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const fs = require('fs');// const { init, WASI } = require('../');const { init, WASI } = require('../dist/Library.cjs.js');

async function initWasi(moduleBytes, config) {  let wasi = new WASI(config);  const module = await WebAssembly.compile(moduleBytes);  await wasi.instantiate(module, {});  return wasi;}
beforeAll(async () => {  await init();});
test('envvar works', async () => {  let wasi = await initWasi(fs.readFileSync(__dirname + '/envvar.wasm'), {    env: {      DOG: "X",      TEST: "VALUE",      TEST2: "VALUE2"    }  });  let code = wasi.start();  expect(wasi.getStdoutString()).toBe(`Env vars:DOG=XTEST2=VALUE2TEST=VALUEDOG Ok("X")DOG_TYPE Err(NotPresent)SET VAR Ok("HELLO")`);});
test('demo works', async () => {  let contents = fs.readFileSync(__dirname + '/demo.wasm');  let wasi = await initWasi(contents, {});  let code = wasi.start();  expect(wasi.getStdoutString()).toBe("hello world\n");});
test('piping works', async () => {  let contents = fs.readFileSync(__dirname + '/pipe_reverse.wasm');  let wasi = await initWasi(contents, {});  wasi.setStdinString("Hello World!");  let code = wasi.start();  expect(wasi.getStdoutString()).toBe("!dlroW olleH\n");});
test('mapdir works', async () => {  let contents = fs.readFileSync(__dirname + '/mapdir.wasm');  let wasi = await initWasi(contents, {});  wasi.fs.createDir("/a");  wasi.fs.createDir("/b");  let file = wasi.fs.open("/file", {read: true, write: true, create: true});  file.writeString("fileContents");  file.seek(0);  // console.log(file.readString());  // console.log(wasi.fs.readDir("/"));  let code = wasi.start();  expect(wasi.getStdoutString()).toBe(`"./a"\n"./b"\n"./file"\n`);});