diff --git a/src/ol/layer/TileLayer.js b/src/ol/layer/TileLayer.js
index 3fe27a9c7e..320c586d1a 100644
--- a/src/ol/layer/TileLayer.js
+++ b/src/ol/layer/TileLayer.js
@@ -10,6 +10,12 @@ goog.require('ol.TileCache');
  */
 ol.layer.TileLayer = function() {
 
+    /**
+     * @private
+     * @type {string|undefined}
+     */
+    this.url_ = undefined;
+
     /**
      * @protected
      * @type {ol.Projection}
@@ -161,6 +167,14 @@ ol.layer.TileLayer.prototype.getResolutions = function() {
     return this.resolutions_;
 };
 
+/**
+ * Set the layer URL.
+ * @param {string} url
+ */
+ol.layer.TileLayer.prototype.setUrl = function(url) {
+    this.url_ = url;
+};
+
 /**
  * Set layer projection.
  * @param {ol.Projection} projection
@@ -233,3 +247,84 @@ ol.layer.TileLayer.prototype.getTile = function(url, bounds) {
     }
     return tile;
 };
+
+/**
+ * Get data from the layer. This is the layer's main API function.
+ * @param {ol.Bounds} bounds
+ * @param {number} resolution
+ */
+ol.layer.TileLayer.prototype.getData = function(bounds, resolution) {
+    var me = this,
+        zoomAndRes = me.getZoomAndRes(resolution),
+        zoom = zoomAndRes[0];
+    resolution = zoomAndRes[1];
+
+    // define some values used for the actual tiling
+    var boundsMinX = bounds.getMinX(),
+        boundsMaxX = bounds.getMaxX(),
+        boundsMinY = bounds.getMinY(),
+        boundsMaxY = bounds.getMaxY(),
+
+        tileWidth = me.tileWidth_,
+        tileHeight = me.tileHeight_,
+
+        tileOrigin = me.getTileOrigin(),
+        tileOriginX = tileOrigin[0],
+        tileOriginY = tileOrigin[1],
+
+        tileWidthGeo = tileWidth * resolution,
+        tileHeightGeo = tileHeight * resolution,
+
+        offsetX = Math.floor(
+                      (boundsMinX - tileOriginX) / tileWidthGeo),
+        offsetY = Math.floor(
+                      (tileOriginY - boundsMaxY) / tileHeightGeo),
+
+        gridLeft = tileOriginX + tileWidthGeo * offsetX,
+        gridTop = tileOriginY - tileHeightGeo * offsetY;
+
+    // now tile
+    var tiles = [],
+        tile,
+        url,
+        tileBottom, tileRight, tileBounds;
+    for (var y=0, tileTop=gridTop; tileTop > boundsMinY;
+             ++y, tileTop-=tileHeightGeo) {
+        tiles[y] = [];
+        tileBottom = tileTop - tileHeightGeo;
+        for (var x=0, tileLeft=gridLeft; tileLeft < boundsMaxX;
+                 ++x, tileLeft+=tileWidthGeo) {
+            tileRight = tileLeft + tileWidthGeo;
+            tileBounds = new ol.Bounds(tileLeft, tileBottom,
+                                       tileRight, tileTop, this.projection_);
+            url = me.url_.replace('{x}', offsetX + x + '')
+                         .replace('{y}', offsetY + y + '')
+                         .replace('{z}', zoom + '');
+            tile = this.getTile(url, tileBounds);
+            tiles[y][x] = tile;
+        }
+    }
+
+    return new ol.TileSet(tiles, tileWidth, tileHeight, resolution);
+};
+
+/**
+ * Get the zoom level (z) and layer resolution for the given resolution.
+ * @param {number} resolution
+ * @return {Array.<number>}
+ */
+ol.layer.TileLayer.prototype.getZoomAndRes = function(resolution) {
+    var delta = Number.POSITIVE_INFINITY,
+        currentDelta,
+        resolutions = this.getResolutions(),
+        zoom;
+    for (var i=resolutions.length-1; i>=0; --i) {
+        currentDelta = Math.abs(resolutions[i] - resolution);
+        if (currentDelta > delta) {
+            break;
+        }
+        delta = currentDelta;
+    }
+    zoom = i + 1;
+    return [zoom, resolutions[zoom]];
+};
diff --git a/src/ol/layer/XYZ.js b/src/ol/layer/XYZ.js
index d1c885f672..c32ea74a50 100644
--- a/src/ol/layer/XYZ.js
+++ b/src/ol/layer/XYZ.js
@@ -15,96 +15,11 @@ goog.require('ol.TileSet');
  */
 ol.layer.XYZ = function(url) {
 
-    /**
-     * @private
-     * @type {string}
-     */
-    this.url_ = url;
-
     goog.base(this);
 
+    this.setUrl(url);
     this.setMaxResolution(156543.03390625);
 };
 
 goog.inherits(ol.layer.XYZ, ol.layer.TileLayer);
 
-/**
- * Get data from the layer. This is the layer's main API function.
- * @param {ol.Bounds} bounds
- * @param {number} resolution
- */
-ol.layer.XYZ.prototype.getData = function(bounds, resolution) {
-    var me = this,
-        zoomAndRes = me.getZoomAndRes(resolution),
-        zoom = zoomAndRes[0];
-    resolution = zoomAndRes[1];
-
-    // define some values used for the actual tiling
-    var boundsMinX = bounds.getMinX(),
-        boundsMaxX = bounds.getMaxX(),
-        boundsMinY = bounds.getMinY(),
-        boundsMaxY = bounds.getMaxY(),
-
-        tileWidth = me.tileWidth_,
-        tileHeight = me.tileHeight_,
-
-        tileOrigin = me.getTileOrigin(),
-        tileOriginX = tileOrigin[0],
-        tileOriginY = tileOrigin[1],
-
-        tileWidthGeo = tileWidth * resolution,
-        tileHeightGeo = tileHeight * resolution,
-
-        offsetX = Math.floor(
-                      (boundsMinX - tileOriginX) / tileWidthGeo),
-        offsetY = Math.floor(
-                      (tileOriginY - boundsMaxY) / tileHeightGeo),
-
-        gridLeft = tileOriginX + tileWidthGeo * offsetX,
-        gridTop = tileOriginY - tileHeightGeo * offsetY;
-
-    // now tile
-    var tiles = [],
-        tile,
-        url,
-        tileBottom, tileRight, tileBounds;
-    for (var y=0, tileTop=gridTop; tileTop > boundsMinY;
-             ++y, tileTop-=tileHeightGeo) {
-        tiles[y] = [];
-        tileBottom = tileTop - tileHeightGeo;
-        for (var x=0, tileLeft=gridLeft; tileLeft < boundsMaxX;
-                 ++x, tileLeft+=tileWidthGeo) {
-            tileRight = tileLeft + tileWidthGeo;
-            tileBounds = new ol.Bounds(tileLeft, tileBottom,
-                                       tileRight, tileTop, this.projection_);
-            url = me.url_.replace('{x}', offsetX + x + '')
-                         .replace('{y}', offsetY + y + '')
-                         .replace('{z}', zoom + '');
-            tile = this.getTile(url, tileBounds);
-            tiles[y][x] = tile;
-        }
-    }
-
-    return new ol.TileSet(tiles, tileWidth, tileHeight, resolution);
-};
-
-/**
- * Get the zoom level (z) and layer resolution for the given resolution.
- * @param {number} resolution
- * @return {Array.<number>}
- */
-ol.layer.XYZ.prototype.getZoomAndRes = function(resolution) {
-    var delta = Number.POSITIVE_INFINITY,
-        currentDelta,
-        resolutions = this.getResolutions(),
-        zoom;
-    for (var i=resolutions.length-1; i>=0; --i) {
-        currentDelta = Math.abs(resolutions[i] - resolution);
-        if (currentDelta > delta) {
-            break;
-        }
-        delta = currentDelta;
-    }
-    zoom = i + 1;
-    return [zoom, resolutions[zoom]];
-};
diff --git a/test/spec/ol/layer/TileLayer.test.js b/test/spec/ol/layer/TileLayer.test.js
index e252258b90..cd7706e06e 100644
--- a/test/spec/ol/layer/TileLayer.test.js
+++ b/test/spec/ol/layer/TileLayer.test.js
@@ -133,4 +133,155 @@ describe('ol.layer.TileLayer', function() {
 
         });
     });
+
+    describe('get data from the layer', function() {
+        var layer;
+
+        beforeEach(function() {
+            layer = new ol.layer.TileLayer();
+            layer.setUrl('/{z}/{x}/{y}');
+            layer.setResolutions([1, 0.5, 0.25]);
+            layer.setTileOrigin(-128, 128);
+        });
+
+        describe('extent -128,-128,128,128, resolution 1', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(-128, -128, 128, 128), 1);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(1);
+                expect(tiles[0].length).toEqual(1);
+
+                var tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/0/0/0');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+        describe('extent -128,-128,128,128, resolution 0.5', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(-128, -128, 128, 128), 0.5);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(2);
+                expect(tiles[0].length).toEqual(2);
+
+                var tile;
+
+                tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/1/0/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[0][1];
+                expect(tile.getUrl()).toEqual('/1/1/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[1][0];
+                expect(tile.getUrl()).toEqual('/1/0/1');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[1][1];
+                expect(tile.getUrl()).toEqual('/1/1/1');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+        describe('extent -64,-64,64,64, resolution 0.5', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(-64, -64, 64, 64), 0.5);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(2);
+                expect(tiles[0].length).toEqual(2);
+
+                var tile;
+
+                tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/1/0/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[0][1];
+                expect(tile.getUrl()).toEqual('/1/1/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[1][0];
+                expect(tile.getUrl()).toEqual('/1/0/1');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[1][1];
+                expect(tile.getUrl()).toEqual('/1/1/1');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+        describe('extent -96,32,-32,96, resolution 0.5', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(-96, 32, -32, 96), 0.5);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(1);
+                expect(tiles[0].length).toEqual(1);
+
+                var tile;
+
+                tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/1/0/0');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+        describe('extent -32,32,32,96, resolution 0.5', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(-32, 32, 32, 96), 0.5);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(1);
+                expect(tiles[0].length).toEqual(2);
+
+                var tile;
+
+                tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/1/0/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[0][1];
+                expect(tile.getUrl()).toEqual('/1/1/0');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+        describe('extent 32,-32,96,32, resolution 0.5', function() {
+
+            it('returns the expected data', function() {
+                var tileset = layer.getData(
+                    new ol.Bounds(32, -32, 96, 32), 0.5);
+
+                var tiles = tileset.getTiles();
+                expect(tiles.length).toEqual(2);
+                expect(tiles[0].length).toEqual(1);
+                expect(tiles[1].length).toEqual(1);
+
+                var tile;
+
+                tile = tiles[0][0];
+                expect(tile.getUrl()).toEqual('/1/1/0');
+                expect(tile.getImg()).toBeDefined();
+
+                tile = tiles[1][0];
+                expect(tile.getUrl()).toEqual('/1/1/1');
+                expect(tile.getImg()).toBeDefined();
+            });
+        });
+
+    });
 });
diff --git a/test/spec/ol/layer/XYZ.test.js b/test/spec/ol/layer/XYZ.test.js
index e048486804..92cedf109d 100644
--- a/test/spec/ol/layer/XYZ.test.js
+++ b/test/spec/ol/layer/XYZ.test.js
@@ -9,153 +9,4 @@ describe('ol.layer.XYZ', function() {
 
     });
 
-    describe('get data from the layer', function() {
-        var layer;
-
-        beforeEach(function() {
-            layer = new ol.layer.XYZ('/{z}/{x}/{y}');
-            layer.setResolutions([1, 0.5, 0.25]);
-            layer.setTileOrigin(-128, 128);
-        });
-
-        describe('extent -128,-128,128,128, resolution 1', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(-128, -128, 128, 128), 1);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(1);
-                expect(tiles[0].length).toEqual(1);
-
-                var tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/0/0/0');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-        describe('extent -128,-128,128,128, resolution 0.5', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(-128, -128, 128, 128), 0.5);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(2);
-                expect(tiles[0].length).toEqual(2);
-
-                var tile;
-
-                tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/1/0/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[0][1];
-                expect(tile.getUrl()).toEqual('/1/1/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[1][0];
-                expect(tile.getUrl()).toEqual('/1/0/1');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[1][1];
-                expect(tile.getUrl()).toEqual('/1/1/1');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-        describe('extent -64,-64,64,64, resolution 0.5', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(-64, -64, 64, 64), 0.5);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(2);
-                expect(tiles[0].length).toEqual(2);
-
-                var tile;
-
-                tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/1/0/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[0][1];
-                expect(tile.getUrl()).toEqual('/1/1/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[1][0];
-                expect(tile.getUrl()).toEqual('/1/0/1');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[1][1];
-                expect(tile.getUrl()).toEqual('/1/1/1');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-        describe('extent -96,32,-32,96, resolution 0.5', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(-96, 32, -32, 96), 0.5);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(1);
-                expect(tiles[0].length).toEqual(1);
-
-                var tile;
-
-                tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/1/0/0');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-        describe('extent -32,32,32,96, resolution 0.5', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(-32, 32, 32, 96), 0.5);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(1);
-                expect(tiles[0].length).toEqual(2);
-
-                var tile;
-
-                tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/1/0/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[0][1];
-                expect(tile.getUrl()).toEqual('/1/1/0');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-        describe('extent 32,-32,96,32, resolution 0.5', function() {
-
-            it('returns the expected data', function() {
-                var tileset = layer.getData(
-                    new ol.Bounds(32, -32, 96, 32), 0.5);
-
-                var tiles = tileset.getTiles();
-                expect(tiles.length).toEqual(2);
-                expect(tiles[0].length).toEqual(1);
-                expect(tiles[1].length).toEqual(1);
-
-                var tile;
-
-                tile = tiles[0][0];
-                expect(tile.getUrl()).toEqual('/1/1/0');
-                expect(tile.getImg()).toBeDefined();
-
-                tile = tiles[1][0];
-                expect(tile.getUrl()).toEqual('/1/1/1');
-                expect(tile.getImg()).toBeDefined();
-            });
-        });
-
-    });
 });