Disallowed undefined 'maxResolution' value

src/ol/layer/layerbase.js

@@ -152,7 +152,7 @@ ol.layer.Base.prototype.getLayerState = function() {
     sourceState: sourceState,
     visible: visible,
     extent: extent,
-    maxResolution: goog.isDef(maxResolution) ? maxResolution : Infinity,
+    maxResolution: maxResolution,
     minResolution: goog.isDef(minResolution) ? Math.max(minResolution, 0) : 0
   };
 };
@@ -190,12 +190,12 @@ goog.exportProperty(
 
 
 /**
- * @return {number|undefined} The maximum resolution of the layer.
+ * @return {number} The maximum resolution of the layer.
  * @observable
  * @api stable
  */
 ol.layer.Base.prototype.getMaxResolution = function() {
-  return /** @type {number|undefined} */ (
+  return /** @type {number} */ (
       this.get(ol.layer.LayerProperty.MAX_RESOLUTION));
 };
 goog.exportProperty(
@@ -349,7 +349,7 @@ goog.exportProperty(
 
 
 /**
- * @param {number|undefined} maxResolution The maximum resolution of the layer.
+ * @param {number} maxResolution The maximum resolution of the layer.
  * @observable
  * @api stable
  */

test/spec/ol/layer/layer.test.js

@@ -46,6 +46,10 @@ describe('ol.layer.Layer', function() {
       expect(layer.getVisible()).to.be(true);
     });
 
+    it('provides default max resolution', function() {
+      expect(layer.getMaxResolution()).to.be(Infinity);
+    });
+
     it('provides default layerState', function() {
       expect(layer.getLayerState()).to.eql({
         layer: layer,