Add loader and strategy to ol.source.Vector

test/spec/ol/data/point.json

@@ -0,0 +1 @@
+{"type":"FeatureCollection","features":[{"type":"Feature","id":"01","properties":{},"geometry":{"type":"Point","coordinates":[-87.359296,35.001181]}}]}

test/spec/ol/featureloader.test.js

@@ -0,0 +1,30 @@
+goog.provide('ol.test.featureloader');
+
+describe('ol.featureloader', function() {
+  describe('ol.featureloader.xhr', function() {
+    var loader;
+    var source;
+
+    beforeEach(function() {
+      var url = 'spec/ol/data/point.json';
+      var format = new ol.format.GeoJSON();
+
+      loader = ol.featureloader.xhr(url, format);
+      source = new ol.source.Vector();
+    });
+
+    it('adds features to the source', function(done) {
+      source.on(ol.source.VectorEventType.ADDFEATURE, function(e) {
+        expect(source.getFeatures().length).to.be.greaterThan(0);
+        done();
+      });
+      loader.call(source, [], 1, 'EPSG:3857');
+    });
+
+  });
+});
+
+goog.require('ol.featureloader');
+goog.require('ol.format.GeoJSON');
+goog.require('ol.source.Vector');
+goog.require('ol.source.VectorEventType');