Function for making a scale transform

test/spec/ol/transform.test.js

@@ -5,6 +5,7 @@ import {
   setFromArray,
   translate,
   scale,
+  makeScale,
   rotate,
   multiply,
   compose,
@@ -69,6 +70,20 @@ describe('ol.transform', function() {
     });
   });
 
+  describe('makeScale()', function() {
+    it('creates a scale transform', function() {
+      const target = create();
+      makeScale(target, 2, 3);
+      expect(target).to.eql([2, 0, 0, 3, 0, 0]);
+    });
+
+    it('returns the target', function() {
+      const target = create();
+      const transform = makeScale(target, 2, 3);
+      expect(transform).to.be(target);
+    });
+  });
+
   describe('rotate()', function() {
     it('applies rotation to a transform', function() {
       const transform = create();