tests

src/views/MainView/Workspace/Tabs/Tab/DataView/Graph/GraphEditor.vue

@@ -338,11 +338,10 @@ export default {
       if (!this.dataSources) {
         return []
       }
+      const firstColumnName = Object.keys(this.dataSources)[0]
       try {
         return (
-          this.dataSources[Object.keys(this.dataSources)[0] || 'doc'].map(
-            json => JSON.parse(json)
-          ) || []
+          this.dataSources[firstColumnName].map(json => JSON.parse(json)) || []
         )
       } catch {
         return []

src/views/MainView/Workspace/Tabs/Tab/DataView/index.vue

@@ -16,6 +16,7 @@
     </div>
     <side-tool-bar panel="dataView" @switch-to="$emit('switchTo', $event)">
       <icon-button
+        ref="chartBtn"
         :active="mode === 'chart'"
         tooltip="Switch to chart"
         tooltipPosition="top-left"
@@ -33,6 +34,7 @@
         <pivot-icon />
       </icon-button>
       <icon-button
+        ref="graphBtn"
         :active="mode === 'graph'"
         tooltip="Switch to graph"
         tooltipPosition="top-left"
@@ -56,6 +58,7 @@
       <div class="side-tool-bar-divider" />
 
       <icon-button
+        ref="pngExportBtn"
         :disabled="!exportToPngEnabled || loadingImage"
         :loading="loadingImage"
         tooltip="Save as PNG image"