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test: improve test-child-process-stdout-flush

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Changed vars to const / let, functions to arrow functions and a
mustCall where appropriate.

PR-URL: https://github.com/nodejs/node/pull/8581
Reviewed-By: Robert Jefe Lindstaedt <robert.lindstaedt@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ilkka Myller <ilkka.myller@nodefield.com>
Reviewed-By: Prince John Wesley <princejohnwesley@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Robert Jefe Lindstaedt <robert.lindstaedt@gmail.com>
This commit is contained in:
Wietse Venema 2016-09-17 10:40:10 +02:00 committed by James M Snell
parent 2b5acda7a2
commit 57a5136e96
1 changed files with 15 additions and 18 deletions
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33
test/parallel/test-child-process-stdout-flush.js
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@ -1,29 +1,26 @@
'use strict';
var common = require('../common');
var assert = require('assert');
var path = require('path');
var spawn = require('child_process').spawn;
var sub = path.join(common.fixturesDir, 'print-chars.js');
const common = require('../common');
const assert = require('assert');
const path = require('path');
const spawn = require('child_process').spawn;
const sub = path.join(common.fixturesDir, 'print-chars.js');
var n = 500000;
const n = 500000;
var child = spawn(process.argv[0], [sub, n]);
const child = spawn(process.argv[0], [sub, n]);
var count = 0;
let count = 0;
child.stderr.setEncoding('utf8');
child.stderr.on('data', function(data) {
console.log('parent stderr: ' + data);
assert.ok(false);
});
child.stderr.on('data', common.fail);
child.stdout.setEncoding('utf8');
child.stdout.on('data', function(data) {
child.stdout.on('data', (data) => {
count += data.length;
console.log(count);
});
child.on('close', function(data) {
assert.equal(n, count);
console.log('okay');
});
child.on('close', common.mustCall((code, signal) => {
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
assert.strictEqual(n, count);
}));