node/test/parallel/test-child-process-stdin.js
James M Snell 4f2e372716 test: add common.noop, default for common.mustCall()
Export a new common.noop no-operation function for general use.
Allow using common.mustCall() without a fn argument to simplify
test cases.

Replace various non-op functions throughout tests with common.noop

PR-URL: https://github.com/nodejs/node/pull/12027
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
2017-03-26 12:47:15 -07:00

59 lines
1.9 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
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//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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'use strict';
const common = require('../common');
const assert = require('assert');
const spawn = require('child_process').spawn;
const cat = spawn('cat');
cat.stdin.write('hello');
cat.stdin.write(' ');
cat.stdin.write('world');
assert.strictEqual(true, cat.stdin.writable);
assert.strictEqual(false, cat.stdin.readable);
cat.stdin.end();
let response = '';
cat.stdout.setEncoding('utf8');
cat.stdout.on('data', function(chunk) {
console.log('stdout: ' + chunk);
response += chunk;
});
cat.stdout.on('end', common.mustCall());
cat.stderr.on('data', common.mustNotCall());
cat.stderr.on('end', common.mustCall());
cat.on('exit', common.mustCall(function(status) {
assert.strictEqual(0, status);
}));
cat.on('close', common.mustCall(function() {
assert.strictEqual('hello world', response);
}));