From 77347a37b1741a592c46cf5ff7cd5f8d812795b3 Mon Sep 17 00:00:00 2001
From: Ashley Harrison <ashley.harrison@grafana.com>
Date: Mon, 10 Jan 2022 14:16:07 +0000
Subject: [PATCH] Add tests to ensure infinite value mappings work (#43858)

---
 .../src/utils/valueMappings.test.ts            | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/packages/grafana-data/src/utils/valueMappings.test.ts b/packages/grafana-data/src/utils/valueMappings.test.ts
index 4a2dcd63299..11e76aefc94 100644
--- a/packages/grafana-data/src/utils/valueMappings.test.ts
+++ b/packages/grafana-data/src/utils/valueMappings.test.ts
@@ -6,6 +6,14 @@ const testSet1: ValueMapping[] = [
     type: MappingType.ValueToText,
     options: { '11': { text: 'elva' } },
   },
+  {
+    type: MappingType.ValueToText,
+    options: { Infinity: { text: 'wow infinity!' } },
+  },
+  {
+    type: MappingType.ValueToText,
+    options: { '-Infinity': { text: 'wow negative infinity!' } },
+  },
   {
     type: MappingType.RangeToText,
     options: {
@@ -94,6 +102,16 @@ describe('Format value with value mappings', () => {
     expect(getValueMappingResult(testSet1, value)).toEqual({ text: 'elva' });
   });
 
+  it('should return match result for Infinity', () => {
+    const value = Infinity;
+    expect(getValueMappingResult(testSet1, value)).toEqual({ text: 'wow infinity!' });
+  });
+
+  it('should return match result for -Infinity', () => {
+    const value = -Infinity;
+    expect(getValueMappingResult(testSet1, value)).toEqual({ text: 'wow negative infinity!' });
+  });
+
   it('should return match result with number value', () => {
     const value = 11;
     expect(getValueMappingResult(testSet1, value)).toEqual({ text: 'elva' });