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code-server/packages/ide/test/fs.test.ts
Asher d556e110cb
Include code in stringified errors
This is done by returning the entire error stringified instead of just
the message.

This fixes the issue with the "save as" dialog.
2019-02-26 16:27:01 -06:00

593 lines
18 KiB
TypeScript

import * as nativeFs from "fs";
import * as os from "os";
import * as path from "path";
import * as util from "util";
import * as rimraf from "rimraf";
import { createClient } from "@coder/protocol/test";
const client = createClient();
jest.mock("../src/fill/client", () => ({ client }));
const fs = require("../src/fill/fs") as typeof import("fs");
describe("fs", () => {
let i = 0;
const coderDir = path.join(os.tmpdir(), "coder", "fs");
const testFile = path.join(__dirname, "fs.test.ts");
const tmpFile = (): string => path.join(coderDir, `${i++}`);
const createTmpFile = async (): Promise<string> => {
const tf = tmpFile();
await util.promisify(nativeFs.writeFile)(tf, "");
return tf;
};
beforeAll(async () => {
try {
await util.promisify(nativeFs.mkdir)(path.dirname(coderDir));
} catch (error) {
if (error.code !== "EEXIST") {
throw error;
}
}
await util.promisify(rimraf)(coderDir);
await util.promisify(nativeFs.mkdir)(coderDir);
});
describe("access", () => {
it("should access existing file", async () => {
await expect(util.promisify(fs.access)(testFile))
.resolves.toBeUndefined();
});
it("should fail to access nonexistent file", async () => {
await expect(util.promisify(fs.access)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("append", () => {
it("should append to existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.appendFile)(file, "howdy"))
.resolves.toBeUndefined();
expect(await util.promisify(nativeFs.readFile)(file, "utf8"))
.toEqual("howdy");
});
it("should create then append to nonexistent file", async () => {
const file = tmpFile();
await expect(util.promisify(fs.appendFile)(file, "howdy"))
.resolves.toBeUndefined();
expect(await util.promisify(nativeFs.readFile)(file, "utf8"))
.toEqual("howdy");
});
it("should fail to append to file in nonexistent directory", async () => {
const file = path.join(tmpFile(), "nope");
await expect(util.promisify(fs.appendFile)(file, "howdy"))
.rejects.toThrow("ENOENT");
expect(await util.promisify(nativeFs.exists)(file))
.toEqual(false);
});
});
describe("chmod", () => {
it("should chmod existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.chmod)(file, "755"))
.resolves.toBeUndefined();
});
it("should fail to chmod nonexistent file", async () => {
await expect(util.promisify(fs.chmod)(tmpFile(), "755"))
.rejects.toThrow("ENOENT");
});
});
describe("chown", () => {
it("should chown existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.chown)(file, 1, 1))
.resolves.toBeUndefined();
});
it("should fail to chown nonexistent file", async () => {
await expect(util.promisify(fs.chown)(tmpFile(), 1, 1))
.rejects.toThrow("ENOENT");
});
});
describe("close", () => {
it("should close opened file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "r");
await expect(util.promisify(fs.close)(fd))
.resolves.toBeUndefined();
});
it("should fail to close non-opened file", async () => {
await expect(util.promisify(fs.close)(99999999))
.rejects.toThrow("EBADF");
});
});
describe("copyFile", () => {
it("should copy existing file", async () => {
const source = await createTmpFile();
const destination = tmpFile();
await expect(util.promisify(fs.copyFile)(source, destination))
.resolves.toBeUndefined();
await expect(util.promisify(fs.exists)(destination))
.resolves.toBe(true);
});
it("should fail to copy nonexistent file", async () => {
await expect(util.promisify(fs.copyFile)(tmpFile(), tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("createWriteStream", () => {
it("should write to file", async () => {
const file = tmpFile();
const content = "howdy\nhow\nr\nu";
const stream = fs.createWriteStream(file);
stream.on("open", (fd) => {
expect(fd).toBeDefined();
stream.write(content);
stream.close();
});
await expect(new Promise((resolve): void => {
stream.on("close", async () => {
resolve(await util.promisify(nativeFs.readFile)(file, "utf8"));
});
})).resolves.toBe(content);
});
});
describe("exists", () => {
it("should output file exists", async () => {
await expect(util.promisify(fs.exists)(testFile))
.resolves.toBe(true);
});
it("should output file does not exist", async () => {
await expect(util.promisify(fs.exists)(tmpFile()))
.resolves.toBe(false);
});
});
describe("fchmod", () => {
it("should fchmod existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "r");
await expect(util.promisify(fs.fchmod)(fd, "755"))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to fchmod nonexistent file", async () => {
await expect(util.promisify(fs.fchmod)(2242342, "755"))
.rejects.toThrow("EBADF");
});
});
describe("fchown", () => {
it("should fchown existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "r");
await expect(util.promisify(fs.fchown)(fd, 1, 1))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to fchown nonexistent file", async () => {
await expect(util.promisify(fs.fchown)(99999, 1, 1))
.rejects.toThrow("EBADF");
});
});
describe("fdatasync", () => {
it("should fdatasync existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "r");
await expect(util.promisify(fs.fdatasync)(fd))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to fdatasync nonexistent file", async () => {
await expect(util.promisify(fs.fdatasync)(99999))
.rejects.toThrow("EBADF");
});
});
describe("fstat", () => {
it("should fstat existing file", async () => {
const fd = await util.promisify(nativeFs.open)(testFile, "r");
const stat = await util.promisify(nativeFs.fstat)(fd);
await expect(util.promisify(fs.fstat)(fd))
.resolves.toMatchObject({
size: stat.size,
});
await util.promisify(nativeFs.close)(fd);
});
it("should fail to fstat", async () => {
await expect(util.promisify(fs.fstat)(9999))
.rejects.toThrow("EBADF");
});
});
describe("fsync", () => {
it("should fsync existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "r");
await expect(util.promisify(fs.fsync)(fd))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to fsync nonexistent file", async () => {
await expect(util.promisify(fs.fsync)(99999))
.rejects.toThrow("EBADF");
});
});
describe("ftruncate", () => {
it("should ftruncate existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "w");
await expect(util.promisify(fs.ftruncate)(fd, 1))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to ftruncate nonexistent file", async () => {
await expect(util.promisify(fs.ftruncate)(99999, 9999))
.rejects.toThrow("EBADF");
});
});
describe("futimes", () => {
it("should futimes existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "w");
await expect(util.promisify(fs.futimes)(fd, 1, 1))
.resolves.toBeUndefined();
await util.promisify(nativeFs.close)(fd);
});
it("should fail to futimes nonexistent file", async () => {
await expect(util.promisify(fs.futimes)(99999, 9999, 9999))
.rejects.toThrow("EBADF");
});
});
describe("lchmod", () => {
it("should lchmod existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.lchmod)(file, "755"))
.resolves.toBeUndefined();
});
// TODO: Doesn't fail on my system?
it("should fail to lchmod nonexistent file", async () => {
await expect(util.promisify(fs.lchmod)(tmpFile(), "755"))
.resolves.toBeUndefined();
});
});
describe("lchown", () => {
it("should lchown existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.lchown)(file, 1, 1))
.resolves.toBeUndefined();
});
// TODO: Doesn't fail on my system?
it("should fail to lchown nonexistent file", async () => {
await expect(util.promisify(fs.lchown)(tmpFile(), 1, 1))
.resolves.toBeUndefined();
});
});
describe("link", () => {
it("should link existing file", async () => {
const source = await createTmpFile();
const destination = tmpFile();
await expect(util.promisify(fs.link)(source, destination))
.resolves.toBeUndefined();
await expect(util.promisify(fs.exists)(destination))
.resolves.toBe(true);
});
it("should fail to link nonexistent file", async () => {
await expect(util.promisify(fs.link)(tmpFile(), tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("lstat", () => {
it("should lstat existing file", async () => {
const stat = await util.promisify(nativeFs.lstat)(testFile);
await expect(util.promisify(fs.lstat)(testFile))
.resolves.toMatchObject({
size: stat.size,
});
});
it("should fail to lstat non-existent file", async () => {
await expect(util.promisify(fs.lstat)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("mkdir", () => {
const target = tmpFile();
it("should create nonexistent directory", async () => {
await expect(util.promisify(fs.mkdir)(target))
.resolves.toBeUndefined();
});
it("should fail to create existing directory", async () => {
await expect(util.promisify(fs.mkdir)(target))
.rejects.toThrow("EEXIST");
});
});
describe("mkdtemp", () => {
it("should create temp dir", async () => {
await expect(util.promisify(fs.mkdtemp)(coderDir + "/"))
.resolves.toMatch(/^\/tmp\/coder\/fs\/[a-zA-Z0-9]{6}/);
});
});
describe("open", () => {
it("should open existing file", async () => {
const fd = await util.promisify(fs.open)(testFile, "r");
expect(fd).not.toBeNaN();
await expect(util.promisify(fs.close)(fd))
.resolves.toBeUndefined();
});
it("should fail to open nonexistent file", async () => {
await expect(util.promisify(fs.open)(tmpFile(), "r"))
.rejects.toThrow("ENOENT");
});
});
describe("read", () => {
it("should read existing file", async () => {
const fd = await util.promisify(nativeFs.open)(testFile, "r");
const stat = await util.promisify(nativeFs.fstat)(fd);
const buffer = new Buffer(stat.size);
let bytesRead = 0;
let chunkSize = 2048;
while (bytesRead < stat.size) {
if ((bytesRead + chunkSize) > stat.size) {
chunkSize = stat.size - bytesRead;
}
await util.promisify(fs.read)(fd, buffer, bytesRead, chunkSize, bytesRead);
bytesRead += chunkSize;
}
const content = await util.promisify(nativeFs.readFile)(testFile, "utf8");
expect(buffer.toString()).toEqual(content);
await util.promisify(nativeFs.close)(fd);
});
it("should fail to read nonexistent file", async () => {
await expect(util.promisify(fs.read)(99999, new Buffer(10), 9999, 999, 999))
.rejects.toThrow("EBADF");
});
});
describe("readFile", () => {
it("should read existing file", async () => {
const content = await util.promisify(nativeFs.readFile)(testFile, "utf8");
await expect(util.promisify(fs.readFile)(testFile, "utf8"))
.resolves.toEqual(content);
});
it("should fail to read nonexistent file", async () => {
await expect(util.promisify(fs.readFile)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("readdir", () => {
it("should read existing directory", async () => {
const paths = await util.promisify(nativeFs.readdir)(coderDir);
await expect(util.promisify(fs.readdir)(coderDir))
.resolves.toEqual(paths);
});
it("should fail to read nonexistent directory", async () => {
await expect(util.promisify(fs.readdir)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("readlink", () => {
it("should read existing link", async () => {
const source = await createTmpFile();
const destination = tmpFile();
await util.promisify(nativeFs.symlink)(source, destination);
await expect(util.promisify(fs.readlink)(destination))
.resolves.toBe(source);
});
it("should fail to read nonexistent link", async () => {
await expect(util.promisify(fs.readlink)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("realpath", () => {
it("should read real path of existing file", async () => {
const source = await createTmpFile();
const destination = tmpFile();
nativeFs.symlinkSync(source, destination);
await expect(util.promisify(fs.realpath)(destination))
.resolves.toBe(source);
});
it("should fail to read real path of nonexistent file", async () => {
await expect(util.promisify(fs.realpath)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("rename", () => {
it("should rename existing file", async () => {
const source = await createTmpFile();
const destination = tmpFile();
await expect(util.promisify(fs.rename)(source, destination))
.resolves.toBeUndefined();
await expect(util.promisify(nativeFs.exists)(source))
.resolves.toBe(false);
await expect(util.promisify(nativeFs.exists)(destination))
.resolves.toBe(true);
});
it("should fail to rename nonexistent file", async () => {
await expect(util.promisify(fs.rename)(tmpFile(), tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("rmdir", () => {
it("should rmdir existing directory", async () => {
const dir = tmpFile();
await util.promisify(nativeFs.mkdir)(dir);
await expect(util.promisify(fs.rmdir)(dir))
.resolves.toBeUndefined();
await expect(util.promisify(nativeFs.exists)(dir))
.resolves.toBe(false);
});
it("should fail to rmdir nonexistent directory", async () => {
await expect(util.promisify(fs.rmdir)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("stat", () => {
it("should stat existing file", async () => {
const nativeStat = await util.promisify(nativeFs.stat)(testFile);
const stat = await util.promisify(fs.stat)(testFile);
expect(stat).toMatchObject({
size: nativeStat.size,
});
expect(stat.isFile()).toBe(true);
});
it("should stat existing folder", async () => {
const dir = tmpFile();
await util.promisify(nativeFs.mkdir)(dir);
const nativeStat = await util.promisify(nativeFs.stat)(dir);
const stat = await util.promisify(fs.stat)(dir);
expect(stat).toMatchObject({
size: nativeStat.size,
});
expect(stat.isDirectory()).toBe(true);
});
it("should fail to stat nonexistent file", async () => {
const error = await util.promisify(fs.stat)(tmpFile()).catch((e) => e);
expect(error.message).toContain("ENOENT");
expect(error.code).toBe("ENOENT");
});
});
describe("symlink", () => {
it("should symlink existing file", async () => {
const source = await createTmpFile();
const destination = tmpFile();
await expect(util.promisify(fs.symlink)(source, destination))
.resolves.toBeUndefined();
expect(util.promisify(nativeFs.exists)(source))
.resolves.toBe(true);
});
// TODO: Seems to be happy to do this on my system?
it("should fail to symlink nonexistent file", async () => {
await expect(util.promisify(fs.symlink)(tmpFile(), tmpFile()))
.resolves.toBeUndefined();
});
});
describe("truncate", () => {
it("should truncate existing file", async () => {
const file = tmpFile();
await util.promisify(nativeFs.writeFile)(file, "hiiiiii");
await expect(util.promisify(fs.truncate)(file, 2))
.resolves.toBeUndefined();
await expect(util.promisify(nativeFs.readFile)(file, "utf8"))
.resolves.toBe("hi");
});
it("should fail to truncate nonexistent file", async () => {
await expect(util.promisify(fs.truncate)(tmpFile(), 0))
.rejects.toThrow("ENOENT");
});
});
describe("unlink", () => {
it("should unlink existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.unlink)(file))
.resolves.toBeUndefined();
expect(util.promisify(nativeFs.exists)(file))
.resolves.toBe(false);
});
it("should fail to unlink nonexistent file", async () => {
await expect(util.promisify(fs.unlink)(tmpFile()))
.rejects.toThrow("ENOENT");
});
});
describe("utimes", () => {
it("should update times on existing file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.utimes)(file, 100, 100))
.resolves.toBeUndefined();
});
it("should fail to update times on nonexistent file", async () => {
await expect(util.promisify(fs.utimes)(tmpFile(), 100, 100))
.rejects.toThrow("ENOENT");
});
});
describe("write", () => {
it("should write to existing file", async () => {
const file = await createTmpFile();
const fd = await util.promisify(nativeFs.open)(file, "w");
await expect(util.promisify(fs.write)(fd, Buffer.from("hi")))
.resolves.toBe(2);
await expect(util.promisify(nativeFs.readFile)(file, "utf8"))
.resolves.toBe("hi");
await util.promisify(nativeFs.close)(fd);
});
it("should fail to write to nonexistent file", async () => {
await expect(util.promisify(fs.write)(100000, Buffer.from("wowow")))
.rejects.toThrow("EBADF");
});
});
describe("writeFile", () => {
it("should write file", async () => {
const file = await createTmpFile();
await expect(util.promisify(fs.writeFile)(file, "howdy"))
.resolves.toBeUndefined();
await expect(util.promisify(nativeFs.readFile)(file, "utf8"))
.resolves.toBe("howdy");
});
});
});