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nodejs/test/parallel/test-http-get-pipeline-problem.js
Roman Reiss f29762f4dd test: enable linting for tests
Enable linting for the test directory. A number of changes was made so
all tests conform the current rules used by lib and src directories. The
only exception for tests is that unreachable (dead) code is allowed.

test-fs-non-number-arguments-throw had to be excluded from the changes
because of a weird issue on Windows CI.

PR-URL: https://github.com/nodejs/io.js/pull/1721
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2015-05-19 21:21:27 +02:00

89 lines
2.2 KiB
JavaScript

'use strict';
// We are demonstrating a problem with http.get when queueing up many
// transfers. The server simply introduces some delay and sends a file.
// Note this is demonstrated with connection: close.
var common = require('../common');
var assert = require('assert');
var http = require('http');
var fs = require('fs');
var image = fs.readFileSync(common.fixturesDir + '/person.jpg');
console.log('image.length = ' + image.length);
var total = 100;
var requests = 0, responses = 0;
var server = http.Server(function(req, res) {
if (++requests == total) {
server.close();
}
setTimeout(function() {
res.writeHead(200, {
'content-type': 'image/jpeg',
'connection': 'close',
'content-length': image.length
});
res.end(image);
}, 1);
});
server.listen(common.PORT, function() {
for (var i = 0; i < total; i++) {
(function() {
var x = i;
var opts = {
port: common.PORT,
headers: { connection: 'close' }
};
http.get(opts, function(res) {
console.error('recv ' + x);
var s = fs.createWriteStream(common.tmpDir + '/' + x + '.jpg');
res.pipe(s);
// TODO there should be a callback to pipe() that will allow
// us to get a callback when the pipe is finished.
res.on('end', function() {
console.error('done ' + x);
if (++responses == total) {
s.on('close', checkFiles);
}
});
}).on('error', function(e) {
console.error('error! ', e.message);
throw e;
});
})();
}
});
var checkedFiles = false;
function checkFiles() {
// Should see 1.jpg, 2.jpg, ..., 100.jpg in tmpDir
var files = fs.readdirSync(common.tmpDir);
assert(total <= files.length);
for (var i = 0; i < total; i++) {
var fn = i + '.jpg';
assert.ok(files.indexOf(fn) >= 0, "couldn't find '" + fn + "'");
var stat = fs.statSync(common.tmpDir + '/' + fn);
assert.equal(image.length, stat.size,
"size doesn't match on '" + fn +
"'. Got " + stat.size + ' bytes');
}
checkedFiles = true;
}
process.on('exit', function() {
assert.equal(total, requests);
assert.equal(total, responses);
assert.ok(checkedFiles);
});