fix metadata test + test metadata if url is using subdomains

spec/Layers/TiledMapLayerSpec.js

@@ -15,6 +15,8 @@ describe('L.esri.TiledMapLayer', function () {
   }
 
   var url = 'http://services.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer';
+  var subdomainsUrl = 'http://{s}.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer';
+  var subdomainsArray = ['server', 'services'];
   var layer;
   var server;
   var map;
@@ -130,19 +132,38 @@ describe('L.esri.TiledMapLayer', function () {
   });
 
   it('should display a metadata attribution if one is present and no attribution option was passed', function () {
-    var copyrightText;
+    server.respondWith('GET', 'http://services.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer/?f=json', JSON.stringify({
+      copyrightText: 'foo',
+      spatialReference: {
+        wkid: 102100,
+        latestWkid: 3857
+      }
+    }));
+
     layer = L.esri.tiledMapLayer({
       url: url
     }).addTo(map);
 
-    layer.on('load', function () {
-      layer.metadata(function (err, meta) {
-        if (meta && meta.hasOwnProperty(copyrightText)) {
-          copyrightText = meta.copyrightText;
-          expect(map.attributionControl._container.innerHTML).to.contain(copyrightText);
-        }
-      });
-    });
+    server.respond();
+    expect(map.attributionControl._container.innerHTML).to.contain('foo');
+  });
+
+  it('should display a metadata attribution if one is present and no attribution option was passed and url is defined with subdomains', function () {
+    server.respondWith('GET', 'http://server.arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/MapServer/?f=json', JSON.stringify({
+      copyrightText: 'foo',
+      spatialReference: {
+        wkid: 102100,
+        latestWkid: 3857
+      }
+    }));
+
+    layer = L.esri.tiledMapLayer({
+      url: subdomainsUrl,
+      subdomains: subdomainsArray
+    }).addTo(map);
+
+    server.respond();
+    expect(map.attributionControl._container.innerHTML).to.contain('foo');
   });
 });
 /* eslint-enable handle-callback-err */