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nodejs/test/simple/test-child-process-stdin.js
Charlie McConnell c7b8073afc child_process: Separate 'close' event from 'exit'
Currently, a child process does not emit the 'exit' event until 'close' events
have been received on all three of the child's stdio streams.  This change makes
the child object emit 'exit' when the child exits, and a new 'close' event when
all stdio streams are closed.
2012-03-15 17:07:11 -07:00

90 lines
2.4 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.
var common = require('../common');
var assert = require('assert');
var spawn = require('child_process').spawn;
var is_windows = process.platform === 'win32';
var cat = spawn(is_windows ? 'more' : 'cat');
cat.stdin.write('hello');
cat.stdin.write(' ');
cat.stdin.write('world');
assert.ok(cat.stdin.writable);
assert.ok(!cat.stdin.readable);
cat.stdin.end();
var response = '';
var exitStatus = -1;
var closed = false;
var gotStdoutEOF = false;
cat.stdout.setEncoding('utf8');
cat.stdout.on('data', function(chunk) {
console.log('stdout: ' + chunk);
response += chunk;
});
cat.stdout.on('end', function() {
gotStdoutEOF = true;
});
var gotStderrEOF = false;
cat.stderr.on('data', function(chunk) {
// shouldn't get any stderr output
assert.ok(false);
});
cat.stderr.on('end', function(chunk) {
gotStderrEOF = true;
});
cat.on('exit', function(status) {
console.log('exit event');
exitStatus = status;
});
cat.on('close', function () {
closed = true;
if (is_windows) {
assert.equal('hello world\r\n', response);
} else {
assert.equal('hello world', response);
}
});
process.on('exit', function() {
assert.equal(0, exitStatus);
assert(closed);
if (is_windows) {
assert.equal('hello world\r\n', response);
} else {
assert.equal('hello world', response);
}
});