type: "",
mtime: _stat.mtime,
atime: _stat.atime,
birthtime: _stat.birthtime,
mode: _stat.mode ?? 0,
uid: _stat.uid ?? 0,
gid: _stat.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const _stat = await fs.stat(dest);
deepStrictEqual(stat2, {
name: "fs-ln",
kind: "directory",
size: _stat.size,
type: "",
mtime: _stat.mtime,
atime: _stat.atime,
birthtime: _stat.birthtime,
mode: _stat.mode,
uid: _stat.uid,
gid: _stat.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
}));
it("~ support", async () => {
const stat1 = await stat("~");
if (isDeno) {
const stat2 = await Deno.stat(homedir);
deepStrictEqual(stat1, {
name: basename(homedir),
kind: "directory",
size: stat2.size,
type: "",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode ?? 0,
uid: stat2.uid ?? 0,
gid: stat2.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const stat2 = await fs.stat(homedir);
deepStrictEqual(stat1, {
name: basename(homedir),
kind: "directory",
size: stat2.size,
type: "",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode,
uid: stat2.uid,
gid: stat2.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
});
it("file URL support", async () => {
const stat1 = await stat(new URL("./fs.ts", import.meta.url));
if (isDeno) {
const stat2 = await Deno.stat("./fs.ts");
deepStrictEqual(stat1, {
name: "fs.ts",
kind: "file",
size: stat2.size,
type: "video/mp2t",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode ?? 0,
uid: stat2.uid ?? 0,
gid: stat2.gid ?? 0,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
} else {
const stat2 = await fs.stat("./fs.ts");
deepStrictEqual(stat1, {
name: "fs.ts",
kind: "file",
size: stat2.size,
type: "video/mp2t",
mtime: stat2.mtime,
atime: stat2.atime,
birthtime: stat2.birthtime,
mode: stat2.mode,
uid: stat2.uid,
gid: stat2.gid,
isBlockDevice: false,
isCharDevice: false,
isFIFO: false,
isSocket: false,
} as FileInfo);
}
});
});
describe("mkdir", () => {
it("default", jsext.func(async (defer) => {
await mkdir("./tmp");
defer(() => rmDir("./tmp"));
const _stat = await stat("./tmp");
strictEqual(_stat.name, "tmp");
strictEqual(_stat.kind, "directory");
}));
it("recursive", jsext.func(async (defer) => {
await mkdir("./tmp/a/b/c", { recursive: true });
defer(() => rmDir("./tmp"));
const _stat = await stat("./tmp/a/b/c");
strictEqual(_stat.name, "c");
strictEqual(_stat.kind, "directory");
}));
it("mode", jsext.func(async function (defer) {
if (platform() === "windows") {
this.skip();
}
await mkdir("./tmp", { mode: 0o755 });
defer(() => rmDir("./tmp"));
if (isDeno) {
const _stat = await Deno.stat("./tmp");
strictEqual((_stat.mode ?? 0) & 0o755, 0o755);
} else {
const _stat = await fs.stat("./tmp");
strictEqual(_stat.mode & 0o755, 0o755);
}
}));
it("~ support", jsext.func(async (defer) => {
const dir = "~/tmp_" + random(8);
await mkdir(dir);
defer(() => rmDir(join(homedir, basename(dir))));
const _stat = await stat(dir);
strictEqual(_stat.name, basename(dir));
strictEqual(_stat.kind, "directory");
}));
it("file URL support", jsext.func(async (defer) => {
const url = new URL("./tmp", import.meta.url);
await mkdir(url);
defer(() => rmDir(toFsPath(url.toString())));
const _stat = await stat(url);
strictEqual(_stat.name, "tmp");
strictEqual(_stat.kind, "directory");
}));
});
describe("ensureDir", () => {
it("ignore", jsext.func(async (defer) => {
const path = "./tmp/a/b/c";
await mkdir(path, { recursive: true });
defer(() => remove("./tmp", { recursive: true }));
await ensureDir(path);
const _stat = await stat(path);
strictEqual(_stat.name, "c");
strictEqual(_stat.kind, "directory");
}));
it("create", jsext.func(async (defer) => {
const path = "./tmp/a/b/c";
await ensureDir(path);
defer(() => remove("./tmp", { recursive: true }));
const _stat = await stat(path);
strictEqual(_stat.name, "c");
strictEqual(_stat.kind, "directory");
}));
it("mode", jsext.func(async function (defer) {
if (platform() === "windows") {
this.skip();
}
const path = "./tmp/a/b/c";
await ensureDir(path, { mode: 0o755 });
defer(() => remove("./tmp", { recursive: true }));
if (isDeno) {
const _stat = await Deno.stat(path);
strictEqual((_stat.mode ?? 0) & 0o755, 0o755);
} else {
const _stat = await fs.stat(path);
strictEqual(_stat.mode & 0o755, 0o755);
}
}));
it("~ support", jsext.func(async (defer) => {
const parent = "tmp_" + random(8);
const _path = parent + "/a/b/c";
const dir = join("~", _path);
await ensureDir(dir);
defer(() => remove(join(homedir, parent), { recursive: true }));
const _stat = await stat(dir);
strictEqual(_stat.name, basename(dir));
strictEqual(_stat.kind, "directory");
}));
it("file URL support", jsext.func(async (defer) => {
const path = new URL("./tmp/a/b/c", import.meta.url);
await ensureDir(path);
defer(() => remove(new URL("./tmp", import.meta.url), { recursive: true }));
const _stat = await stat(path);
strictEqual(_stat.name, "c");
strictEqual(_stat.kind, "directory");
}));
});
describe("readDir", () => {
it("default", async () => {
const files = await readAsArray(readDir("./esm"));
for (const file of files) {
ok(file.name && file.name !== "");
strictEqual(file.relativePath, file.name);
try {
strictEqual(file.kind, "file");
} catch {
strictEqual(file.kind, "directory");
}
}
});
it("recursive", async () => {
const files = await readAsArray(readDir("./esm", { recursive: true }));
for (const file of files) {
ok(file.name && file.name !== "");
ok(file.relativePath && file.relativePath !== "");
if (file.relativePath !== file.name) {
ok(file.relativePath.endsWith(sep + file.name));
}
try {
strictEqual(file.kind, "file");
} catch {
strictEqual(file.kind, "directory");
}
}
});
it("symlink", jsext.func(async (defer) => {
if (isDeno) {
await Deno.symlink("./fs/types.ts", "./fs/types-ln.ts", { type: "file" });
} else {
await fs.symlink("./fs/types.ts", "./fs/types-ln.ts", "file");
}
defer(async () => {
if (isDeno) {
await Deno.remove("./fs/types-ln.ts");
} else {
fs.unlink("./fs/types-ln.ts");
}
});
const files = await readAsArray(readDir("./fs"));
ok(files.some(file => file.name === "types-ln.ts" && file.kind === "symlink"));
}));
it("~ support", jsext.func(async (defer) => {
const dir = "~/tmp_" + random(8);
await mkdir(dir);
defer(() => remove(dir, { recursive: true }));
const files = await readAsArray(readDir("~"));
ok(files.some(file => file.name === basename(dir) && file.kind === "directory"));
}));
it("file URL support", async () => {
const files = await readAsArray(readDir(new URL("./esm", import.meta.url)));
for (const file of files) {
ok(file.name && file.name !== "");
strictEqual(file.relativePath, file.name);
try {
strictEqual(file.kind, "file");
} catch {
strictEqual(file.kind, "directory");
}
}
});
});
describe("readTree", () => {
it("default", jsext.func(async (defer) => {
const root = "./tmp";
const dir1 = "./tmp/a";
const dir2 = "./tmp/b/c";
const file1 = "./tmp/d.txt";
const file2 = "./tmp/b/e.txt";
await mkdir(dir1, { recursive: true });
await mkdir(dir2, { recursive: true });
await writeFile(file1, "Hello, world!");
await writeFile(file2, "Hello, world!");
defer(() => remove(root, { recursive: true }));
const tree = await readTree(root);
deepStrictEqual(tree, {
name: "tmp",
kind: "directory",
relativePath: "",
children: [
{
name: "a",
kind: "directory",
relativePath: "a",
children: [],
},
{
name: "b",
kind: "directory",
relativePath: "b",
children: [
{
name: "c",
kind: "directory",
relativePath: join("b", "c"),
children: [],
},
{
name: "e.txt",
kind: "file",
relativePath: join("b", "e.txt"),
},
],
},
{
name: "d.txt",
kind: "file",
relativePath: "d.txt",
},
],
} satisfies DirTree);
}));
it("file URL support", jsext.func(async (defer) => {
const root = new URL("./tmp", import.meta.url);
const dir1 = "./tmp/a";
const dir2 = "./tmp/b/c";
const file1 = "./tmp/d.txt";
const file2 = "./tmp/b/e.txt";
await mkdir(dir1, { recursive: true });
await mkdir(dir2, { recursive: true });
await writeFile(file1, "Hello, world!");
await writeFile(file2, "Hello, world!");
defer(() => remove(root, { recursive: true }));
const tree = await readTree(root);
deepStrictEqual(tree, {
name: "tmp",
kind: "directory",
relativePath: "",
children: [
{
name: "a",
kind: "directory",
relativePath: "a",
children: [],
},
{
name: "b",
kind: "directory",
relativePath: "b",
children: [
{
name: "c",
kind: "directory",
relativePath: join("b", "c"),
children: [],
},
{
name: "e.txt",
kind: "file",
relativePath: join("b", "e.txt"),
},
],
},
{
name: "d.txt",
kind: "file",
relativePath: "d.txt",
},
],
} satisfies DirTree);
}));
});
describe("readFile", () => {
it("default", async () => {
const data = await readFile("./fs.ts");
if (isDeno) {
const _data = await Deno.readFile("./fs.ts");
ok(equals(data, _data));
} else {
const _data = await fs.readFile("./fs.ts");
ok(equals(data, _data));
}
});
it("signal", async function () {
if (typeof AbortController === "undefined" || isBun) {
this.skip();
}
const controller = new AbortController();
const signal = controller.signal;
const promise = readFile("./fs.ts", { signal });
controller.abort();
const [err, res] = await jsext._try(promise);
ok(err instanceof Error);
strictEqual(err.name, "AbortError");
strictEqual(res, undefined);
});
it("~ support", jsext.func(async (defer) => {
const baseName = "tmp_" + random(8) + ".txt";
const filename = "~/" + baseName;
await writeFile(filename, "Hello, world!");
defer(() => remove(join(homedir, baseName)));
await exists(join(homedir, baseName));
const data = await readFile(filename);
const text = new TextDecoder().decode(data);
strictEqual(text, "Hello, world!");
}));
it("file URL support", async () => {
const data = await readFile(new URL("./fs.ts", import.meta.url));
if (isDeno) {
const _data = await Deno.readFile("./fs.ts");
ok(equals(data, _data));
} else {
const _data = await fs.readFile("./fs.ts");
ok(equals(data, _data));
}
});
});
describe("readFileAsText", () => {
it("default", async () => {
const text = await readFileAsText("./fs.ts");
if (isDeno) {
const _text = await Deno.readTextFile("./fs.ts");
strictEqual(text, _text);
} else {
const _text = await fs.readFile("./fs.ts", "utf8");
strictEqual(text, _text);
}
});
it("signal", async function () {
if (typeof AbortController === "undefined" || isBun) {
this.skip();
}
const controller = new AbortController();
const signal = controller.signal;
const promise = readFileAsText("./fs.ts", { signal });
controller.abort();
const [err, res] = await jsext._try(promise);
ok(err instanceof Error);
strictEqual(err.name, "AbortError");
strictEqual(res, undefined);
});
it("encoding", async function () {
if (isBun) {
this.skip(); // Bun does not support gb2312 at the moment.
}
let text = await readFileAsText("./examples/samples/gb2312.txt", { encoding: "gb2312" });
text = text.trimEnd();
strictEqual(text, "你好，世界！");
});
it("~ support", jsext.func(async (defer) => {
const baseName = "tmp_" + random(8) + ".txt";
const filename = "~/" + baseName;
await writeFile(filename, "Hello, world!");
defer(() => remove(join(homedir, baseName)));
await exists(join(homedir, baseName));
const text = await readFileAsText(filename);
strictEqual(text, "Hello, world!");
}));
it("file URL support", async () => {
const text = await readFileAsText(new URL("./fs.ts", import.meta.url));
if (isDeno) {
const _text = await Deno.readTextFile("./fs.ts");
strictEqual(text, _text);
} else {
const _text = await fs.readFile("./fs.ts", "utf8");
strictEqual(text, _text);
}
});
});
describe("readFileAsFile", () => {
if (typeof File === "undefined") {
return;
}
it("default", async () => {
const file = await readFileAsFile("./fs.ts");
let _file: File;
if (isDeno) {
_file = new File([await Deno.readFile("./fs.ts")], "fs.ts", {
type: "video/mp2t"
});
} else {
_file = new File([await fs.readFile("./fs.ts")], "fs.ts", {
type: "video/mp2t"
});
}
ok(file instanceof File);
strictEqual(file.name, _file.name);
strictEqual(file.size, _file.size);
strictEqual(file.type, _file.type);
});
it("signal", async function () {
if (typeof AbortController === "undefined" || isBun) {
this.skip();
}
const controller = new AbortController();
const signal = controller.signal;
const promise = readFileAsFile("./fs.ts", { signal });
controller.abort();
const [err, res] = await jsext._try(promise);
ok(err instanceof Error);
strictEqual(err.name, "AbortError");
strictEqual(res, undefined);
});
it("~ support", jsext.func(async (defer) => {
const baseName = "tmp_" + random(8) + ".txt";
const filename = "~/" + baseName;
await writeFile(filename, "Hello, world!");
defer(() => remove(join(homedir, baseName)));
await exists(join(homedir, baseName));
const file = await readFileAsFile(filename);
strictEqual(await file.text(), "Hello, world!");
}));
it("file URL support", async () => {
const file = await readFileAsFile(new URL("./fs.ts", import.meta.url));
let _file: File;
if (isDeno) {
_file = new File([await Deno.readFile("./fs.ts")], "fs.ts", {
type: "video/mp2t"
});
} else {
_file = new File([await fs.readFile("./fs.ts")], "fs.ts", {
type: "video/mp2t"
});
}
ok(file instanceof File);
strictEqual(file.name, _file.name);
strictEqual(file.size, _file.size);
strictEqual(file.type, _file.type);
});
});
describe("writeFile", () => {
const path = "./tmp.txt";
after(async () => {
await remove(path);
});
it("text", async () => {
const output = "Hello, world!";
await writeFile(path, output);
const text = await readFileAsText(path);
strictEqual(text, output);
});
it("Uint8Array", async () => {
const output = bytes("Hello, world!");
await writeFile(path, output);
const data = await readFile(path);
ok(equals(data, output));
});
it("ArrayBuffer", async () => {
const output = bytes("Hello, world!");
await writeFile(path, output.buffer);
const data = await readFile(path);
ok(equals(data, output));
});
it("DataView", async () => {
const output = new DataView(bytes("Hello, world!").buffer);
await writeFile(path, output);
const data = await readFile(path);
ok(equals(data, bytes("Hello, world!")));
});
it("ReadableStream", async function () {
if (typeof ReadableStream === "undefined") {
this.skip();
}
const output = bytes("Hello, world!");
const stream = new ReadableStream({
pull(controller) {
controller.enqueue(output);
controller.close();
}
});
await writeFile(path, stream);
const data = await readFile(path);
ok(equals(data, output));
});
it("Blob", async function () {
if (typeof Blob === "undefined") {
this.skip();
}
const output = new Blob([bytes("Hello, world!")]);
await writeFile(path, output);
const data = await readFile(path);
ok(equals(data, bytes("Hello, world!")));
});
it("File", async function () {
if (typeof File === "undefined") {
this.skip();
}
const output = new File([bytes("Hello, world!")], "tmp.txt");
await writeFile(path, output);
const data = await readFile(path);
ok(equals(data, bytes("Hello, world!")));
});
it("signal", async function () {
if (typeof AbortController === "undefined" || isBun) {
this.skip();
}
const controller = new AbortController();
const signal = controller.signal;
const promise = writeFile(path, "Hello, world!", { signal });
controller.abort();
const [err] = await jsext._try(promise);
ok(err instanceof Error);
strictEqual(err.name, "AbortError");
});
it("append", async () => {
const output = "Hello, world!";
await writeFile(path, output);
await writeFile(path, output, { append: true });
const text = await readFileAsText(path);
strictEqual(text, output + output);
});
it("mode", jsext.func(async function (defer) {
if (platform() === "windows") {
this.skip();
}
const path = "./tmp1.txt";
await writeFile(path, "Hello, world!", { mode: 0o755 });
defer(() => remove(path));
if (isDeno) {
const _stat = await Deno.stat(path);
strictEqual((_stat.mode ?? 0) & 0o755, 0o755);
} else {
const _stat = await fs.stat(path);
strictEqual(_stat.mode & 0o755, 0o755);
}
}));
it("~ support", jsext.func(async (defer) => {
const baseName = "tmp_" + random(8) + ".txt";
const filename = "~/" + baseName;
await writeFile(filename, "Hello, world!");
defer(() => remove(join(homedir, baseName)));
ok(await exists(join(homedir, baseName)));
}));
it("file URL support", async () => {
const path = new URL("./tmp.txt", import.meta.url);
const output = "Hello, world!";
await writeFile(path, output);
const text = await readFileAsText(path);
strictEqual(text, output);