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graphite_tests_statssuffix.js
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graphite_tests_statssuffix.js
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var fs = require('fs'),
net = require('net'),
temp = require('temp'),
spawn = require('child_process').spawn,
util = require('util'),
urlparse = require('url').parse,
_ = require('underscore'),
dgram = require('dgram'),
qsparse = require('querystring').parse,
http = require('http');
var writeconfig = function(text,worker,cb,obj){
temp.open({suffix: '-statsdconf.js'}, function(err, info) {
if (err) throw err;
fs.writeSync(info.fd, text);
fs.close(info.fd, function(err) {
if (err) throw err;
worker(info.path,cb,obj);
});
});
}
var array_contents_are_equal = function(first,second){
var intlen = _.intersection(first,second).length;
var unlen = _.union(first,second).length;
return (intlen == unlen) && (intlen == first.length);
}
var statsd_send = function(data,sock,host,port,cb){
send_data = new Buffer(data);
sock.send(send_data,0,send_data.length,port,host,function(err,bytes){
if (err) {
throw err;
}
cb();
});
}
// keep collecting data until a specified timeout period has elapsed
// this will let us capture all data chunks so we don't miss one
var collect_for = function(server,timeout,cb){
var received = [];
var in_flight = 0;
var timed_out = false;
var collector = function(req,res){
in_flight += 1;
var body = '';
req.on('data',function(data){ body += data; });
req.on('end',function(){
received = received.concat(body.split("\n"));
in_flight -= 1;
if((in_flight < 1) && timed_out){
server.removeListener('request',collector);
cb(received);
}
});
}
setTimeout(function (){
timed_out = true;
if((in_flight < 1)) {
server.removeListener('connection',collector);
cb(received);
}
},timeout);
server.on('connection',collector);
}
module.exports = {
setUp: function (callback) {
this.testport = 31337;
this.myflush = 200;
var configfile = "{graphService: \"graphite\"\n\
, batch: 200 \n\
, flushInterval: " + this.myflush + " \n\
, percentThreshold: 90\n\
, port: 8125\n\
, dumpMessages: false \n\
, debug: false\n\
, graphite: { legacyNamespace: false, globalSuffix: \"statssuffix\" }\n\
, graphitePort: " + this.testport + "\n\
, graphiteHost: \"127.0.0.1\"}";
this.acceptor = net.createServer();
this.acceptor.listen(this.testport);
this.sock = dgram.createSocket('udp4');
this.server_up = true;
this.ok_to_die = false;
this.exit_callback_callback = process.exit;
writeconfig(configfile,function(path,cb,obj){
obj.path = path;
obj.server = spawn('node',['stats.js', path]);
obj.exit_callback = function (code) {
obj.server_up = false;
if(!obj.ok_to_die){
console.log('node server unexpectedly quit with code: ' + code);
process.exit(1);
}
else {
obj.exit_callback_callback();
}
};
obj.server.on('exit', obj.exit_callback);
obj.server.stderr.on('data', function (data) {
console.log('stderr: ' + data.toString().replace(/\n$/,''));
});
/*
obj.server.stdout.on('data', function (data) {
console.log('stdout: ' + data.toString().replace(/\n$/,''));
});
*/
obj.server.stdout.on('data', function (data) {
// wait until server is up before we finish setUp
if (data.toString().match(/server is up/)) {
cb();
}
});
},callback,this);
},
tearDown: function (callback) {
this.sock.close();
this.acceptor.close();
this.ok_to_die = true;
if(this.server_up){
this.exit_callback_callback = callback;
this.server.kill();
} else {
callback();
}
},
send_well_formed_posts: function (test) {
test.expect(2);
// we should integrate a timeout into this
this.acceptor.once('connection',function(c){
var body = '';
c.on('data',function(d){ body += d; });
c.on('end',function(){
var rows = body.split("\n");
var entries = _.map(rows, function(x) {
var chunks = x.split(' ');
var data = {};
data[chunks[0]] = chunks[1];
return data;
});
test.ok(_.include(_.map(entries,function(x) { return _.keys(x)[0] }),'stats.statsd.numStats.statssuffix'),'graphite output includes numStats');
test.equal(_.find(entries, function(x) { return _.keys(x)[0] == 'stats.statsd.numStats.statssuffix' })['stats.statsd.numStats.statssuffix'],3);
test.done();
});
});
},
send_malformed_post: function (test) {
test.expect(3);
var testvalue = 1;
var me = this;
this.acceptor.once('connection',function(c){
statsd_send('a_bad_test_value|z',me.sock,'127.0.0.1',8125,function(){
collect_for(me.acceptor,me.myflush*2,function(strings){
test.ok(strings.length > 0,'should receive some data');
var hashes = _.map(strings, function(x) {
var chunks = x.split(' ');
var data = {};
data[chunks[0]] = chunks[1];
return data;
});
var numstat_test = function(post){
var mykey = 'stats.statsd.numStats.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == 4);
};
test.ok(_.any(hashes,numstat_test), 'numStats.statssuffix should be 4');
var bad_lines_seen_value_test = function(post){
var mykey = 'stats.counters.statsd.bad_lines_seen.count.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == testvalue);
};
test.ok(_.any(hashes,bad_lines_seen_value_test), 'stats.counters.statsd.bad_lines_seen.count.statssuffix should be ' + testvalue );
test.done();
});
});
});
},
timers_are_valid: function (test) {
test.expect(3);
var testvalue = 100;
var me = this;
this.acceptor.once('connection',function(c){
statsd_send('a_test_value:' + testvalue + '|ms',me.sock,'127.0.0.1',8125,function(){
collect_for(me.acceptor,me.myflush*2,function(strings){
test.ok(strings.length > 0,'should receive some data');
var hashes = _.map(strings, function(x) {
var chunks = x.split(' ');
var data = {};
data[chunks[0]] = chunks[1];
return data;
});
var numstat_test = function(post){
var mykey = 'stats.statsd.numStats.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == 5);
};
test.ok(_.any(hashes,numstat_test), 'stats.statsd.numStats.statssuffix should be 5');
var testtimervalue_test = function(post){
var mykey = 'stats.timers.a_test_value.mean_90.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == testvalue);
};
test.ok(_.any(hashes,testtimervalue_test), 'stats.timers.a_test_value.mean.statssuffix should be ' + testvalue);
test.done();
});
});
});
},
counts_are_valid: function (test) {
test.expect(4);
var testvalue = 100;
var me = this;
this.acceptor.once('connection',function(c){
statsd_send('a_test_value:' + testvalue + '|c',me.sock,'127.0.0.1',8125,function(){
collect_for(me.acceptor,me.myflush*2,function(strings){
test.ok(strings.length > 0,'should receive some data');
var hashes = _.map(strings, function(x) {
var chunks = x.split(' ');
var data = {};
data[chunks[0]] = chunks[1];
return data;
});
var numstat_test = function(post){
var mykey = 'stats.statsd.numStats.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == 5);
};
test.ok(_.any(hashes,numstat_test), 'numStats.statssuffix should be 5');
var testavgvalue_test = function(post){
var mykey = 'stats.counters.a_test_value.rate.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == (testvalue/(me.myflush / 1000)));
};
test.ok(_.any(hashes,testavgvalue_test), 'a_test_value.rate should be ' + (testvalue/(me.myflush / 1000)));
var testcountvalue_test = function(post){
var mykey = 'stats.counters.a_test_value.count.statssuffix';
return _.include(_.keys(post),mykey) && (post[mykey] == testvalue);
};
test.ok(_.any(hashes,testcountvalue_test), 'a_test_value.count should be ' + testvalue);
test.done();
});
});
});
}
}