Accept an object literal for static layer styling

test/node/ol/layer/Vector.test.js

@@ -0,0 +1,57 @@
+import Fill from '../../../../src/ol/style/Fill.js';
+import Stroke from '../../../../src/ol/style/Stroke.js';
+import Style from '../../../../src/ol/style/Style.js';
+import Vector from '../../../../src/ol/layer/Vector.js';
+import expect from '../../expect.js';
+
+describe('ol/layer/Vector.js', () => {
+  describe('setStyle()', () => {
+    it('accepts a flat style', () => {
+      const layer = new Vector();
+      layer.setStyle({
+        'fill-color': 'red',
+      });
+
+      const style = layer.getStyle();
+      expect(style).to.be.a(Style);
+
+      const fill = style.getFill();
+      expect(fill).to.be.a(Fill);
+      expect(fill.getColor()).to.be('red');
+    });
+
+    it('accepts an array of flat styles', () => {
+      const layer = new Vector();
+      layer.setStyle([
+        {
+          'stroke-color': 'red',
+          'stroke-width': 10,
+        },
+        {
+          'stroke-color': 'yellow',
+          'stroke-width': 5,
+        },
+      ]);
+
+      const style = layer.getStyle();
+      expect(Array.isArray(style)).to.be(true);
+      expect(style).to.have.length(2);
+
+      const first = style[0];
+      expect(first).to.be.a(Style);
+
+      const firstStroke = first.getStroke();
+      expect(firstStroke).to.be.a(Stroke);
+      expect(firstStroke.getColor()).to.be('red');
+      expect(firstStroke.getWidth()).to.be(10);
+
+      const second = style[1];
+      expect(second).to.be.a(Style);
+
+      const secondStroke = second.getStroke();
+      expect(secondStroke).to.be.a(Stroke);
+      expect(secondStroke.getColor()).to.be('yellow');
+      expect(secondStroke.getWidth()).to.be(5);
+    });
+  });
+});