denoland-deno/tests/node_compat/test/parallel/test-fs-readfile-empty.js

// deno-fmt-ignore-file
// deno-lint-ignore-file

// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.

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'use strict';

// Trivial test of fs.readFile on an empty file.
const common = require('../common');
const fs = require('fs');
const assert = require('assert');
const fixtures = require('../common/fixtures');

const fn = fixtures.path('empty.txt');

fs.readFile(fn, common.mustCall((err, data) => {
  assert.ok(data);
}));

fs.readFile(fn, 'utf8', common.mustCall((err, data) => {
  assert.strictEqual(data, '');
}));

fs.readFile(fn, { encoding: 'utf8' }, common.mustCall((err, data) => {
  assert.strictEqual(data, '');
}));

assert.ok(fs.readFileSync(fn));
assert.strictEqual(fs.readFileSync(fn, 'utf8'), '');