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nodejs/test/parallel/test-child-process-flush-stdio.js
Sakthipriyan Vairamani 612307564b test: make import common as the first line
The `test/common` module has the capability to identify if any variable
is leaked to the global scope and fail the test. So that has to be
imported at the beginning.

PR-URL: https://github.com/nodejs/node/pull/7786
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2016-07-21 16:39:21 -07:00

34 lines
894 B
JavaScript

'use strict';
const common = require('../common');
const cp = require('child_process');
const assert = require('assert');
// Windows' `echo` command is a built-in shell command and not an external
// executable like on *nix
const opts = { shell: common.isWindows };
const p = cp.spawn('echo', [], opts);
p.on('close', common.mustCall(function(code, signal) {
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
spawnWithReadable();
}));
p.stdout.read();
function spawnWithReadable() {
const buffer = [];
const p = cp.spawn('echo', ['123'], opts);
p.on('close', common.mustCall(function(code, signal) {
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
assert.strictEqual(Buffer.concat(buffer).toString().trim(), '123');
}));
p.stdout.on('readable', function() {
let buf;
while (buf = this.read())
buffer.push(buf);
});
}