import { describe, expect, test } from "bun:test"import os from "node:os"import path from "node:path"import { mkdtemp, mkdir, rm } from "node:fs/promises"import { Filesystem } from "../../src/util/filesystem" describe("util.filesystem", () => {  test("exists() is true for files and directories", async () => {    const tmp = await mkdtemp(path.join(os.tmpdir(), "openscience-filesystem-"))    const dir = path.join(tmp, "dir")    const file = path.join(tmp, "file.txt")    const missing = path.join(tmp, "missing")     await mkdir(dir, { recursive: true })    await Bun.write(file, "hello")     const cases = await Promise.all([Filesystem.exists(dir), Filesystem.exists(file), Filesystem.exists(missing)])     expect(cases).toEqual([true, true, false])     await rm(tmp, { recursive: true, force: true })  })   test("isDir() is true only for directories", async () => {    const tmp = await mkdtemp(path.join(os.tmpdir(), "openscience-filesystem-"))    const dir = path.join(tmp, "dir")    const file = path.join(tmp, "file.txt")    const missing = path.join(tmp, "missing")     await mkdir(dir, { recursive: true })    await Bun.write(file, "hello")     const cases = await Promise.all([Filesystem.isDir(dir), Filesystem.isDir(file), Filesystem.isDir(missing)])     expect(cases).toEqual([true, false, false])     await rm(tmp, { recursive: true, force: true })  })})