Set constants of KML format even if a default style is provided

src/ol/format/kml.js

@@ -51,6 +51,10 @@ ol.format.KML = function(opt_options) {
 
   ol.format.XMLFeature.call(this);
 
+  if (!ol.format.KML.DEFAULT_STYLE_ARRAY_) {
+    ol.format.KML.createStyleDefaults_();
+  }
+
   /**
    * @inheritDoc
    */
@@ -61,8 +65,7 @@ ol.format.KML = function(opt_options) {
    * @type {Array.<ol.style.Style>}
    */
   this.defaultStyle_ = options.defaultStyle ?
-      options.defaultStyle :
+      options.defaultStyle : ol.format.KML.DEFAULT_STYLE_ARRAY_;
-      (ol.format.KML.DEFAULT_STYLE_ARRAY_ || ol.format.KML.createStyleDefaults_());
 
   /**
    * @private

test/spec/ol/format/kml.test.js

@@ -26,10 +26,56 @@ goog.require('ol.xml');
 describe('ol.format.KML', function() {
 
   var format;
+
+  describe('using defaultStyle', function() {
+
+    var dfltStyle = new ol.style.Style();
+
+    beforeEach(function() {
+      format = new ol.format.KML({
+        defaultStyle: [dfltStyle]
+      });
+    });
+
+    it('set constant variables', function() {
+      expect(ol.format.KML.DEFAULT_STYLE_ARRAY_).to.be.an(Array);
+    });
+
+    describe('#readFeatures', function() {
+
+      it('can apply a default style to a feature', function() {
+        var text =
+            '<kml xmlns="http://earth.google.com/kml/2.2">' +
+            '  <Document>' +
+            '    <Placemark/>' +
+            '  </Document>' +
+            '</kml>';
+        var fs = format.readFeatures(text);
+        expect(fs).to.have.length(1);
+        var f = fs[0];
+        expect(f).to.be.an(ol.Feature);
+        var styleFunction = f.getStyleFunction();
+        expect(styleFunction).not.to.be(undefined);
+        var styleArray = styleFunction.call(f, 0);
+        expect(styleArray).to.be.an(Array);
+        expect(styleArray).to.have.length(1);
+        var style = styleArray[0];
+        expect(style).to.be.an(ol.style.Style);
+        expect(style).to.be(dfltStyle);
+      });
+    });
+  });
+
+  describe('without parameters', function() {
+
     beforeEach(function() {
       format = new ol.format.KML();
     });
 
+    it('set constant variables', function() {
+      expect(ol.format.KML.DEFAULT_STYLE_ARRAY_).to.be.an(Array);
+    });
+
     describe('#readProjection', function() {
       it('returns the default projection from document', function() {
         var projection = format.readProjectionFromDocument();
@@ -2887,5 +2933,5 @@ describe('ol.format.KML', function() {
       });
 
     });
-
+  });
 });