12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849
const { test } = Deno;import { readFile, readFileSync } from "./_fs_readFile.ts";import * as path from "../../path/mod.ts";import { assertEquals, assert } from "../../testing/asserts.ts";
const testData = path.resolve(  path.join("node", "_fs", "testdata", "hello.txt"));
test(async function readFileSuccess() {  const data = await new Promise((res, rej) => {    readFile(testData, (err, data) => {      if (err) {        rej(err);      }      res(data);    });  });
  assert(data instanceof Uint8Array);  assertEquals(new TextDecoder().decode(data as Uint8Array), "hello world");});
test(async function readFileEncodeUtf8Success() {  const data = await new Promise((res, rej) => {    readFile(testData, { encoding: "utf8" }, (err, data) => {      if (err) {        rej(err);      }      res(data);    });  });
  assertEquals(typeof data, "string");  assertEquals(data as string, "hello world");});
test(function readFileSyncSuccess() {  const data = readFileSync(testData);  assert(data instanceof Uint8Array);  assertEquals(new TextDecoder().decode(data as Uint8Array), "hello world");});
test(function readFileEncodeUtf8Success() {  const data = readFileSync(testData, { encoding: "utf8" });  assertEquals(typeof data, "string");  assertEquals(data as string, "hello world");});