Add rendering test for layer tile simple

rendering/cases/layer-tile-simple/main.js

@@ -0,0 +1,25 @@
+import Map from '../../../src/ol/CompositeMap.js';
+import View from '../../../src/ol/View.js';
+import TileLayer from '../../../src/ol/layer/Tile.js';
+import {fromLonLat} from "../../../src/ol/proj";
+import XYZ from "../../../src/ol/source/XYZ";
+
+const center = fromLonLat([8.6, 50.1]);
+
+new Map({
+  layers: [
+    new TileLayer({
+      source: new XYZ({
+        url: '/data/tiles/satellite/{z}/{x}/{y}.jpg',
+        transition: 0
+      })
+    })
+  ],
+  target: 'map',
+  view: new View({
+    center: center,
+    zoom: 3
+  })
+});
+
+render();

test/rendering/ol/layer/tile.test.js

@@ -73,34 +73,6 @@ describe('ol.rendering.layer.Tile', function() {
     });
   }
 
-  describe('single tile layer', function() {
-    let source;
-
-    beforeEach(function() {
-      source = new XYZ({
-        url: 'rendering/ol/data/tiles/osm/{z}/{x}/{y}.png',
-        transition: 0
-      });
-    });
-
-    it('tests the canvas renderer', function(done) {
-      createMap('canvas');
-      waitForTiles('canvas', [source], {}, function() {
-        expectResemble(map, 'rendering/ol/layer/expected/osm-canvas.png',
-          IMAGE_TOLERANCE, done);
-      });
-    });
-
-    where('WebGL').it('tests the WebGL renderer', function(done) {
-      assertWebGL();
-      createMap('webgl');
-      waitForTiles('webgl', [source], {}, function() {
-        expectResemble(map, 'rendering/ol/layer/expected/osm-webgl.png',
-          IMAGE_TOLERANCE, done);
-      });
-    });
-  });
-
   describe('two tile layers', function() {
     let source1, source2;