nodejs-mozilla/test/pummel/test-child-process-spawn-lo...

61 lines
1.9 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const assert = require('assert');
const spawn = require('child_process').spawn;
const SIZE = 1000 * 1024;
const N = 40;
let finished = false;
function doSpawn(i) {
const child = spawn('python', ['-c', `print ${SIZE} * "C"`]);
let count = 0;
child.stdout.setEncoding('ascii');
child.stdout.on('data', (chunk) => {
count += chunk.length;
});
child.stderr.on('data', (chunk) => {
console.log(`stderr: ${chunk}`);
});
child.on('close', () => {
// + 1 for \n or + 2 for \r\n on Windows
assert.strictEqual(count, SIZE + (common.isWindows ? 2 : 1));
if (i < N) {
doSpawn(i + 1);
} else {
finished = true;
}
});
}
doSpawn(0);
process.on('exit', () => {
assert.ok(finished);
});