From d072718d1aa88f2ceb2dc2b22372462045144553 Mon Sep 17 00:00:00 2001
From: Marcus Andersson <marcus.andersson@grafana.com>
Date: Wed, 27 May 2020 14:51:15 +0200
Subject: [PATCH] Fix: make sure that we the gauge panel can handle scenario
 with no data. (#24938)

* make sure that we can handle the empty data scenario in the gauge.

* reverted Guague.tsx and set default values on no data.

(cherry picked from commit f795a1577ca455f620f6fbf8a127e595888994b3)
---
 packages/grafana-data/src/field/fieldDisplay.test.ts | 12 ++++++++++++
 packages/grafana-data/src/field/fieldDisplay.ts      |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/packages/grafana-data/src/field/fieldDisplay.test.ts b/packages/grafana-data/src/field/fieldDisplay.test.ts
index 73ad0d9f513..162d1a287f1 100644
--- a/packages/grafana-data/src/field/fieldDisplay.test.ts
+++ b/packages/grafana-data/src/field/fieldDisplay.test.ts
@@ -161,6 +161,18 @@ describe('FieldDisplay', () => {
     expect(display[0].display.numeric).toEqual(0);
   });
 
+  it('Should always return defaults with min/max 0 when there is no data', () => {
+    const options = createEmptyDisplayOptions({
+      fieldConfig: {
+        defaults: {},
+      },
+    });
+
+    const display = getFieldDisplayValues(options);
+    expect(display[0].field.min).toEqual(0);
+    expect(display[0].field.max).toEqual(0);
+  });
+
   describe('Value mapping', () => {
     it('should apply value mapping', () => {
       const mappingConfig = [
diff --git a/packages/grafana-data/src/field/fieldDisplay.ts b/packages/grafana-data/src/field/fieldDisplay.ts
index ffc9bb4e287..087c488a999 100644
--- a/packages/grafana-data/src/field/fieldDisplay.ts
+++ b/packages/grafana-data/src/field/fieldDisplay.ts
@@ -275,6 +275,8 @@ function createNoValuesFieldDisplay(options: GetFieldDisplayValuesOptions): Fiel
     name: displayName,
     field: {
       ...defaults,
+      max: defaults.max ?? 0,
+      min: defaults.min ?? 0,
     },
     display: {
       text,