Add #2298 test

Author: dy

test/jasmine/tests/gl2d_plot_interact_test.js

@@ -671,7 +671,50 @@ describe('Test gl2d plots', function() {
         .then(done);
     });
 
-    fit('should update selected points', function(done) {
+    it('should update selected points', function(done) {
         // #2298
+        var dat = [{
+            'x': [1],
+            'y': [1],
+            'type': 'scattergl',
+            'mode': 'markers',
+            'selectedpoints': [0]
+        }];
+
+        Plotly.plot(gd, dat, {
+            width: 500,
+            height: 500,
+            dragmode: 'select'
+        })
+        .then(function() {
+            var scene = gd._fullLayout._plots.xy._scene;
+
+            expect(scene.count).toBe(1);
+            expect(scene.selectBatch).toEqual([[0]]);
+            expect(scene.unselectBatch).toEqual([[]]);
+            spyOn(scene.scatter2d, 'draw');
+
+            var trace = {
+                x: [2],
+                y: [1],
+                type: 'scattergl',
+                mode: 'markers',
+                marker: {color: 'red'}
+            };
+
+            return Plotly.addTraces(gd, trace);
+        })
+        .then(function() {
+            var scene = gd._fullLayout._plots.xy._scene;
+
+            expect(scene.count).toBe(2);
+            expect(scene.selectBatch).toEqual([[0], []]);
+            expect(scene.unselectBatch).toEqual([[], [0]]);
+            expect(scene.markerOptions.length).toBe(2);
+            expect(scene.markerOptions[1].color).toEqual(new Uint8Array([255, 0, 0, 255]));
+            expect(scene.scatter2d.draw).toHaveBeenCalled();
+        })
+        .catch(fail)
+        .then(done);
     });
 });