From 44d23b59938b4021155b0e029c16c045ac84e2b2 Mon Sep 17 00:00:00 2001
From: Anand Thakker <vestibule@anandthakker.net>
Date: Fri, 12 Aug 2016 00:34:40 -0400
Subject: [PATCH] Add map load benchmark

---
 bench/benchmarks/map_load.js | 40 ++++++++++++++++++++++++++++++++++++
 bench/index.js               |  1 +
 2 files changed, 41 insertions(+)
 create mode 100644 bench/benchmarks/map_load.js

diff --git a/bench/benchmarks/map_load.js b/bench/benchmarks/map_load.js
new file mode 100644
index 00000000000..01de2faefe4
--- /dev/null
+++ b/bench/benchmarks/map_load.js
@@ -0,0 +1,40 @@
+'use strict';
+
+var Evented = require('../../js/util/evented');
+var util = require('../../js/util/util');
+var formatNumber = require('../lib/format_number');
+
+module.exports = function(options) {
+    var evented = util.extend({}, Evented);
+
+    var mapsOnPage = 6;
+
+    evented.fire('log', { message: 'Creating ' + mapsOnPage + ' maps' });
+
+    var loaded = 0;
+    var start = Date.now();
+    for (var i = 0; i < mapsOnPage; i++) {
+        var map = options.createMap({});
+        map.on('load', onload.bind(null, map));
+        map.on('error', function (err) {
+            evented.fire('error', err);
+        });
+    }
+
+    function onload () {
+        if (++loaded >= mapsOnPage) {
+            var duration = Date.now() - start;
+            evented.fire('end', {
+                message: formatNumber(duration) + ' ms, loaded ' + mapsOnPage + ' maps.',
+                score: duration
+            });
+            done();
+        }
+    }
+
+    function done () {
+    }
+
+    return evented;
+};
+
diff --git a/bench/index.js b/bench/index.js
index b6d11c43111..40895d79f7d 100644
--- a/bench/index.js
+++ b/bench/index.js
@@ -198,6 +198,7 @@ var BenchmarksView = React.createClass({
 });
 
 var benchmarks = {
+    'load-multiple-maps': require('./benchmarks/map_load'),
     buffer: require('./benchmarks/buffer'),
     fps: require('./benchmarks/fps'),
     'frame-duration': require('./benchmarks/frame_duration'),