node/test/parallel/test-fs-non-number-arguments-throw.js
Michaël Zasso b98813d97c test: refactor test-fs-non-number-arguments-throw
* Add RegExp arguments to throws assertions.
* Use common.mustCall for emitter callback.

PR-URL: https://github.com/nodejs/node/pull/9844
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2016-12-21 14:33:59 -05:00

34 lines
1.2 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const tempFile = path.join(common.tmpDir, 'fs-non-number-arguments-throw');
common.refreshTmpDir();
fs.writeFileSync(tempFile, 'abc\ndef');
// a sanity check when using numbers instead of strings
const sanity = 'def';
const saneEmitter = fs.createReadStream(tempFile, { start: 4, end: 6 });
assert.throws(function() {
fs.createReadStream(tempFile, { start: '4', end: 6 });
}, /^TypeError: start must be a Number$/,
"start as string didn't throw an error for createReadStream");
assert.throws(function() {
fs.createReadStream(tempFile, { start: 4, end: '6' });
}, /^TypeError: end must be a Number$/,
"end as string didn't throw an error for createReadStream");
assert.throws(function() {
fs.createWriteStream(tempFile, { start: '4' });
}, /^TypeError: start must be a Number$/,
"start as string didn't throw an error for createWriteStream");
saneEmitter.on('data', common.mustCall(function(data) {
assert.strictEqual(sanity, data.toString('utf8'), 'read ' +
data.toString('utf8') + ' instead of ' + sanity);
}));