From 204252462fabe0167f03d8b338035098c4a9fdff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torkel=20=C3=96degaard?= <torkel@grafana.org>
Date: Wed, 3 Feb 2021 15:04:06 +0100
Subject: [PATCH] TestData: Fixes issue with for ever loading state when all
 queries are hidden (#30861)

---
 public/app/plugins/datasource/testdata/datasource.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/public/app/plugins/datasource/testdata/datasource.ts b/public/app/plugins/datasource/testdata/datasource.ts
index cebd9be0dbb..20ae731b7aa 100644
--- a/public/app/plugins/datasource/testdata/datasource.ts
+++ b/public/app/plugins/datasource/testdata/datasource.ts
@@ -86,6 +86,10 @@ export class TestDataDataSource extends DataSourceWithBackend<TestDataQuery> {
       streams.push(super.query(backendOpts));
     }
 
+    if (streams.length === 0) {
+      return of({ data: [] });
+    }
+
     return merge(...streams);
   }