add jasmine tests for icicle restyling marker.fillet

Author: emilykl

test/jasmine/tests/icicle_test.js

@@ -793,6 +793,39 @@ describe('Test icicle restyle:', function() {
         .then(_assert('back to dflt', ['', '0.7', '', '0.7']))
         .then(done, done.fail);
     });
+
+    it('should be able to restyle *marker.fillet*', function(done) {
+        var mock = {
+            data: [{
+                type: 'icicle',
+                labels: ['Root', 'A', 'B', 'b'],
+                parents: ['', 'Root', 'Root', 'B']
+            }]
+        };
+
+        function _assert(msg, exp) {
+            return function() {
+                var layer = d3Select(gd).select('.iciclelayer');
+                layer.selectAll('.surface').each(function() {
+                    var surfaces = d3Select(this);
+                    var path = surfaces[0][0].getAttribute('d');
+                    expect(path.indexOf('a') !== -1).toEqual(exp);
+                });
+            };
+        }
+
+        Plotly.newPlot(gd, mock)
+        .then(_assert('no arcs', false))
+        .then(function() {
+            return Plotly.restyle(gd, 'marker.fillet', 10);
+        })
+        .then(_assert('has arcs', true))
+        .then(function() {
+            return Plotly.restyle(gd, 'marker.fillet', 0);
+        })
+        .then(_assert('no arcs', false))
+        .then(done, done.fail);
+    });
 });
 
 describe('Test icicle texttemplate without `values` should work at root level:', function() {