diff --git a/test/jasmine/spec/offlineEnablerSpec.js b/test/jasmine/spec/offlineEnablerSpec.js
index 7dbb231..0870523 100644
--- a/test/jasmine/spec/offlineEnablerSpec.js
+++ b/test/jasmine/spec/offlineEnablerSpec.js
@@ -41,20 +41,26 @@ describe("offline enabler library", function()
 	{
 		waitsFor(function(){ return initCompleted; });
 
-		expect(g_basemapLayer.goOffline).toEqual(jasmine.any(Function));
-		expect(g_basemapLayer.offline.online).toEqual(true);
-		g_basemapLayer.goOffline();
-		expect(g_basemapLayer.offline.online).toEqual(false);
+		runs(function()
+		{
+			expect(g_basemapLayer.goOffline).toEqual(jasmine.any(Function));
+			expect(g_basemapLayer.offline.online).toEqual(true);
+			g_basemapLayer.goOffline();
+			expect(g_basemapLayer.offline.online).toEqual(false);
+		});
 	});
 
 	it("can go online", function()
 	{
 		waitsFor(function(){ return initCompleted; });
 
-		expect(g_basemapLayer.goOffline).toEqual(jasmine.any(Function));
-		expect(g_basemapLayer.offline.online).toEqual(false);
-		g_basemapLayer.goOnline();
-		expect(g_basemapLayer.offline.online).toEqual(true);
+		runs(function()
+		{
+			expect(g_basemapLayer.goOffline).toEqual(jasmine.any(Function));
+			expect(g_basemapLayer.offline.online).toEqual(false);
+			g_basemapLayer.goOnline();
+			expect(g_basemapLayer.offline.online).toEqual(true);
+		});
 	})
 
 	it("delete all tiles", function()
@@ -78,19 +84,81 @@ describe("offline enabler library", function()
 	{
 		waitsFor(function(){ return initCompleted; });
 
-		g_basemapLayer.getOfflineUsage(function(usage)
-		{
-			expect(usage.tileCount).toEqual(0);
-			g_basemapLayer.storeTile(14,6177,8023, function(success)
+		runs(function()
+		{		
+			g_basemapLayer.getOfflineUsage(function(usage)
 			{
-				expect(success).toEqual(true);
-				g_basemapLayer.getOfflineUsage(function(usage)
+				expect(usage.tileCount).toEqual(0);
+				g_basemapLayer.storeTile(14,6177,8023, function(success)
 				{
-					expect(usage.tileCount).toEqual(1);
+					expect(success).toEqual(true);
+					g_basemapLayer.getOfflineUsage(function(usage)
+					{
+						expect(usage.tileCount).toEqual(1);
+					});
 				});
 			});
+		})
+	});
+
+	it("gets level estimation", function()
+	{
+		waitsFor(function(){ return initCompleted; });
+
+		runs(function()
+		{
+			require(["esri/geometry/Extent"],function(Extent)
+			{			
+				var extent = new Extent({"xmin":-822542.2830377579,"ymin":4580841.761960262,"xmax":94702.05638410954,"ymax":5131188.365613382,"spatialReference":{"wkid":102100}});
+				var tileSize = g_basemapLayer.estimateTileSize();
+				var estimation = g_basemapLayer.getLevelEstimation(extent,10);
+				expect(estimation.tileCount).toEqual(375);
+				expect(estimation.sizeBytes).toEqual(estimation.tileCount * tileSize);
+				var estimation = g_basemapLayer.getLevelEstimation(extent,8);
+				expect(estimation.tileCount).toEqual(28);
+				expect(estimation.sizeBytes).toEqual(estimation.tileCount * tileSize);
+				var estimation = g_basemapLayer.getLevelEstimation(extent,2);
+				expect(estimation.tileCount).toEqual(2);
+				expect(estimation.sizeBytes).toEqual(estimation.tileCount * tileSize);				
+			});
 		});
 	});
 
-	
+	/*
+	it("prepares the layer for offline usage", function()
+	{
+		var finished = false;
+
+		runs(function()
+		{
+			require(["esri/geometry/Extent"], function(Extent)
+			{			
+				g_basemapLayer.deleteAllTiles(function(success)
+				{
+					var extent = new Extent({"xmin":-822542.2830377579,"ymin":4580841.761960262,"xmax":94702.05638410954,"ymax":5131188.365613382,"spatialReference":{"wkid":102100}});
+					var reportProgress = jasmine.createSpy();
+					var finishedDownloading = function(err)
+					{
+						console.log("finishedDownloading");
+						expect(err).not.toBeTruthy();
+						expect(reportProgress).toHaveBeenCalled();
+						expect(reportProgress.callCount).toEqual(21); // 28
+
+						g_basemapLayer.getOfflineUsage(function(usage)
+						{
+							expect(usage.tileCount).toEqual(28);
+							finished = true;
+						});
+					}
+
+					console.log("preparing");
+					g_basemapLayer.prepareForOffline(8,8,extent,reportProgress, finishedDownloading);
+					console.log("prepared");
+				});
+			});
+		});
+
+		waitsFor(function(){ return finished; });
+	});
+	*/
 });
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