Organize tests

test/rendering/cases/vector-zindex/main.js

@@ -0,0 +1,58 @@
+import Feature from '../../../../src/ol/Feature.js';
+import LineString from '../../../../src/ol/geom/LineString.js';
+import Map from '../../../../src/ol/Map.js';
+import Stroke from '../../../../src/ol/style/Stroke.js';
+import Style from '../../../../src/ol/style/Style.js';
+import VectorLayer from '../../../../src/ol/layer/Vector.js';
+import VectorSource from '../../../../src/ol/source/Vector.js';
+import View from '../../../../src/ol/View.js';
+
+const vectorSourceRed = new VectorSource();
+const vectorSourceBlue = new VectorSource();
+let feature;
+
+feature = new Feature({
+  geometry: new LineString([
+    [-60, 20],
+    [45, 20],
+  ]),
+});
+feature.setStyle(
+  new Style({
+    stroke: new Stroke({color: '#f00', width: 10}),
+  })
+);
+vectorSourceRed.addFeature(feature);
+
+feature = new Feature({
+  geometry: new LineString([
+    [0, -50],
+    [0, 60],
+  ]),
+});
+feature.setStyle(
+  new Style({
+    stroke: new Stroke({color: '#00f', width: 16}),
+  })
+);
+vectorSourceBlue.addFeature(feature);
+
+new Map({
+  pixelRatio: 1,
+  layers: [
+    new VectorLayer({
+      zIndex: 1,
+      source: vectorSourceRed,
+    }),
+    new VectorLayer({
+      source: vectorSourceBlue,
+    }),
+  ],
+  target: 'map',
+  view: new View({
+    center: [0, 0],
+    resolution: 1,
+  }),
+});
+
+render();