Add tests for ol.renderer.vector

test/spec/ol/render/vector.test.js

@@ -0,0 +1,65 @@
+goog.provide('ol.test.renderer.vector');
+
+describe('ol.renderer.vector', function() {
+  describe('#renderFeature', function() {
+    var replayGroup;
+
+    beforeEach(function() {
+      replayGroup = new ol.render.canvas.ReplayGroup(1);
+    });
+
+    describe('call multiple times', function() {
+
+      it('does not set multiple listeners', function() {
+        var iconStyle = new ol.style.Icon({
+          src: 'http://example.com/icon.png'
+        });
+
+        var iconImage = iconStyle.iconImage_;
+
+        var iconStyleLoadSpy = sinon.stub(iconStyle, 'load', function() {
+          iconImage.imageState_ = ol.style.ImageState.LOADING;
+        });
+
+        var style = new ol.style.Style({
+          image: iconStyle
+        });
+
+        var feature = new ol.Feature();
+
+        var listener = function() {};
+        var listenerThis = {};
+        var listeners;
+
+        // call #1
+        ol.renderer.vector.renderFeature(replayGroup, feature,
+            style, 1, feature, listener, listenerThis);
+
+        expect(iconStyleLoadSpy.calledOnce).to.be.ok();
+        listeners = goog.events.getListeners(
+            iconStyle.iconImage_, goog.events.EventType.CHANGE, false);
+        expect(listeners.length).to.eql(1);
+
+        // call #2
+        ol.renderer.vector.renderFeature(replayGroup, feature,
+            style, 1, feature, listener, listenerThis);
+
+        expect(iconStyleLoadSpy.calledOnce).to.be.ok();
+        listeners = goog.events.getListeners(
+            iconStyle.iconImage_, goog.events.EventType.CHANGE, false);
+        expect(listeners.length).to.eql(1);
+      });
+
+    });
+
+  });
+});
+
+goog.require('goog.events');
+goog.require('goog.events.EventType');
+goog.require('ol.render.canvas.ReplayGroup');
+goog.require('ol.renderer.vector');
+goog.require('ol.style.Icon');
+goog.require('ol.style.ImageState');
+goog.require('ol.style.Style');
+goog.require('ol.Feature');