Width and height on unreferenced bounds.

src/ol/UnreferencedBounds.js

@@ -92,3 +92,16 @@ ol.UnreferencedBounds.prototype.setMaxY = function(maxY) {
     this.maxY_ = maxY;
 };
 
+/**
+ * @return {number} Bounds width.
+ */
+ol.UnreferencedBounds.prototype.getWidth = function() {
+    return this.maxX_ - this.minX_;
+};
+
+/**
+ * @return {number} Bounds height.
+ */
+ol.UnreferencedBounds.prototype.getHeight = function() {
+    return this.maxY_ - this.minY_;
+};

test/index.html

@@ -55,6 +55,7 @@
   <script type="text/javascript" src="spec/api/layer/xyz.test.js"></script>
   <script type="text/javascript" src="spec/api/feature.test.js"></script>
   <script type="text/javascript" src="spec/ol/Events.test.js"></script>
+  <script type="text/javascript" src="spec/ol/UnreferencedBounds.test.js"></script>
   <script type="text/javascript" src="spec/ol/Projection.test.js"></script>
   <script type="text/javascript" src="spec/ol/Tile.test.js"></script>
   <script type="text/javascript" src="spec/ol/TileSet.test.js"></script>

test/spec/ol/UnreferencedBounds.test.js

@@ -0,0 +1,21 @@
+describe("ol.UnreferencedBounds", function() {
+
+    describe("creating a bounds", function() {
+        it("creates a bounds instance", function() {
+            var bounds = new ol.UnreferencedBounds(1, 2, 3, 4);
+            expect(bounds).toBeA(ol.UnreferencedBounds);
+        });
+    });
+    describe("getting properties", function() {
+        var bounds = new ol.UnreferencedBounds(10, 20, 30, 50);
+
+        it("allows getting width", function() {
+            expect(bounds.getWidth()).toBe(20);
+        });
+
+        it("allows getting height", function() {
+            expect(bounds.getHeight()).toBe(30);
+        });
+    });
+
+});