Violin Percy test

Author: dmt0

dev/mocks.json

@@ -3,6 +3,7 @@
   "/percy/panelTest.json",
   "/percy/histogram.json",
   "/percy/histogram2d.json",
+  "/percy/violin.json",
   "0.json",
   "1.json",
   "10.json",

dev/percy/index.js

@@ -1,5 +1,6 @@
 import panelTest from './panelTest.json';
 import histogram from './histogram.json';
 import histogram2d from './histogram2d.json';
+import violin from './violin.json';
 
-export {panelTest, histogram, histogram2d};
+export {panelTest, histogram, histogram2d, violin};

dev/percy/violin.json

@@ -0,0 +1,28 @@
+{
+  "data": [
+    {
+      "type": "violin",
+      "mode": "markers",
+      "uid": "91db56",
+      "box": {
+        "visible": true
+      },
+      "meanline": {
+        "visible": true
+      },
+      "bandwidth": 0,
+      "x": [
+        1,
+        2,
+        3
+      ],
+      "xsrc": "x1"
+    }
+  ],
+  "layout": {
+    "xaxis": {},
+    "yaxis": {},
+    "autosize": true
+  },
+  "frames": []
+}

src/__percy__/panels.percy.js

@@ -16,6 +16,7 @@ import './percy.css';
 const panelsToTest = {
   histogram: ['GraphCreatePanel'],
   histogram2d: ['GraphCreatePanel', 'StyleTracesPanel'],
+  violin: ['GraphCreatePanel', 'StyleTracesPanel'],
 };
 
 window.URL.createObjectURL = function() {