add test

Author: archmoj

test/image/baselines/zz-zorder_default-orders.png

@@ -0,0 +1,71 @@
+{
+    "data": [
+        {
+            "marker": {
+                "size": 10
+            },
+            "mode": "markers",
+            "name": "scatter",
+            "type": "scatter",
+            "x": [
+                1,
+                2,
+                3,
+                4,
+                5
+            ],
+            "y": [
+                2,
+                1,
+                6,
+                4,
+                4
+            ]
+        },
+        {
+            "name": "bar",
+            "type": "bar",
+            "x": [
+                1,
+                2,
+                3,
+                4,
+                5
+            ],
+            "y": [
+                1,
+                6,
+                3,
+                6,
+                1
+            ]
+        },
+        {
+            "mode": "lines",
+            "name": "line",
+            "type": "scatter",
+            "x": [
+                1,
+                2,
+                3,
+                4,
+                5
+            ],
+            "y": [
+                2,
+                3,
+                4,
+                3,
+                2
+            ],
+            "zorder": -1
+        }
+    ],
+    "layout": {
+        "width": 350,
+        "height": 350,
+        "title": {
+            "text": "Move line plot to back only"
+        }
+    }
+}