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test: add fs-assert-encoding's test

Check the error of `assertEncoding`.
Confirmed in every place being used.(a place where `getoptions` is used)
assetEncoding: https://github.com/nodejs/node/blob/521767c88605cb6481ea98f396924e55f9dd22f4/lib/internal/fs.js#L18

PR-URL: #10913
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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hiroppy authored and italoacasas committed Jan 20, 2017
1 parent c5210b2 commit 8ac6a709b9a0d893a5296bf5e33f85111e093667
Showing with 76 additions and 0 deletions.
  1. +76 −0 test/parallel/test-fs-assert-encoding-error.js
@@ -0,0 +1,76 @@
'use strict';
require('../common');
const assert = require('assert');
const fs = require('fs');
const options = 'test';
const noop = () => {};
const unknownEncodingMessage = /^Error: Unknown encoding: test$/;
assert.throws(() => {
fs.readFile('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.readFileSync('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.readdir('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.readdirSync('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.readlink('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.readlinkSync('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.writeFile('path', 'data', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.writeFileSync('path', 'data', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.appendFile('path', 'data', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.appendFileSync('path', 'data', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.watch('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.realpath('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.realpathSync('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.mkdtemp('path', options, noop);
}, unknownEncodingMessage);
assert.throws(() => {
fs.mkdtempSync('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.ReadStream('path', options);
}, unknownEncodingMessage);
assert.throws(() => {
fs.WriteStream('path', options);
}, unknownEncodingMessage);

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