Organize tests

test/rendering/cases/layer-vector-extent-rotation/main.js

@@ -0,0 +1,26 @@
+import GeoJSON from '../../../../src/ol/format/GeoJSON.js';
+import Map from '../../../../src/ol/Map.js';
+import VectorLayer from '../../../../src/ol/layer/Vector.js';
+import VectorSource from '../../../../src/ol/source/Vector.js';
+import View from '../../../../src/ol/View.js';
+import {transformExtent} from '../../../../src/ol/proj.js';
+
+new Map({
+  target: 'map',
+  view: new View({
+    center: [0, 0],
+    zoom: 1,
+    rotation: Math.PI / 4,
+  }),
+  layers: [
+    new VectorLayer({
+      extent: transformExtent([-50, -45, 50, 45], 'EPSG:4326', 'EPSG:3857'),
+      source: new VectorSource({
+        url: '/data/countries.json',
+        format: new GeoJSON(),
+      }),
+    }),
+  ],
+});
+
+render();