image test for issue 6089

Author: archmoj

test/image/baselines/z-legend-row-group-height.png

@@ -0,0 +1,32 @@
+{
+  "data": [
+    {
+      "legendgroup": "A",
+      "name": "Long label in group A",
+      "y": [1, 2, 3, 4]
+    },
+    {
+      "legendgroup": "B",
+      "name": "b1",
+      "y": [2, 3, 4, 1]
+    },
+    {
+      "legendgroup": "B",
+      "name": "Very long label in another group",
+      "y": [3, 4, 1, 2]
+    },
+    {
+      "legendgroup": "B",
+      "name": "b3",
+      "y": [4, 1, 2, 3]
+    }
+  ],
+  "layout": {
+    "paper_bgcolor": "lightblue",
+    "height": 350,
+    "width": 350,
+    "legend": {
+      "orientation": "h"
+    }
+  }
+}